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THE PLASMON INFINITY

1. BYTE 18 ERROR CODES DESCRIPTION 0 Command OK 1 Command Aborted 2 DPR Fault 3 Timeout 4 Buffer Manager Parity Error 5 ECC Hardware Error 6 Uncorrectable 7 Control Record Invalid 8 Unreadable 9 Recovered Error A Blank Check B Blank Sector Detected C No Data Detected D Data Detected E Access Error F Scan Exhausted 10 Overwrite Detected 11 General Hardware Error 12 Illegal Request 13 Focus Adjust Error 1 14 Focus Adjust Error 2 15 Focus Adjust Error 3 16 Focus Adjust Error 4 17 Focus Adjust Error 5 18 Focus Adjust Error 6 19 Focus Adjust Error 7 1A Focus Adjust Error 8 1B Focus Adjust Error 9 1C Focus Adjust Error 10 1D Internal Hardware Error with Reading Disk SDI PSI Channel A 1E Internal Hardware Error with Reading Disk SDI PSI Channel B 1F Data Transfer Count Error 20 Processing 97653978 H Page 107 DRIVE COMMAND SET REQUEST SENSE 03H Table 41 6000 Byte 18 Error Codes Continued BYTE 18 ERROR CODES DESCRIPTION 21 DI Recovery Error Read Only 22 Media Management Read Map Failure LM 4000 only 23 Alternate Write Failure Channel A 24 Alternate Write Failure Channel B 25 Map Write Failure Channel A 26 Map Write Failure Channel B 27 Undefined 28 Cannot Read SDI PSI 29 SDI PSI Checksum Failure
2. BYTE DECIMAL DESCRIPTION BYTE HEX 100 Focus Gain 5 64 101 Focus Gain 6 65 102 Focus Gain 7 66 103 Focus Gain 8 67 104 111 Undefined 68 6F 112 113 End Track Write Energy WE Zone 1 70 71 114 115 End Track WE Zone 2 72 73 116 117 End Track WE Zone 3 74 75 118 119 End Track WE Zone 4 76 77 120 121 End Track WE Zone 5 78 79 122 123 End Track WE Zone 6 7A 7B 124 125 End Track WE Zone 7 7C 7D 126 127 End Track WE Zone 8 7E 7F 128 Primary Pulse Width Zone 1 80 129 Primary Pulse Width Zone 2 81 130 Primary Pulse Width Zone 3 82 131 Primary Pulse Width Zone 4 83 132 Primary Pulse Width Zone 5 84 133 Primary Pulse Width Zone 6 85 134 Primary Pulse Width Zone 7 86 135 Primary Pulse Width Zone 8 87 136 Secondary Pulse Width Zone 1 88 137 Secondary Pulse Width Zone 2 89 138 Secondary Pulse Width Zone 3 8A 139 Secondary Pulse Width Zone 4 8B 140 Secondary Pulse Width Zone 5 8C 141 Secondary Pulse Width Zone 6 8D 142 Secondary Pulse Width Zone 7 8E 143 Secondary Pulse Width Zone 8 8F 144 147 First User Track Zone 1 90 93 148 151 Last User Track Zone 1 94 97 152 155 First User Track Zone 2 98 9B 156 159 Last User Track Zone 2 9C 9F 160 163 Inner Zone Write Calibration Area Start Track AO A3 97653978 H Page 53 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 22 6000 Log Mode Logs Page F Media P
3. RELEASE 17H The RELEASE command is used to release previously reserved units RELEASE Command 17H BIT 7 6 5 4 3 2 1 0 BYTE 00 RELEASE 17H 01 LUN 0 3rd Party Third Party Device ID Reserved 02 Reserved 03 Reserved 04 Reserved 05 Reserved This command causes the LaserDrive to terminate any active reservation from the Initiator It is not an error for an Initiator to attempt to release a reservation that is not currently active In this case the drive returns GOOD status 97653978 H Page 95 DRIVE COMMAND SET REQUEST SENSE 03H REQUEST SENSE 03H The REQUEST SENSE command requests that the LaserDrive transfer sense data to the Initiator REQUEST SENSE Command 03H BIT 7 6 5 4 3 2 1 0 BYTE 00 REQUEST SENSE 03H 01 LUN 0 Reserved 02 Reserved 03 Reserved 04 Allocation Length 05 Reserved The sense data indicates the status or error conditions existing at the termination of the previous SCSI command This sense data is preserved for the Initiator until retrieved by the REQUEST SENSE command or until the another command is received from the Initiator The LaserDrive stores sense data independently for each SCSI Initiator It is recommended that all 255 bytes of sense data be preserved for errors requiring failure analysis Allocation Length The Allocation Length specifies the maximum number of sense bytes to be
4. BYTE DECIMAL DESCRIPTION BYTE HEX 296 299 Number of Servo Defect Interrupts 128 12B 300 303 Number of Sync Error Interrupts 12C 12F 304 307 Number of Sync Lost Interrupts 130 133 308 311 Number of Tracking Interrupts 134 137 312 315 Number of Focus Interrupts 138 13B 316 319 Number of PLL Interrupts 13C 13F 320 323 Number of Generic Seek Errors 140 143 324 327 Number of Header Errors 144 147 328 331 Number of No Track Capture Errors 148 14B 332 335 Number of Track Crossing Errors 14C 14F 336 339 Number of Lost Track Crossings 150 153 340 343 Number of Seeks Failed After Maximum Retries 154 157 344 347 Number of Read Initialization Errors 158 15B 348 351 Number of Read Power Too High Faults 15C 15F 352 355 Number of Read Timing Faults 160 163 356 359 Number of Motor Speed Faults 164 167 360 363 Number of Tracking Faults 168 16B 364 367 Number of Focus Faults 16C 16F 368 371 Number of Arbitrary Faults 170 173 372 375 Number of Aborts 174 177 376 379 Number of Command Not Complete Errors 178 17B 380 383 Number of Drive Configuration Errors 17C 17F 384 387 Number of DSP Timeout Errors 180 183 388 391 Number of DSP Sample Bad ERrors 184 187 392 Read Timing Average 188 393 396 Number of Read Retries of Optimization 189 18C Disabled 397 400 Number of Quad Sum Interrupts 180 190 401 404 Number of Codeword Corrections 191 194 405 408 Number of ECC Behind Occurrences 195 198 409 412 Number of Uncorrectable 4000 Control
5. PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 50 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 22 6000 Log Mode Logs Page F Media Product Specific Information Log Size 256 BYTE DECIMAL DESCRIPTION BYTE HEX 0 Media Family 0 1 LM 6000 Identifier 1 2 Sector Length 2 3 4 Sectors per Track 3 4 5 Write Verify Level 5 6 Maximum Read Power 6 7 Modulation Depth 7 8 Data Mark Polarity 8 9 Data Mark Amplitude 9 10 Ic Minimum Maximum A 11 Write Energy Factor B 12 15 Undefined C F 16 17 Variable Track Pitch VTP Zone 1 Start Track 10 11 18 VTP Zone 1 Start Pitch 12 19 VTP Zone 1 End Pitch 13 20 21 VTP Zone 2 Start Track 14 15 22 VTP Zone 2 Start Pitch 16 23 VTP Zone 2 End Pitch 17 24 25 VTP Zone 3 Start Track 18 19 26 VTP Zone 3 Start Pitch 1A 27 VTP Zone 3 End Pitch 1B 28 29 VTP Zone 4 Start Track 1C 1D 30 VTP Zone 4 Start Pitch 1E 31 VTP Zone 3 End Pitch 1F 32 33 End Track T Gain 1 20 21 34 35 End Track T Gain 2 22 23 36 37 End Track T Gain 3 24 25 38 39 End Track T Gain 4 26 27 40 41 End Track T Gain 5 28 29 42 43 End Track T Gain 6 2A 2B 44 45 End Track T Gain 7 2C 2D 46 47 End Track T Gain 8 2E 2F 48 49 End Track T Gain 9 30 31 50 51 End Track T Gain 10 32 33 97653978 H Page 51 DRIVE COMMAND SET
6. OXFE OXFE MCLI spin up request OXFD OXFD MCLI spin down request OXFB OXFB RCBM abort due to MCLI interrupt OXFC OXFC DPRTASK abort due to MCLI interrupt OXAA OXAA Autospin was used to spin up 97653978 H Page 45 DRIVE COMMAND SET ACCESS EVENT LOG ECH There may be asynchronous duplicate entries in the SCSI Activity Log due to SCSI messages These can be decoded with the following information OXE5 OXES SCSI Initiator Detected Error Message OXE6 OXE6 SCSI Abort Message OXE7 OXE7 SCSI Message Reject Message OXE9 OXE9 SCSI Message Parity Error Message OXEC OXEC SCSI Bus Device Reset Message 6000 Log Mode Logs Page A System Event Log Size 16 386 The System Event Log contains information that is decodable only by Plasmon LMS engineering This log information is for Plasmon use only PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 46 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 19 6000 Log Mode Logs Page B Failure Analysis Log Size 1566 BYTE DECIMAL DESCRIPTION BYTE HEX 0 CDE Log Index 0 1 Undefined 1 2 101 CDE LOG 2 65 102 105 Undefined 66 69 106 DIAG Fail Index 6A 107 Undefined eB 108 171 DF LOG 6C AB 172 173 Sense Log Index AC AD 174 398 SENSE LOG AE 18E 399 Undefin
7. AutoSpin The Automatic Spin Up AutoSpin bit controls whether the LD 6100 drive spins up automatically when a media is present after a reset power up or selftest If set to one the LD 6100 will automatically spin up If set to zero the LD 6100 will not spin up automatically The default AutoSpin value is one NOTE On an LF 6600 LF 6602 AutoSpin cannot be disabled however a value of zero in this bit will not be rejected SDTR The Synchronous Data Transfer Request SDTR field is used to configure the LaserDrive to initiate an SDTR negotiation after a reset power up self test or send diagnostic command If set this negotiation will be initiated by the LaserDrive If not set the LaserDrive will never initiate an SDTR negotiation Default is not set PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 74 DRIVE COMMAND SET MODE SELECT 15H SSDIS The START STOP Switch Disable SSDIS bit reports whether the front panel switch on the DOC will be ignored refer to the LD 6100 LF 6600LF 6602 Product Specification An SSDIS bit of one indicates that the Start Stop switch on the LaserDrive front panel will be ignored Also a Unit Attention will be generated only when the TEST switch is pressed Denied will be displayed when either switch is pressed An SSDIS bit of zero indicates that the Start Stop switch will be honored The action of the START STOP command is not affected The default SSDIS value is zer
8. ACCESS EVENT LOG ECH Table 22 6000 Log Mode Logs Page F Media Product Specific Information Log Size 256 Continued BYTE DECIMAL DESCRIPTION BYTE HEX 52 53 End Track T Gain 11 34 35 54 55 End Track T Gain 12 36 37 56 57 End Track T Gain 13 38 39 58 59 End Track T Gain 14 3A 3B 60 61 End Track T Gain 15 3C 3D 62 63 End Track T Gain 16 3E 3F 64 Tracking Gain 1 40 65 Tracking Gain 2 41 66 Tracking Gain 3 42 67 Tracking Gain 4 43 68 Tracking Gain 5 44 69 Tracking Gain 6 45 70 Tracking Gain 7 46 71 Tracking Gain 8 47 72 Tracking Gain 9 48 73 Tracking Gain 10 49 74 Tracking Gain 11 4A 75 Tracking Gain 12 4B 76 Tracking Gain 13 4C 77 Tracking Gain 14 4D 78 Tracking Gain 15 4E 79 Tracking Gain 16 4F 80 81 End Track F Gain 1 50 51 82 83 End Track F Gain 2 52 53 84 85 End Track F Gain 3 54 55 86 87 End Track F Gain 4 56 57 88 89 End Track F Gain 5 58 59 90 91 End Track F Gain 6 5A 5B 92 93 End Track F Gain 7 5C 5D 94 95 End Track F Gain 8 5E 5F 96 Focus Gain 1 60 97 Focus Gain 2 61 98 Focus Gain 3 62 99 Focus Gain 4 63 PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 52 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 22 6000 Log Mode Logs Page F Media Product Specific Information Log Size 256 Continued
9. 71 Number of Spindle Motor Commutation Not 44 47 Detected Faults 72 75 Number of Hall 3 Sensor Faults 48 4B 76 79 Number of Hall 2 Sensor Faults 4C 4F 80 83 Number of Hall 1 Sensor Faults 50 53 84 87 Number of Insert Sensor Not Detected Faults 54 57 88 91 Number of Shuttle Stepper Not Detected Faults 58 5B 92 95 Number of Lower Baseplate Stepper Not 5C 5F Detected Faults 96 99 Number of Upper Baseplate Stepper Not 60 63 Detected Faults 100 103 Number of Spindle Motor Near Speed Flags 64 67 104 107 Number of Spindle Motor At Speed Flags 68 6B 108 111 Number of Shuttle Present Detections 6C 6F PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 34 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 12 6000 Log Mode Logs Page 4 Drive Power Control DPC Statistics Log Size 192 Continued BYTE DECIMAL DESCRIPTION BYTE HEX 112 115 Number of Times Shuttle Door Was Opened 70 73 116 119 Number of Times Media Detected At Address 6 74 77 120 123 Number of Times Media Detected At Address 5 78 7B 124 127 Number of Times Media Detected At Address 4 7C 7F 128 131 Number of Times Media Detected At Address 3 80 83 132 135 Number of Times Media Detected At Address 2 84 87 136 139 Number of Times Media Detected At Address 1 88 8B 140 143 Number of Times 6000 Media Detected 8C 8F 144 1
10. THE PLASMON NFINITY LD 6100 LASERDRIVE LF 6600 RAPIDCHANGER LF 6602 RAPIDCHANGER HIGH PERFORMANCE OPTICAL DISK DRIVE AND AUTOCHANGERS SCSI INTERFACE SPECIFICATION P N 97653978 H Plasmon New features and changes to information in this document are indicated by change bars Revision level is indicated by the letter following the eight digit document number If a document has undergone major modifications change bars will not be inserted in the document Reproduction of this manual or any portion of this manual is prohibited without the express permission of Plasmon Laser Magnetic Storage Plasmon LMS Plasmon LMS reserves the right to make changes in this document and the product referred to herein without prior notice 1999 Plasmon Laser Magnetic Storage TABLE OF CONTENTS SCOPE 5 RELATED PUBLICATIONS o GENERAL DESCRIPTION 7 LASER DRIVE SCSI CHARACTERISTICS 9 COMMAND TIMEOUT 9 SCSI BUS CONDITIONS 9 ATTENTION CONDITION 9 RESET CONDITION 10 MESSAGE SYSTEM SPECIFICATION 10 MESSAGE PROTOCOL 11 MESSAGES 11 SYNCHRONOUS DATA TRANSFER REQUEST MESSAGE 16 SCSI COMMANDS AND STATUS 19 COMMAND IMPLEMENTATION REQUIREMENTS 19 RESERVED 19 UNIT ATTENTION CONDITION 19 COMMAND DESCRIPTOR BLOCK 21 OPERATION CODE 21 LOGICAL UNIT NUMBER 22 CONTROL BYTE 22 STATUS 23 COMMAND EXAMPLES 24 SINGLE COMMAND EXAMPLE 24 DISCONNECT EXAMPLE 24 COMMAND PROCESSING EXCEPTION CONDITIONS 25 REDUNDANT COMMANDS TO AN
11. 21 LaserFile Media Status Page 22 3E Reserved 3F Reserved Defined for MODE SENSE Only READ WRITE ERROR RECOVERY PAGE The Read Write Error Recovery page specifies the error recovery parameters the LaserDrive uses during any command that performs a read or write operation to the media Read Write Error Recovery Page 01H BIT 7 6 5 4 3 2 1 0 BYTE 00 Reserved Page Code 01H 01 Parameter Length 2 02 AWRE 1 Reserved EER 1 PER DTE Reserved 03 Read Retry Count Default 16 AWRE The Automatic Write Reallocation Enabled AWRE bit of one cannot be changed and indicates that the LaserDrive shall enable automatic reallocation of defective data blocks during write operation The automatic reallocation is always performed by the LaserDrive For system evaluation the information that would be available when this bit is disabled can be obtained from the EVENT LOG command EER Enable Early Recovery EER must be set to one since Error Correction cannot be disabled PER If the Post Error PER is set the LaserDrive will report recovered errors If the PER bit is not set recovered errors will not be reported For read commands a recovered error will be posted when any of the following occur Error correction is applied during the read A system retry was required during the read A relocated block was retrieved during the read PLASMON LMS LD 6100 LF 660
12. 2A Parms Failure 2B Relocation Area Is Full 2C Alternate Area Is Full 2D Map and Alternate Write Failure Channel A 2E Map and Alternate Write Failure Channel B 2F Undefined 30 Map Recovery Failure 31 Undefined 32 Alternate Recovery Failure 33 Excessive Unmapped Alternates 34 Undefined 35 Scan Condition Met 36 No Laserdrive Status 37 Four Consecutive Map Write Failures On This Laserdrive 38 Unable To Write Due To Previous Performance Monitor Failure 39 Performance Monitor Failure 10 of Write Extent Failed 3A Unknown Control Record Failure 3B EDC ASIC Transfer Error 3C Diagnostic Failure 3D Primary Secondary Map Mismatch 3E This Media Read Only Due to Failed Media Management Recovery 3F Undefined 40 SDI PSI RWS Data Failure 41 Spares 50 Full Side A 42 Spares 70 Full Side A PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 108 DRIVE COMMAND SET REQUEST SENSE 03H Table 41 6000 Byte 18 Error Codes Continued BYTE 18 ERROR CODES DESCRIPTION 43 Spares 90 Full Side A 44 Spares 50 Full Side B 45 Spares 70 Full Side B 46 Spares 90 Full Side B 47 Spares 50 Full Side A and Side B 48 Spares 70 Full Side A and Side B 49 Spares 90 Full Side A and Side B 4A DPR Protocol Error 4B RWS Calibration Fault 4C RWS Parameter Fault 4D RCBM Fault 00 4E RCBM Fault 01 4F RCBM Fault 02
13. 9F 160 163 Number of Static Relocations AO A3 164 167 Number of Write Commands Executed by RWS A4 A7 168 171 Undefined A8 AB 172 175 Number of Sectors Written by RWS AC AF 176 179 Number of Host Command Aborts Received BO B3 180 183 Number of Slow Host Occurrences B4 B7 184 187 Number of Attempted Overwrites B8 BB 188 191 Undefined BC BF 192 195 Number of DPR Verify Retries CO C3 196 199 Number of RWS Timeouts C4 C7 200 203 Number of Access Relocations C8 CB 204 207 Number of Verify Pass Relocations CC CF 208 211 Number of Unable to Write Errors DO D3 212 215 Number of Error Detection and Correction ASIC D4 D7 Parity Errors 216 219 Number of Buffer Manager ASIC Parity Errors D8 DB 97653978 H Page 37 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 14 6000 Log Mode Logs Page 6 Side B Write Statistics Log Size 220 BYTE DECIMAL DESCRIPTION BYTE HEX 0 3 Number of Drive Not Configured Errors 0 3 4 7 Number of Command Not Completed Errors 4 7 8 11 Number of Arbitrary Faults 8 B 12 15 Number of Focus Faults C F 16 19 Number of Track Faults 10 13 20 23 Number of Transfer Faults 14 17 24 27 Number of C Clock Faults 18 1B 28 81 Number of Motor Speed Faults 1C 1F 32 35 Number of Writing Timing Faults 20 23 36 39 Number of Pulse Width Errors 24 27 40 43 Number o
14. A MODE SELECT command received with the PF bit set to zero will only accept the 4 byte header Save Pages SP A Save Pages SP bit of zero indicates the LaserDrive will perform the specified MODE SELECT operation and not save any pages Therefore upon a subsequent reset or power cycle these parameters may be changed An SP bit of one indicates that the LaserDrive will perform the specified MODE SELECT operation and save to nonvolatile RAM all the savable pages including any page changes sent during the DATA OUT phase The LaserDrive rejects any MODE SELECT that attempts to change a parameter that is not changeable The LaserDrive rejects a MODE SELECT that sends a parameter value out of the range supported by the LaserDrive These command rejections cause the LaserDrive to return a completion status of CHECK CONDITION The ILLEGAL REQUEST Sense Key and Invalid Field in Parameter List Error Code is set in the Sense Data Parameter List Length The Parameter List Length specifies the length in bytes of the MODE SELECT parameter list that is transferred from the Initiator to the LaserDrive A Parameter List Length of zero indicates that no data is transferred The LaserDrive accepts and validates mode select parameters up to the Parameter List Length specified in the CDB and according to the Page Specific Parameter Length in each page header Any multiple byte parameter field not completely supplied is in error The Sense Key is set to INVALID R
15. STATUS BYTE VALUE STATUS REPRESENTED 00H GOOD 02H CHECK CONDITION 04H CONDITION MET 08H BUSY 18H RESERVATION CONFLICT 22H COMMAND TERMINATED GOOD CHECK CONDITION CONDITION MET BUSY RESERVATION CONFLICT COMMAND TERMINATED This status indicates that the LaserDrive has successfully completed the command Any error exception or abnormal condition that causes sense data to be set will cause a CHECK CONDITION status The REQUEST SENSE command should be issued following a CHECK CONDITION status to determine the nature of the condition The MEDIA SCAN command will return this status when the search condition is satisfied The LaserDrive is busy This status is returned whenever the LaserDrive is unable to execute a command from an otherwise acceptable Initiator The LaserDrive responds to drive mechanism accessing commands with BUSY while a spin up or spin down is in progress BUSY is also returned when a command is in progress and this command cannot be stored for later execution e g disconnect not permitted The normal recovery action is to re issue the command later This status is returned whenever a SCSI device attempts to access the LaserDrive while it is reserved for another SCSI device see RESERVE and RELEASE UNIT commands The normal Initiator recovery action is to re issue the command later This status shall be returned whenever the LaserDrive terminates the current I O process after receipt of
16. terminated with CHECK CONDITION Status Sense data is generated with a Sense Key of ILLEGAL REQUEST and an Error Code of Invalid LUN DISCONNECT CONDITIONS The LaserDrive disconnects from the SCSI bus when it cannot use the bus to transfer information without delay unless disconnects are disabled Disconnects are disabled as described in the Identify message section The following LaserDrive disconnect conditions assume that disconnects are enabled The LaserDrive disconnects after accepting the command block if the command calls for physical action by the drive This includes READ SEEK and MOVE commands as well as START STOP without the Immediate bit WRITE commands do not disconnect before starting the transfer of data from the Initiator The LaserDrive disconnects within the data transfer phase if the Maximum Burst Length value is greater than zero and less than the number of data blocks specified in the command If the Mode Select parameter Maximum Burst Length is zero disconnects will not be attempted during the data transfer The LaserDrive disconnects after completing data transfers and when a delay is encountered before the completion of a command 97653978 H Page 25 SCSI COMMANDS AND STATUS DISCONNECT CONDITIONS PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 26 DRIVE COMMAND SET DRIVE COMMAND SET This section defines the SCSI command set implemented by the LaserDrive The LaserDrive commands s
17. 12 15 Number of Focus Faults C F 16 19 Number of Tracking Out of Limit Faults 10 13 20 23 Number of Transfer Faults 14 17 24 27 Number of C Clock Faults 18 1B 28 81 Number of Motor Speed Faults 1C 1F 32 35 Number of Read Timing Faults 20 23 36 39 Number of Read Power Too High Errors 24 27 40 43 Number of Read Power Initialization Errors 28 2B 44 47 Number of Maximum Seek Retries Exhausted 2C 2F 48 51 Number of Lost Track Crossing Errors 30 33 52 55 Number of Track Crossing Errors 34 37 56 59 Number of No Track Capture Errors 38 3B 60 63 Number of Header Errors 3C SF 64 67 Number of General Seek Errors 40 43 68 71 Number of Phase Lock Loop Lost Interrupts 44 47 72 75 Number of Focus Interrupts 48 4B 76 79 Number of Tracking Out of Limit Interrupts 4C 4F 80 83 Number of Synchronization Lost Interrupts 50 53 84 87 Number of Synchronization Error Interrupts 54 57 88 91 Number of Media Defect Interrupts 58 5B 92 95 Number of RWS Spun Down Errors 5C 5F 96 99 Number of DTO Retries 60 63 100 103 Number of DSP Timeout Errors 64 67 104 107 Number of Read Retries with Optimization 68 6B Disabled 108 111 Number of Read Retries with Timing Value 6C 6F Adjustments 112 Read Timing Average 70 113 Undefined 71 114 115 Number of CRC Uncorrectable Sectors 72 73 116 117 Number of Scan False DDets 74 75 PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE
18. COMMAND SET INQUIRY 12H Table 26 LD 6100 INQUIRY Data BIT 7 6 5 4 3 2 1 0 BYTE 00 Peripheral Device Type 04 01 RMB 1 Reserved 02 ISO Version 0 ECMA Version 0 ANSI Approved Version 2 03 Reserved Termio Reserved Response Data Format 2 1 04 Additional Length 1 FH 05 Reserved 06 Reserved 07 Reserved Sync 1 Reserved 08 Vendor Identification MSB L 09 Vendor Identification M 10 Vendor Identification S 11 Vendor Identification 12 Vendor Identification 13 Vendor Identification 14 Vendor Identification 15 Vendor Identification LSB 16 Product Identification MSB L 17 Product Identification D 18 Product Identification 19 Product Identification 6 20 Product Identification 1 21 Product Identification O 22 Product Identification O 23 Product Identification S 24 Product Identification E 25 Product Identification R 26 Product Identification 27 Product Identification tee 28 Product Identification 29 Product Identification d 30 Product Identification s 31 Product Identification LSB f 32 Product Revision Level MSB A 33 Product Revision Level O 34 Product Revision Level O 35 Product Revision Level LSB A NOTE AOOA bytes 32 35 are just an example of a Product Revision Leve
19. Code Qualifier ACCESS EVENT LOG ECH The ACCESS EVENT LOG command provides a means to access and or clear data accumulated in the LaserDrive log ACCESS EVENT LOG Command ECH BIT 7 6 5 4 3 2 1 0 BYTE 00 ACCESS EVENT LOG ECH 01 LUN Mode CLR OPT 02 Page Code 03 Reserved 04 Reserved 05 Log Offset MSB 06 Log Offset LSB 07 Allocation Length MSB 08 Allocation Length LSB 09 Reserved Mode A Mode bit of one activates the Page Code field and puts the LaserDrive in 6000 log mode A Mode bit of zero places the LaserDrive in 4000 log mode and the OPT field is activated with pages defined as they were in the LD 4100 LF 4500 SCSI Interface Specification CLR If the CLR bit is set all logs will be cleared except for the Drive Statistics Log and the Failure Analysis Log The Log Offset field will be ignored OPT The OPT bits select which portion of the 4000 log mode data is to be sent to the Initiator as indicated in Table 6 If any value is placed in the Page Code field the Mode field must be set Otherwise a CHECK CONDITION status will be returned with ILLEGAL REQUEST sense The Page Code field is defined in Table 7 Log Offset The Log Offset field can be used by systems that cannot transfer a log because it is too long By specifying an offset and an allocation length partial transfers of the log can be performed This feature can only b
20. End Test Number indicated in Table 42 The only valid test numbers for bytes 2 and 3 are 0 through 7 and they are defined in Table 43 An invalid test number will result in CHECK CONDITION status with the Sense Key set to ILLEGAL REQUEST The ASC will be 26 and the ASCQ will be 0 All tests require full magazines and doors closed on LF 6600 s and Ready LD 6100 s GOOD status on TEST UNIT READY command Table 43 Diagnostic Selftests TEST DESCRIPTION OF TEST 0 Power on selftest PCA Selftests DPR Communication Read Write Data Path OMA No op Baseplate and Spindle Motor Operation LF 6600 only Servo Control Systems NN ODO oO A T oO nm Read Performance 97653978 H Page 115 DRIVE COMMAND SET START STOP UNIT 1BH START STOP UNIT 1BH The START STOP UNIT command requests the LaserDrive to spin up and initialize for operation or spin down START STOP UNIT Command 1BH BIT 7 6 5 4 3 2 1 0 BYTE 00 START STOP UNIT 1BH 01 LUN 0 Reserved Immed 02 Reserved 03 Reserved 04 Reserved LoEj Start 05 Reserved Immediate Immed An Immediate Immed bit of one indicates that ending status is to be returned as soon as the command has been received and validated If the Immed bit is set all nonaccess commands will be accepted and executed Access commands will be accepted but will report a check conditi
21. If ATTN occurs during a MESSAGE IN phase MESSAGE OUT phase shall occur after the current MESSAGE IN byte has been acknowledged by the Initiator 5 If ATTN occurs during a SELECTION phase and before the Initiator releases the BSY signal MESSAGE OUT shall occur immediately after that SELECTION phase 6 If ATTN occurs during a RESELECTION phase MESSAGE OUT shall occur after the LaserDrive has received an ACK for its IDENTIFY message for that RESELECTION phase The Initiator must keep ATTN asserted if more than one byte is to be transferred The Initiator may negate the ATTN signal at any time however it shall not negate the ATTN signal while the ACK signal is asserted during a MESSAGE OUT phase Normally the Initiator negates ATTN while REQ is true and ACK is false during the last REQ ACK handshake of the MESSAGE OUT phase RESET CONDITION The RESET condition is used to immediately clear all SCSI devices on the bus This condition takes precedence over all other phases and conditions Any SCSI device may create the RESET condition by asserting RST for a minimum of a reset hold time During the RESET condition the state of all SCSI bus signals other than RST is not defined The LaserDrive does not create the RESET condition and never asserts the RST signal All SCSI devices will release all SCSI bus signals except RST within a bus clear delay of the transition of RST to true The BUS FREE phase always follows the RESET condition The A
22. Initiator asserts ATTN and the first message out is either MESSAGE PARITY ERROR or MESSAGE REJECT In this case both devices go to asynchronous data transfer mode for data transfers between each other For the MESSAGE PARITY ERROR case the implied agreement is re instated if a retransmittal of the second of the pair of messages is successfully accomplished If the LaserDrive receives a MESSAGE PARITY ERROR message after one retry attempt it terminates the retry activity This may be done by either changing to any other information transfer phase and transferring at least one byte of information or by going to the BUS FREE phase The Initiator must accept such action as aborting the negotiation and both devices will go to asynchronous data transfer mode for data transfers between the two devices If a parity error is detected during the receipt of an SDTR message sequence the LaserDrive will remain in the message out phase One retry will be attempted The implied synchronous agreement remains in effect until a power cycle BUS DEVICE RESET message is received a hard RESET condition occurs or the initiator devices elect to modify the agreement The default data transfer mode is asynchronous data transfer mode and is entered at power on after a BUS DEVICE RESET message or after a hard RESET condition NOTE A hard RESET condition occurs when the TEST switch is pressed a bus generated reset is received or a message reset or a SEND DIAGNOSTIC com
23. Logical Block Address MSB 03 Logical Block Address 04 Logical Block Address 05 Logical Block Address LSB 06 Reserved 07 Transfer Length MSB 08 Transfer Length LSB 09 Reserved Logical Block Address The Logical Block Address specifies the logical block where the write verify operation will begin Transfer Length The Transfer Length specifies the number of contiguous logical blocks of data to be transferred A Transfer Length of zero indicates no data to be transferred This is not considered an error condition Any other value indicates that number of logical blocks will be transferred The errors and conditions for the WRITE AND VERIFY command are the same as those for WRITE Refer to Table 45 in the WRITE Command section and the NOTE that follows the table 97653978 H Page 121 DRIVE COMMAND SET WRITE BUFFER 3BH WRITE BUFFER 3BH 10 BYTE WITH FIRMWARE DOWNLOAD OPTION The WRITE BUFFER command is used for diagnostics or for downloading microcode to the LaserDrive depending on the value of the Mode field in byte 1 WRITE BUFFER DIAGNOSTICS When implemented as a diagnostic tool the WRITE BUFFER command requests a transfer of data from the Initiator to the read write buffer and is used in conjunction with the READ BUFFER command WRITE BUFFER Command 3BH Diagnostics BIT 7 6 5 4 3 2 1 0 BYTE 00 WRITE BUFFER 3BH 01 LUN 0 Reserved Mod
24. Number of Header Errors 40 43 68 71 Number of General Seek Errors 44 47 72 75 Number of Phase Lock Loop Lost Interrupts 48 4B 76 79 Number of Focus Lost Interrupts 4C 4F 80 83 Number of Track Out of Limit Interrupts 50 53 84 87 Number of Synchronization Lost Interrupts 54 57 88 91 Number of Synchronization Error Interrupts 58 5B 92 95 Number of Write Sum Interrupts 5C 5F 96 99 Undefined 60 63 100 103 Number of Media Certification During Write 64 67 Failures 104 107 Number of RWS Spun Down Errors 68 6B 108 111 Number of Media Defect Interrupts 6C 6F 112 115 Number of DSP Sample Bad Errors 70 73 116 119 Number of DSP Timeout Errors 74 77 120 123 Number of Preamble Interrupts 78 7B 124 127 Number of Write Timing Adjustments 7C 7F 128 Reference Verify Level 80 PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 36 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 13 6000 Log Mode Logs Page 5 Side A Write Statistics Log Size 220 Continued BYTE DECIMAL DESCRIPTION BYTE HEX 129 Inner Zone Write Timing Offset 81 130 Outer Zone Write Timing Offset 82 131 143 Undefined 83 8F 144 147 Number of Write Power Adjustments 90 93 148 151 Number of DPR Interrupt Retries 94 97 152 155 Number of Quad Sum Faults 98 9B 156 159 Averaged Maximum Data Amplitude 9C
25. OF QUEUE TAG Out No No 0 22 ORDERED QUEUE TAG Out No No 0 23 IGNORE WIDE RESIDUE In No N A 0 24 2F RESERVED FOR 2 BYTE No No MESSAGE 30 7F RESERVED No N A 80 FF IDENTIFY In Out Yes Yes 0 2 3 Key M Mandatory Support 0 Optional Support N A Not Applicable In LaserDrive to Initiator Out Initiator to LaserDrive Initiator support of the indicated messages is required if any of the following SCSI features are to be used Synchronous Data Transfer Request only SCSI Bus Disconnect Reconnect 3 Data Transfer Retries DA message system activity including the features listed in these notes PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 12 LASER DRIVE SCSI CHARACTERISTICS MESSAGE SYSTEM SPECIFICATION Save Data Pointer 02H This message is sent from the LaserDrive to direct the Initiator to save a copy of the present active data pointer for the currently attached logical unit Restore Pointers 03H This message is sent from the LaserDrive to direct the Initiator to restore the most recently saved pointers for the currently attached logical unit to the active state Pointers to the command data and status locations for the logical unit shall be restored to the active pointers Command and status pointers shall be restored to the beginning of the present command and status areas The data pointer shall be restored to the value at the beginning of the data area in the absenc
26. Records 199 19C 413 419 Undefined 19D 1A3 PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 60 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 25 4000 Log Mode Logs OPT Value 3 Predictive Maintenance Statistics BYTE DECIMAL DESCRIPTION BYTE HEX 0 5 The Drive Serial Number ASCII 0 5 6 11 DPC Firmware Revision Level ASCII 6 B 12 17 RWS B Firmware Revision Level ASCII C 11 18 23 RWS A Firmware Revision Level ASCII 12 17 24 29 WOODI Firmware Revision Level ASCII 18 1D 30 35 Undefined 1E 23 36 41 Number of Spin Up Cycles 24 29 42 47 Number of Media Insertions 2A 2F 48 53 Number of Seek Retries 30 35 54 59 Number of Seek Operations 36 3B 60 65 Number of Seek Errors 3C 41 66 71 Number of Nonoptimum Focus Adjustments 42 47 72 77 Number of Relocation Sectors Left on Side A 48 4D 78 83 Number of Relocation Sectors Left on Side B 4E 53 84 89 Number of MM Raw Empty Sectors on Side A 54 59 90 95 Number of MM Raw Empty Sectors on Side B 5A 5F 97653978 H Page 61 DRIVE COMMAND SET INQUIRY 12H INQUIRY 12H The INQUIRY command requests parameter information about the LaserDrive be sent to the Initiator INQUIRY Command 12H BIT 7 6 5 4 3 2 1 0 BYTE 00 INQUIRY 12H 01 LUN 0 Reserved 02 Reserved 03 Reserved 04 Allocation Length 05 Reserved A
27. SPECIFICATION Page 40 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 15 6000 Log Mode Logs Page 7 Side A Read Statistics Log Size 420 Continued BYTE DECIMAL DESCRIPTION BYTE HEX 118 123 Undefined 76 7B 124 127 Read Ahead Cache Misses 7C 7F 128 131 Unused Cached Buffers 80 83 132 135 Number of Quad Sum Interrupts 84 87 136 139 Number of Successful Read Retries 88 8B 140 143 Number of Codeword Corrections 8C 8F 144 147 Number of ECC Behind Occurrences 90 93 148 151 Number of Read Commands Executed by This 94 97 RWS 152 155 Number of Read Qualify Command Retries 98 9B 156 159 Number of Sectors Read by This RWS 9C 9F 160 163 Number of Cached Reads AO A3 164 167 Number of Cached DMA s A4 A7 168 171 Number of Slow Host Incidents A8 AB 172 175 Number of Host Aborts Received AC AF 176 179 Number of Access Retries BO B3 180 183 Number of RWS Timeout Errors B4 B7 184 187 Number of Relocations Read B8 BB 188 191 Number of Wrong Control Record Type Errors BC BF 192 195 Number of Wrong Control Record Sequence C0 C3 Errors 196 199 Number of Total Bytes Corrected C4 C7 200 391 Correction Array of 48 Entries Each Entry is 4 C8 187 Bytes Each Entry Represents Number of Sectors Requiring N Bytes 1 48 of Correction 392 395 Number of Sectors Requiring No Correct
28. a Logical Unit Least Significant Byte Least Significant Digit Media Certification During Write The physical medium optical disk where data is stored Consists of a 300 mm 12 in diameter glass sandwich disk media within a protective enclosure The technique used to map bytes onto the media using a special code to ensure data integrity The LaserDrive employs a 4 15 modulation code for LM 4000 media and 1 7 RLL for the LM 6000 media Microprocessor Unit An integrated circuit that accepts and executes instructions with the capacity of delivering signals describing the status of those instructions Most Significant Byte Mean Time Between Failure Mean Time To Repair A 4 bit binary pattern representing half a byte of information Nonvolatile Random Access Memory That part of memory responsible for retaining some specific information when power is removed from the drive A lens system used to focus the laser beam on the media and direct the reflected beam to the quad detector Opto Mechanical Assembly which includes the actuator optics module and EEPROM that stores the servo parameters A true signal value Odd Parity The sum of true bits including parity is odd Even Parity The sum of true bits including parity is even Printed Circuit Assembly consisting of all active components mounted on a printed circuit board A peripheral which can be attached to and can respond on the SCSI 2 bus e g magnetic or optic
29. a TERMINATE I O PROCESS message 97653978 H Page 23 SCSI COMMANDS AND STATUS COMMAND EXAMPLES COMMAND EXAMPLES The following sections give examples of typical command processing in the SCSI environment SINGLE COMMAND EXAMPLE A typical operation on the SCSI bus is likely to include a single READ command to a peripheral device This operation is described in detail starting with a request from the Initiator This example assumes that no linked commands and no malfunctions or errors occur The Initiator has active pointers and a set of stored pointers representing active disconnected SCSI devices an Initiator without disconnect capability does not require stored pointers The Initiator sets up the active pointers for the operation requested arbitrates for the SCSI bus and selects the LaserDrive Once this process is completed the LaserDrive assumes control of the operation The LaserDrive obtains the command from the Initiator in this case a READ command The LaserDrive interprets the command and executes it In this case the LaserDrive gets the data from the peripheral device and sends it to the Initiator At the completion of the READ command the LaserDrive sends a status byte to the Initiator To end the operation the LaserDrive sends a COMMAND COMPLETE message to the Initiator DISCONNECT EXAMPLE In the previously mentioned single command example a time consuming physical seek may be necessary In order to improve syste
30. host adapters to manage the use of the SCSI bus In most cases messages are not directly apparent to the host computer software There are two electrical interface alternatives single ended and differential Single ended and differential devices are electrically different and cannot be mixed on the same bus The single ended configuration supports cable lengths of up to 6 m 19 5 ft The differential driver option supports cable lengths of up to 25 m 82 ft NOTE Plasmon LMS does not recommend single ended fast synchronous The LaserDrive implements all mandatory and extended set commands in the American National Standards Institute ANSI Small Computer Systems Interface SCSI 2 specification X3 131 1994 defined for write once read many times WORM devices and many of the optional commands The LaserDrive supports one Logical Unit Number LUN LUN 0 only on the SCSI bus SCSI Bus Parity generation is always performed and parity checking is selectable This device implements the hard reset option Reservation queuing is not supported The LF 6600 and LF 6602 implement all of the commands implemented by the LD 6100 Additionally the LF 6600 and LF 6602 implement commands which control and report status of the shuttle These additions are noted throughout this document 97653978 H Page 7 GENERAL DESCRIPTION PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 8 LASER DRIVE SCSI CHARACTERISTICS COMMAND
31. illustrations of all FRU s with an accompanying parts list Controlled seek during which the tracking actuator moves to the previous track at a specific sector once per rotation making the spiral track logically appear to be concentric circles A forward biased semiconductor junction used as the active injection medium Used for references that apply to the LD 6100 LF 6600 and LF 6602 Assembly including laser diode and lenses Logical Block Address A means to reference the blocks of the media A contiguous block numbering from 0 to the maximum address The addressing in SCSI 2 commands PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 130 GLOSSARY LD 6100 LED LF 6600 LF 6602 Logical Unit Logical Unit Number LUN LSB LSD MCDW Media Media Cartridge Modulation Code MPU MSB MTBF MTTR Nibble NVRAM Objective Lens OMA One Parity PCA Peripheral Device SCSI 2 Physical Block Address PLL Ports PROM RAM Read Write Channel The high performance dual actuator optical disk drive designed for standalone implementation or use within a jukebox Light Emitting Diode The LF 6600 is an LD 6100 optical disk drive specifically modified to accept media cartridges and operate as a cartridge autochanger The LF 6602 is a cabinet housing two LF 6600 drives A SCSI 2 physical or virtual device addressable through a Target A SCSI 2 encoded 3 bit identifier for
32. indicates that a modified binary scan algorithm will be used This binary search can be used over a mixed area of blank and written blocks as long as the requested size of blank or written blocks Number of Blocks Requested field is not satisfied within the mixed area The ASA assumes sequential use of the LBA space and is best suited for finding the high water mark in a user data area Directory and other media mapping areas should use the sequential scan provided the area size does not produce a significant increase in execution overhead Partial Results Acceptable PRA A Partial Results Acceptable PRA bit of zero indicates that the scan will not be satisfied until a contiguous set of blocks is found within the scan area which is greater than or equal in size to the number of blocks requested and meets the other criteria for the scan A PRA bit of one indicates that the scan may be satisfied by a contiguous set of blocks within the scan area which is less than the number of blocks requested and meets the other criteria for the scan In this case the LaserDrive will report the largest contiguous set of blocks in the scan area When the PRA bit is set the ASA bit cannot be set Ignore Errors If the Ignore Errors field is set to one the LaserDrive will treat media errors as nonblank and access errors as blank If this field is not set all errors will be reported when they are encountered 97653978 H Page 65 DRIVE COMMAND SET
33. is empty or not in the range of addresses assigned 1 6 the LF 6600 LF 6602 will return CHECK CONDITION status and set the Sense Key to ILLEGAL REQUEST 97653978 H Page 83 DRIVE COMMAND SET PARK BASEPLATES C9H PARK BASEPLATES C9H The PARK BASEPLATES command is a vendor unique command that will park the baseplates and prepare the drive for shipment PARK BASEPLATES Command C9H BIT 7 6 5 4 3 2 1 0 BYTE 00 PARK BASEPLATES C9H 01 LUN 0 Reserved 02 0x50 P 03 0x52 R 04 Ox4B K 05 Reserved If media is inserted between the baseplates when this command is received the command will be rejected and a CHECK CONDITION will be reported with a Sense Key of ILLEGAL REQUEST 05 with ASQ of ILLEGAL FUNCTION 22 If this command is executed on an LF6600 the baseplates will be parked and the shuttle will be moved to the HOME position Once the PARK BASEPLATES command is executed the drive must be powered down and prepared for shipment If the PARK BASEPLATES command is successfully executed and further use of the drive is desired the drive must be power cycled before continuation PREVENT ALLOW MEDIA REMOVAL 1EH The PREVENT ALLOW MEDIA REMOVAL command enables or disables the removal of media from the LaserDrive PREVENT ALLOW MEDIA REMOVAL Command 1EH BIT 7 6 5 4 3 2 1 0 BYTE 00 PRE
34. media Because the capacity is not known until the disk spins a NOT READY condition will cause this command to be rejected with a CHECK CONDITION status Sense Key of 02 and an ASC of 04 READ CAPACITY Command 25H BIT 7 6 5 4 3 2 1 0 BYTE 00 READ CAPACITY 25H 01 LUN 0 Reserved 02 Reserved 03 Reserved 04 Reserved 05 Reserved 06 Reserved 07 Reserved 08 Reserved 09 Reserved The READ CAPACITY command returns the Maximum Logical Block Address and Block Length in bytes of the logical unit The Block Length is always 400H 1024d The Maximum Logical Address value returned is B1F755H 11663189d The 8 bytes of READ CAPACITY data shown in Table 34 are sent by the LaserDrive during the DATA IN phase of the command Table 34 READ CAPACITY Data BYTE DESCRIPTION 0 Maximum Logical Block Address MSB Maximum Logical Block Address Maximum Logical Block Address Maximum Logical Block Address LSB Block Length MSB Block Length Block Length Block Length LSB oc AJOIN PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 88 DRIVE COMMAND SET READ DIAGNOSTIC LONG E8H The READ DIAGNOSTIC LONG command requests the LaserDrive transfer data plus Control and ECC bytes READ DIAGNOSTIC LONG is implemented as a vendor unique command READ DIAGNOSTIC LONG E8H READ DIAGNOS
35. message is sent from the Initiator to the LaserDrive to indicate that one or more bytes in the last message it received had a parity error In order to indicate its intentions of sending this message the Initiator asserts the ATTN signal prior to its release of ACK for the REQ ACK handshake of the message that has the parity error This provides an interlock so that the LaserDrive can determine which message has the parity error If the LaserDrive receive this message under any other circumstance it will signal a catastrophic error condition by releasing the BSY signal without any further information transfer attempt Should this occur during the course of a command the LaserDrive will create sense data with the ABORTED COMMAND Sense Key and an error code of Inappropriate Message Error Device Reset OCH This message is sent from an Initiator to direct the LaserDrive to clear all current commands on that SCSI device This message forces the SCSI device to an initial state with no operations pending for any Initiator Upon recognizing this message the LaserDrive shall go to the BUS FREE phase Terminate I O Process 11H This message is sent from the Initiator to the LaserDrive to advise the LaserDrive to terminate the current I O process without corrupting the media Upon successful receipt of this message and after emptying the LaserDrive data buffer the LaserDrive will terminate the I O process and return a COMMAND TERMINATED status The sens
36. to be successful when it detects the negation of ACK for the COMMAND COMPLETE message with the ATTN signal false NOTE The command may have been executed successfully or unsuccessfully as indicated in the status 97653978 H Page 11 LASER DRIVE SCSI CHARACTERISTICS MESSAGE SYSTEM SPECIFICATION Extended Message 01H This message is sent from either the Initiator or the LaserDrive as the first byte of a multiple byte message The LaserDrive supports only the SYNCHRONOUS DATA TRANSFER REQUEST SDTR extended messages Refer to the SDTR message section Table 1 Message Codes ane DESCRIPTION DIRECTION ane RCOEBIS ppt ants 00 COMMAND COMPLETE In Yes N A M 01 EXTENDED MESSAGE In Out Yes Yes 02 SAVE DATA POINTER In Yes N A 02 03 RESTORE POINTERS In Yes N A 0 04 DISCONNECT In Out Yes No 0 2 05 INITIATOR DETECTED ERROR Out N A Yes 0 06 ABORT Out N A Yes 0 07 MESSAGE REJECT In Out Yes Yes 0 3 08 NO OPERATION Out N A Yes 07 09 MESSAGE PARITY ERROR Out N A Yes 0 4 OA LINKED COMMAND COMPLETE In No N A 0B LINKED COMMAND COMPLETE In No N A WITH FLAG 0C BUS DEVICE RESET Out N A Yes 0 OD ABORT TAG Out N A No 0E CLEAR QUEUE Out N A No OF INITIATE RECOVERY In Out No No 10 RELEASE RECOVERY Out N A No s 11 TERMINATE I O PROCESS Out No Yes 0 12 1F RESERVED No N A 20 SIMPLE QUEUE TAG In Out No No 0 21 HEAD
37. will load the media specified by the Storage Address byte If a media from a different storage address is in the embedded drive it will automatically be unloaded If the Load bit is not set the media in the embedded drive will be returned to its original storage location and the shuttle will be positioned to the storage address If the Storage Address field is zero the shuttle will be moved to the Home position and the MRU Most Recently Used AutoLoad selection option will be updated if applicable see previous section LaserFile Media Status Page in MODE SENSE Immediate Immed An Immediate Immed bit of one indicates that ending status is to be returned as soon as the command has been received and validated If the Immed bit is set all nonaccess commands will be accepted and executed Access commands will be accepted but will report a check condition until the drive is ready The TEST UNIT READY command should be used to determine if the drive is ready before issuing an access command An Immed bit of zero indicates that status will not be returned until after the operation is completed If disconnect is allowed the LF 6600 LF 6602 will disconnect after validating the command and reconnect when the MOVE MEDIA command has completed Storage Address The Storage Address specifies the address in the shuttle that contains media to be loaded into the embedded drive values 1 6 If this command is received and the shuttle storage address
38. 0 defines the type of parameter values to be returned Table 30 Page Control Field Definition DB 7 DB 6 TYPE NUES SEE 0 0 Current Values 0 1 Changeable Values 1 0 Default Values 1 1 Saved Values Page Code The Page Code specifies which page or pages to return Page Codes are defined in Table 31 The format of supported pages are specified with the MODE SELECT command Table 31 Page Codes for MODE SENSE PA NEXT DESCRIPTION 00 Reserved 01 Read Write Error Recovery Parameters 02 Disconnect Reconnect Control Parameters 03 1F Reserved 20 Vendor Unique Parameters 21 LaserFile Media Sense Page 22 3E Reserved 3F Return All Supported Pages PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 76 DRIVE COMMAND SET MODE SENSE 1AH Allocation Length The Allocation Length specifies the maximum number of bytes that the Initiator has allocated for returned MODE SENSE data The LaserDrive terminates the DATA IN phase when Allocation Length bytes have been transferred or when all available MODE SENSE data has been transferred to the Initiator whichever is less An Allocation Length of zero indicates that no MODE SENSE data is transferred The LaserDrive Mode Sense Allocation Length must be 36 bytes or greater to return all supported pages 3FH option MODE SENSE DATA The Mode Sense data returned by the LaserDrive consists of a 4 byte header foll
39. 0 LF 6602 SCSI INTERFACE SPECIFICATION Page 70 DRIVE COMMAND SET MODE SELECT 15H The SCSI sense information bytes point to the last block within the read extent that required any of the recovery described previously The ACCESS EVENT LOG command can be used to determine the nature of the recovery For write commands a recovered error will be posted when a relocation is required in the write extent The SCSI sense information bytes will point to the last block relocated in the write extent In the absence of a relocation in the write extent a Spares Full Warning Sense Key 01 ASC 32 and ASCQ 00 may be posted to the host This will occur if the number of relocation sectors left on the side of media that is being written to is 100 or less Refer to the REQUEST SENSE command description for the relevant Sense Key and Error Code definitions DTE If the Disable Transfer on Error DTE bit is set the LaserDrive will terminate the data phase when a recovered error is detected If the DTE bit is not set the LaserDrive will not terminate the data phase when a recovered error is detected The PER bit must be set if the DTE bit is set Read Retry Count The Read Retry Count fields specify the number of times that the LaserDrive shall attempt its recovery algorithm during read operations This value is 16 and cannot be modified however values of 4 and 8 will not be rejected NOTE If an invalid mode for the error recovery combination is sent
40. 01 LUN 0 Reserved BLKVFY Reserved 02 Logical Block Address MSB 03 Logical Block Address 04 Logical Block Address 05 Logical Block Address LSB 06 Reserved 07 Verify Length MSB 08 Verify Length LSB 09 Reserved Blank Verif A Blank Verify BLKVFY bit of zero indicates that the blocks will be subjected to ECC If the verify encounters a blank sector the command terminates with a CHECK CONDITION status and the Sense Key is BLANK CHECK If the verify encounters a sector that cannot be corrected the command terminates with a CHECK CONDITION and the Sense Key is MEDIA ERROR A Blank Verify BLKVFY bit of one indicates that the blocks are attempted to be verified as blank If the verify is unsuccessful the command is terminated with a CHECK CONDITION status and the Sense Key is BLANK CHECK Logical Block Address The Logical Block Address specifies the logical block to begin the verify Verify Length The Verify Length specifies the number of contiguous logical blocks to be verified PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 118 DRIVE COMMAND SET WRITE 2AH 10 BYTE WRITE 2AH 10 BYTE This WRITE command requests the LaserDrive to write to the media all data transferred from the Initiator WRITE Command 2AH BIT 7 6 5 4 3 2 1 0 BYTE 00 WRITE 2AH 01 LUN 0 Reserved 02 Logical Block Address MSB 03 Logical Block Address 0
41. 2 475 CRC Syndromes 476 4D5 Syndromes 4D6 4D7 Codeword Syndromes Map 4D8 4D9 Unused System Control Data 4DA 7EF Undefined 7F0 7FF Buffer Pointers PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 90 DRIVE COMMAND SET READ DIAGNOSTIC PHYSICAL E9H READ DIAGNOSTIC PHYSICAL E9H The READ DIAGNOSTIC PHYSICAL Command is similar to READ 28H except a Physical Block Address is specified in the command instead of a logical block READ DIAGNOSTIC PHYSICAL Command E9H BIT 7 6 5 4 3 2 1 0 BYTE 00 READ DIAGNOSTIC PHYSICAL E9H 01 LUN 0 Reserved 02 Physical Address MSB 03 Physical Address 04 Physical Address 05 Physical Address LSB 06 Reserved 07 Transfer Length MSB 08 Transfer Length LSB 09 Reserved Physical Block Address The Physical Block Address is 4 byte signed hexadecimal number which specifies the PHYSICAL BLOCK contrasted with LOGICAL BLOCK A valid Physical Address is in the range of 0 to the Maximum Physical Address of a media MAXPHYS Use the READ SECTOR LOCATION with Maximum Logical Block Address MAXLBA to determine MAXPHYS Transfer Length The Transfer Length is the number of 2048 byte Physical Blocks that the Initiator wants to transfer The READ PHYSICAL Command will return 2048 bytes per sector in the same format as the READ DIAGNOSTIC LONG command D
42. 23 Number of Sectors Written Array 10words Byte 24 43 Number of Sectors Relocated Array 10 words Byte 44 45 Index 97653978 H Page 49 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 20 6000 Log Mode Logs Page C Media Management Statistics Logs Size 372 BYTE DECIMAL DESCRIPTION BYTE HEX SIDE A Media Management Layout 0 8 Media ID 0 8 9 Undefined 9 10 13 Raw Media Management Sectors Left A D 14 17 Relocations Left E 11 18 127 Undefined 12 7F SIDE B Media Management Layout 128 136 Media ID 80 88 137 Undefined 89 138 141 Raw Media Management Sectors Left 8A 8D 142 145 Relocations Left 8E 91 146 371 Undefined 92 173 Table 21 6000 Log Mode Logs Page D E Media Side A B Specific Disk Information Log Size 1024 BYTE DECIMAL DESCRIPTION BYTE HEX 0 8 Media ID 0 8 9 11 Date Media Was Tested 9 B 12 Media Testbed Number C 13 15 OMA Serial Number Used for Test D F 16 17 Write Energy Threshold WETH for Inner 10 11 Radius 18 19 WETH for Middle Radius 12 13 20 21 WETH for Outer Radius 14 15 22 23 Bad Sector Map bsm Count 16 17 24 1019 bsm Entries up to 166 entries formatted as 18 3FB follows 0 Track of Bad Sector 2 Number of Bad Sectors 4 Sector Where Bad Sectors Start 5 Error Type Code 1020 Sector Alignment 3FC 1021 Undefined 3FD 1022 1023 SDI Checksum 3FE 3FF
43. 31 2 Disk Information Recovery Read Only Mode 3 32 0 Spares Full 3 32 80 Maps 50 Full 3 32 81 Maps 709 Full 3 32 82 Maps 90 Full 3 02 0 Seek Did Not Complete 4 PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 104 DRIVE COMMAND SET REQUEST SENSE 03H Table 40 Additional Sense Codes Continued ADDITIONAL QUALIFIERS DESCRIPTION SENSE KEY SENSE CODES BYTE 13 BYTE 2 BYTE 12 03 0 Write Fault 4 1B 0 Synchronous Transfer Error 4 40 0 Diagnostics Failure 4 44 0 Controller Hardware Parity Error 4 44 80 Controller Detected Error 4 45 0 Reselection Failed 4 46 0 Soft Reset Failed 4 47 0 SCSI Bus Parity Error 4 53 0 Load Eject Failure 4 81 0 Invalid Reload Command SCSI Download 4 81 3 RWS PCA Type Unknown SCSI Download 4 81 4 DPC PCA Type Unknown SCSI Download 4 81 82 Nonredundant Reload SCSI Download 4 83 0 Write Calibration Required 4 89 0 Baseplate Shuttle Error 4 1A 0 Parameter List Length Error 5 20 0 Invalid Op Code 5 21 0 Invalid LBA 5 22 0 Illegal Function 5 22 83 Illegal SCSI Download Attempt new hardware 5 24 0 Illegal Bit Byte in CDB 5 25 0 Invalid LUN 5 26 0 Invalid Field in Parameter List 5 3D 0 Invalid Field in ID Message 5 53 2 Media Removal Prevented 5 28 0 Media Change May Have Occurred 6 29 0 Drive Reset Occurred 6 2A 0 Mode Select Parameter
44. 4 Logical Block Address 05 Logical Block Address LSB 06 Reserved 07 Transfer Length MSB 08 Transfer Length LSB 09 Reserved DISVFY Reserved Logical Block Address The Logical Block Address specifies the logical block where the write operation begins Transfer Length The Transfer Length specifies the number of contiguous logical blocks of data to be transferred For this command a transfer length of zero indicates that no data is to be transferred or written on the media This is not considered an error condition Any other value indicates that number of logical blocks will be transferred Disable Verify DISVFY The Disable Verify DISVFY field will prevent a verify pass from being performed if set otherwise a verify pass will always be performed for a write command giving it the same functionality as the Write with Verify command NOTE Since there is no verify pass performed if this option is selected the unrecoverable read error rate specified in the Product Specification is not supported If any of the following conditions occur this command is terminated with a CHECK CONDITION status and the Sense Key is set as indicated in Table 45 This table is not exhaustive 97653978 H Page 119 DRIVE COMMAND SET WRITE 2AH 10 BYTE Table 45 Write Sense Key Return CONDITION SENSE KEY HEX Invalid Logical Block Address ILLEGAL REQUEST 05 Target Reset Media Change or Contro
45. 43 68 71 Number of Write Power Interrupts 44 47 72 75 Number of Sync Error Interrupts 48 4B 76 79 Number of Sync Lost Interrupts 4C 4F 80 83 Number of Tracking Interrupts 50 53 84 87 Number of Focus Interrupts 54 57 88 91 Number of PLL Interrupts 58 5B 92 95 Number of Generic Seek Errors 5C 5F 96 99 Number of Header Errors 60 63 100 103 Number of No Track Capture Errors 64 67 104 107 Number of Track Crossing Errors 68 6B 108 111 Number of Lost Track Crossing Errors 6C 6F 112 115 Number of Seeks Failed After Maximum Retries 70 73 116 119 Number of Write Power Initialization Errors 74 77 120 123 Number of Write Power too High Errors 78 7B 124 127 Number of Pulse Width Errors 7C 7F 128 131 Number of Write Timing Faults 80 83 97653978 H Page 55 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 23 4000 Log Mode Logs OPT Value 1 Data Logged During Write Commands Continued BYTE DECIMAL DESCRIPTION BYTE HEX 132 135 Number of Motor Speed Faults 84 87 136 139 Number of Tracking Faults 88 8B 140 143 Number of Focus Faults 8C 8F 144 147 Number of Arbitrary Faults 90 93 148 151 Number of Command not Complete Errors 94 97 152 155 Number of Drive Configuration Errors 98 9B 156 159 Number of DSP Sample Bad Errors 9C 9F 160 163 Number of DSP Timeout Errors AO A3 164 167 Number of Preamble Interrupt
46. 47 Number of Times 4000 Media Detected 90 93 148 151 Number of Cartridge Insertions 94 97 152 155 Number of Times Media Write Protected 98 9B Detected 156 159 Number of Baseplate Close Commands 9C 9F Executed 160 163 Number of Baseplate Open Commands AO A3 Executed 164 167 Number of Media A Side on Channel A A4 A7 Detections 168 171 Number of DPR Interrupt Re issues A8 AB 172 191 Undefined AC BF 97653978 H Page 35 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 13 6000 Log Mode Logs Page 5 Side A Write Statistics Log Size 220 BYTE DECIMAL DESCRIPTION BYTE HEX 0 3 Number of Drive Not Configured Errors 0 3 4 7 Number of Command Not Completed Errors 4 7 8 11 Number of Arbitrary Faults 8 B 12 15 Number of Focus Faults C F 16 19 Number of Track Faults 10 13 20 23 Number of Transfer Faults 14 17 24 27 Number of C Clock Faults 18 1B 28 81 Number of Motor Speed Faults 1C 4F 32 35 Number of Writing Timing Faults 20 23 36 39 Number of Pulse Width Errors 24 27 40 43 Number of Write Power Too High Interrupts 28 2B 44 47 Number of Write Power Initialization Errors 2C 2F 48 51 Number of Maximum Seek Retries Exhausted 30 33 52 55 Number of Lost Track Crossing Errors 34 37 56 59 Number of Track Crossing Errors 38 3B 60 63 Number of No Track Capture Errors 3C 3F 64 67
47. 50 RCBM Fault 03 51 RCBM Fault 04 52 RCBM Fault 05 53 RCBM Fault 06 54 RCBM Fault 07 55 RCBM Fault 08 56 RCBM Fault 09 57 RCBM Fault 0A 58 RCBM Fault 0B 59 RCBM Fault 0C 5A RCBM Fault 0D 5B RCBM Fault OE 5C RCBM Fault OF 5D RCBM Fault 10 5E RCBM Fault 11 5F RCBM Fault 12 60 RCBM Fault 13 61 RCBM Fault 14 62 RCBM Fault 15 63 RCBM Fault 16 64 RCBM Fault 17 97653978 H Page 109 DRIVE COMMAND SET REQUEST SENSE 03H Table 41 6000 Byte 18 Error Codes Continued BYTE 18 ERROR CODES DESCRIPTION 65 PSI Mismatch 66 SDI Mismatch 67 Data Transfer Timeout 1 68 Data Transfer Timeout 2 69 Data Transfer Timeout 3 6A Data Transfer Timeout 4 6B Data Transfer Timeout 5 6C Data Transfer Timeout 6 6D Data Transfer Timeout 7 6E Data Transfer Count Error 1 6F Data Transfer Count Error 2 70 Data Transfer Count Error 3 71 Data Transfer Count Error 4 72 Data Transfer Count Error 5 73 Data Transfer Count Error 6 74 Data Transfer Count Error 7 75 Data Transfer Count Error 8 76 Data Transfer Count Error 9 77 Data Transfer Count Error 10 78 Data Transfer Count Error 11 79 Data Transfer Count Error 12 7A Data Transfer Count Error 13 7B Data Transfer Count Error 14 7C Data Transfer Count Error 15 7D LM 4000 LM 8000 Media detected when Enable 4K is off FF Controller Detected Error reference Sense Bytes 43D 44D PLASMON LMS LD 6100 LF 6600 LF 6602 S
48. 65 Init DPC Executions 61C 61D The log index is used to determine the last entry into the log as each log when filled will wrap back to the top and overwrite existing entries Each CDE LOG entry for a system CDE is a 2 byte value consisting of a CDE reference number designated by an 0 in the most significant nibble Each CDE log entry for an exception CDE is a 10 byte entry with a 2 byte entry containing the vector offset followed by 4 bytes containing the PC address followed by 4 bytes containing the fault address When multiple CDEs occur before the drive can report back to the host the CDE log entries will be as follows the first CDE is logged as normal all subsequent CDEs will logged with an 8 as the most significant nibble Each DIAG FAIL LOG entry is a 2 byte value consisting of a failed diagnostic test number in hex Each SENSE LOG entry is 9 bytes of SCSI data information in the following order OPCODE BYTE Sense Data Bytes 2 12 13 and 18 Media Serial number 4 bytes Only Sense Keys of 03 04 or OB will be recorded in the SENSE LOG as well as RCBM Faults which are identified by a Sense Data Byte 18 value in the range of OX4D through 0X64 For SCSI failures with Sense Key data values of 03 04 or OB the following format applies to each SENSE LOG entry Byte 1 OPCODE Byte Byte 2 Sense Data Byte 2 Byte 3 Sense Data Byte 12 Byte 4 Sense Data Byte 13 Byte 5 Sense Data Byte 18 Bytes 6
49. 8F 144 147 Number of ECC Behind Occurrences 90 93 148 151 Number of Read Commands Executed by This 94 97 RWS 152 155 Number of Read Qualify Command Retries 98 9B 156 159 Number of Sectors Read by This RWS 9C 9F 160 163 Number of Cached Reads AO A3 164 167 Number of Cached DMA s A4 A7 168 171 Number of Slow Host Incidents A8 AB 172 175 Number of Host Aborts Received AC AF 176 179 Number of Access Retries BO B3 180 183 Number of RWS Timeout Errors B4 B7 184 187 Number of Relocations Read B8 BB 188 191 Number of Wrong Control Record Type Errors BC BF 192 195 Number of Wrong Control Record Sequence C0 C3 Errors 196 199 Number of Total Bytes Corrected C4 C7 200 391 Correction Array of 48 Entries Each Entry is 4 C8 187 Bytes Each Entry Represents Number of Sectors Requiring N Bytes 1 48 of Correction 392 395 Number of Sectors Requiring No Correction with 188 18B ECC 396 399 Number of Read Retries 18C 18F 400 403 Number of Uncorrectable 4000 Control Records 190 193 404 407 Number of Error Detection and Correction ASIC 194 197 Parity Errors 408 411 Number of Buffer Manager Parity Errors 198 19B 412 415 Number of ECC Uncorrectable Sectors 19C 19F 416 419 Number of 4000 Control Records Requiring 1A0 143 Correction 1 If read ahead is enabled this field will not reflect the number of sectors transferred to the host 97653978 H Page 43 DRIVE COMMA
50. 9 Media Serial Number PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 48 DRIVE COMMAND SET ACCESS EVENT LOG ECH For all RCBM Faults the following format applies to each SENSE LOG entry Byte 1 DPC Extended Status BYTE 153d Byte 2 DPC Extended Status BYTE 154d Byte 3 DPC Extended Status BYTE 155d Byte 4 DPC Extended Status BYTE 156d Byte 5 Sense Data Byte 18 Byte 6 DPC Status BYTE 125d Byte 7 DPC Status BYTE 135d Byte 8 DPC Status BYTE 132d Byte 9 WOODI copy of DPC Status BYTE 132d Each RELOC LOG entry is 3 bytes of information in the following order Byte 1 Relocation Cause RELOCATION CAUSE DEFINITION DO CRC UNCORRECTABLE ERROR EX VERIFY FAILURE WHERE X BYTES IN ERROR FO RESERVED FA PLL ERROR F2 SEEK ERROR F3 DEFECT ERROR F4 FOCUS ERROR F5 TRACKING ERROR F6 WRITE SUM ERROR F7 MCDW ERROR F8 SYNC LOST ERROR F9 SYNC ERROR FA HEADER ERROR FB DMA START ERROR FC BOS SYNC ERROR FD LASER POWER ERROR FE EDC HARDWARE ERROR FF RESERVED Byte 2 Sector Amplitude Byte 3 Sector Timing NOTE Sector Amplitude and Timing are general reference numbers and do not have upper or lower control limits The CDE SCSI Activity Log follows the exact format of the SCSI Activity Log AEL page 9 The SCSI Bus Reset SALOG follows the exact format of the SCSI Activity Log AEL page 9 Each Dynamic RELOC Log is 46 bytes of information in the following format Byte 1 4 Rate Byte 4
51. ACTIVE LOGICAL UNIT 25 SELECTION OF A LOGICAL UNIT 25 DISCONNECT CONDITIONS 25 DRIVE COMMAND SET 27 ACCESS EVENT LOG ECH 28 INQUIRY 12H 62 MEDIA SCAN 38H 65 MODE SELECT 15H 68 READ WRITE ERROR RECOVERY PAGE 70 DEVICE DISCONNECT RECONNECT PARAMETERS 71 VENDOR UNIQUE PARAMETERS 72 LASERFILE MEDIA STATUS PAGE LF 6600 LF 6602 ONLY 75 MODE SENSE 1AH 76 MODE SENSE DATA 77 MODE SENSE PAGES 78 CURRENT VALUES 82 CHANGEABLE VALUES 82 DEFAULT VALUES 82 SAVED VALUES 82 MOVE MEDIA 02H LF 6600 LF 6602 ONLY 83 PARK BASEPLATES C9H 84 PREVENT ALLOW MEDIA REMOVAL 1EH 84 READ 28H 10 BYTE 86 READ BUFFER 3CH 10 BYTE 87 READ CAPACITY 25H 88 READ DIAGNOSTIC LONG E8H 89 READ DIAGNOSTIC PHYSICAL E9H 91 READ SECTOR LOCATION E6H 92 RELEASE 17H 95 REQUEST SENSE 03H 96 RESERVE 16H 111 REZERO UNIT 01H 112 SEEK 10 BYTE 113 SEND DIAGNOSTIC 1DH 114 START STOP UNIT 1BH 116 TEST UNIT READY 00H 117 VERIFY 2FH 118 WRITE 2AH 10 BYTE 119 WRITE AND VERIFY 2EH 121 WRITE BUFFER 3BH 122 WRITE BUFFER DIAGNOSTICS 122 WRITE BUFFER DOWNLOAD OPERATION 123 WRITE BUFFER DOWNLOAD PROCEDURE 125 GLOSSARY 129 SCOPE SCOPE This document describes the physical and functional characteristics of the Small Computer System Interface SCSI for the LaserDrive LD 6100 the LaserFile LF 6600 RapidChanger and the LF 6602 RapidChanger The specification is provided for users system integrators and managers
52. Blank 1 byte O written 4 blank if command was VERIFY 2F Start 1 byte O stop 1 start if command was START STOP 1B PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 44 DRIVE COMMAND SET ACCESS EVENT LOG ECH MMinfo 1 byte bit 7 O unload 1 load bit 6 O nonimmed 1 immed bits 5 0 CDB Media Number if command was MOVE MEDIA 02 SDinfo 1 byte bit 7 0 not pf 1 pf bit 2 0 not selftest 1 selftest if command was a SEND DIAGNOSTIC 1D AELinfo 1 byte bit 7 0 not clear 1 clear bit 4 0 not mode 1 mode bits 3 0 page number if command was an ACCESS EVENT LOG EC For REQUEST SENSE commands 03 Valid bit and sense data format code FO If set Information bytes and Command specific information bytes will be entered in the Log total of 13 bytes 70 If not set Information bytes and Command specific information bytes will not be entered in the Log total of 5 bytes Sense key Information bytes Command specific information bytes Additional sense code Additional sense code qualifier LaserDrive status byte The SCSI status 1 byte will be entered into log after every command most significant bit will always be set Example 80 good status 82 check condition There may be asynchronous duplicate entries in the SCSI Activity Log due to MCLI action These can be decoded with the following information
53. Block Address The Logical Block Address specifies the logical block where the read operation will begin The Transfer Length specifies the number of contiguous logical blocks of data to be transferred For this command a Transfer Length of zero indicates that no data is to be transferred Read Ahead RA If the RA bit is set the LaserDrive will perform a read ahead operation when the read command that is being executed is complete This read ahead feature is only active following the read command in which this field is set If the read ahead option is enabled in a previous MODE SELECT command a read ahead will always follow a read regardless of the state of this field If any of the conditions as shown in Table 33 occur this command is terminated with a CHECK CONDITION status and the Sense Key is set This table is not exhaustive Table 33 Read Check Condition Sense Keys CONDITION SENSE KEY HEX Unrecoverable Read Error MEDIA ERROR 03 Unable to Read HARDWARE ERROR 04 Invalid Logical Block Address ILLEGAL REQUEST 05 Reset or Media Changed since the Last Command from this Initiator UNIT ATTENTION 06 Attempt to Read an Unwritten Block BLANK CHECK 08 Message Protocol or SCSI Data Transfer Error ABORTED COMMAND 0B On a successful read the sense information bytes are set to the logical block address of the first block not read On an unsuccessful read the sen
54. CSI INTERFACE SPECIFICATION Page 110 DRIVE COMMAND SET RESERVE 16H RESERVE 16H The RESERVE command is used to reserve the LaserDrive for the exclusive use of the Initiator This command requests that the LaserDrive be reserved for the exclusive use of the Initiator until released A unit reservation is released by a RELEASE command 17H from the same Initiator that made the reservation by a BUS DEVICE RESET message from any Initiator a RESET condition or a power off on cycle A logical unit reservation is not allowed if the unit is reserved by another Initiator In this case the drive responds by returning RESERVATION CONFLICT status It is permissible for an Initiator to reserve a logical unit that is currently reserved by that Initiator RESERVE Command 16H BIT 7 6 5 4 3 2 1 0 BYTE 00 RESERVE 16H 01 LUN 0 3rd Party Third Party Device ID Reserved 02 Reserved 03 Reserved 04 Reserved 05 Reserved Third Party Reservation 3rd Party When the Third Party Reservation bit 3rd Party is set to zero a third party reservation is not requested If set to one this field reserves the LUN for the Third Party Device and causes any subsequent command issued by the Third Party Device to be executed according to the mode parameters in effect for the Initiator sending this command Third Party Device ID Third Party Device ID is the SCSI Bus ID of the device referred to if the Third P
55. DI using multiple WRITE BUFFER commands transferring one 32K file at a time The data download process must be successfully completed prior to executing the microcode download Then using a single WRITE BUFFER command the microcode download will download all required PCA s of the LaserDrive using the firmware information contained in the WOODI data buffer The previous process may be required more than once depending upon which PCA s need upgrading Mode This field must be programmed to one of the two values shown in the following list Any other value will result in a CHECK CONDITION Status with an ILLEGAL REQUEST sense key reported on a subsequent REQUEST SENSE command Mode Value Vendor Specific Data Download 1 Microcode Download 5 Buffer ID This field has two definitions determined by the value selected in the mode field If the mode field is set to five the buffer ID field is reserved i e all zero s If the mode field is a one the buffer ID is defined as shown here BIT 7 6 5 4 3 2 1 0 BYTE 02 Reload Reserved WOODI RWS A RWS B DPC 97653978 H Page 123 DRIVE COMMAND SET WRITE BUFFER 3BH Field Definition Reload Set this bit to one to download microcode that is at the same firmware revision level The LaserDrive will not download a firmware revision that is the same as the one already in the LaserDrive unless this bit is set If this bit is not set bits 0 3 must b
56. E 2A Spin Button Fault Abort Mismatch Spin Spin Reset Down Down 43 44 CDE Ref Number 2B 2C 45 RTPM Side 2D 46 49 Media Serial Number 2E 31 50 Undefined 32 RWS A Status 51 Last Command Status 33 52 RWS Invalid Command Security Stop Undefined 34 Spun up Command Not Bit Set Line Completed Active 53 Clock RPP Read Tracking Focus Motor Transfer General 35 Watch Cal Timing Fault Faults Speed Off Track Fault Bit Dog Fault Fault Fault Has Timer Occurred Fault 54 Laser High Laser Laser Laser Laser Laser Laser Laser 36 Power Status Status Status Status Status Status Status Fault Power Forward Write Write Pulse Read Read Supply Sense Power Power Width Power Power Fault Fault Init Too High Error Too High Init Failed Failed 55 Drive Data PLL 12V 5V Tempera 37 Configured in Sync Undefined Supply Supply ture Change Change Changed 56 Max No No Track Undefined Seek Undefined Tracking Seek 38 Seek Header Capture Error Initialized Completed Retries 57 Undefined RWS RWS Undefined Headers No DMA Undefined 39 Spun Up Calibrated Sector Valid Start Interrupts Valid 58 DSP Servo DSP Undefined BOS Sync Write 3A Disqualify Timeout Error Timing Adjusted PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 98 DRIVE COMMAND SET R
57. EQUEST the Error Code is set to Invalid Field in Parameter List and no pages are changed The MODE SELECT parameter list shown in Table 28 contains a 4 byte header followed by zero or more pages of parameters or an 8 byte block descriptor followed by zero or more pages of parameters If a MODE SELECT command is terminated with a completion status other than GOOD the LaserDrive does not modify operating parameters The contents of the media type field is 02H This indicates a WORM media type The default media type value of zero will also be accepted However any subsequent Mode Sense will always report Media Type as 02 PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 68 DRIVE COMMAND SET MODE SELECT 15H Table 28 MODE SELECT Parameter List BIT 7 6 5 4 3 2 1 0 BYTE 00 Reserved 01 Media Type 00H or 02H 02 WP Reserved EBC 03 Block Descriptor Length 0 or 8 BLOCK DESCRIPTOR 00 Reserved 01 Number of Blocks 00H MSB 02 Number of Blocks 00H 03 Number of Blocks 00H LSB 04 Reserved 05 Block Length MSB 00H 06 Block Length 04H 07 Block Length LSB 00H PAGE S Write Protect WP A Write Protect WP bit of one or zero may be entered If zero the Laser Drive will be write enabled If set the Laser Drive will be write protected Enable Blank Check EBC An Enable Blank Check EBC of one or zero may
58. EQUEST SENSE 03H Table 38 Extended Sense Format Continued BYTE al 7 6 5 4 3 2 1 0 BYTE DECIMAL HEX 59 Write Servo Sync Error Sync MCDW Tracking Focus PLL 3B Power Defect Interrupt Lost Interrupt Interrupt Interrupt Interrupt Sum Interrupt to Media Interrupt 60 Number of Seek Retries 3C 61 Last Command Completed 3D 62 Last Command Received 3E 63 66 Undefined BF 42 RWS A Extended Status 67 Transfer Start Track MSB 43 68 Transfer Start Track LSB 44 69 Transfer Start Sector 45 70 Transfer End Track MSB 46 71 Transfer End Track LSB 47 72 Transfer End Sector 48 73 Last Header MSB 49 74 Last Header LSB 4A 75 Last Header Sector 4B 76 Last Fault 4C 77 Fault Recovery in Progress 4D 78 Last DSP Command 4E 79 DSP Command Failure 4F 80 RPP Average 50 81 TPP Average 51 82 Mirror Bias 52 83 Mirror Bias Residual 53 84 Preamble Read Timing 54 85 Reference Track Amplitude 55 86 Average Read Amplitude 56 87 QSUM Regulated Fwd Sense 57 RWS B Status 88 Last Command Status 58 89 RWS Invalid Command Security Stop 59 Spun Up Command Not Bit Set Line Undefined Completed Active 90 Clock RPP Read Tracking Focus Motor Transfer General 5A Watch Cal Timing Fault Faults Speed Off Track Fault Bit Dog Fault Fault Fault Has Timer Occurred Fault 97653978 H Page 99 DRIVE COMMAND SET REQUEST SENSE 03H Tab
59. GNOSTIC command Lanquage The Language Field specifies which language will be displayed on the DOC display The following options are available OPTION LANGUAGE 0 English 1 French 2 German The default language value is zero English RTPM The Real Time Performance Monitor RTPM will enable the LaserDrive to monitor write performance on the fly This monitor cannot be disabled However setting this field to zero will clear any existing violation and re enable write capability If the RTPM bit is set and the percentage of relocations is high the LaserDrive will return a CHECK CONDITION status on the first poor performance write with the Sense Key set to HARDWARE ERROR the ASC set to Controller Hardware Parity Error and byte 18 set to 39H This condition can be caused by a drive hardware failure or contaminated media After the 04 44 39 is returned to the host any further write commands to the drive will return CHECK CONDITION status with the Sense Key set to HARDWARE ERROR the ASC set to Controller Hardware Parity Error and byte 18 set to 38H until the RTPM condition is cleared This condition may be cleared via the DOC through the Clear RTPM or the Clear NVRAM options This condition may also be cleared via mode select by setting the RTPM bit to zero 97653978 H Page 73 DRIVE COMMAND SET MODE SELECT 15H The default RTPM value is zero The LaserDrive will inform the host of poor write performance via the RTPM if
60. I 0100 4 DPC 0010 2 RWS B 0001 1 RWS A 0000 0 No PCA s Each CSIB in the request sense data is defined as follows Location Definition Byte 8 Scheduled PCA s Byte 9 Attempted PCA s Byte 10 Failed PCA Byte 11 Retry PCA s or Failure Code Scheduled PCA s Are the PCA s that were identified for download Attempted PCA s Are the PCA s that actually had a download attempted Failed PCA s Are the PCA s that were attempted but failed after 3 retries Retry PCA s Only valid if there were no failed PCA s Shows which PCA s required a retry Failure Code Only valid if there is a failed PCA Give the reason for the download failure as defined in the following failure codes Code Hex Definition WOODI detected file byte count error End of File not found WOODI detect PCA byte count error Data record count to large Number of program records mismatch Firmware revision mismatch RWS DPC EEPROM failed to erase RWS or DPC failed record program Invalid command to RWS or DPC Checksum error from RWS or DPC OU O U P O N o FR o nm PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 126 DRIVE COMMAND SET WRITE BUFFER 3BH CSIB EXAMPLES GOOD Status After a successful microcode download the following 18 bytes of request sense data are returned FO 00 00 00 00 00 00 F7 03 03 00 01 00 00 00 00 00 00 This indicates that both RWS PCA s were successfully downloaded but the RWS A PCA just required more than one atte
61. LF 6600 Top View The presence of media at the various addresses in the shuttle can be sensed This data is available to an Initiator using the Media Sense page as shown in Table 32 for the MODE SENSE command This page will not be returned for the LD 6100 MODE SENSE command Table 32 Mode Sense Media Status Page 21H LF 6600 LF 6602 Only BIT 7 6 4 3 1 0 BYTE 00 PS 1 Reserved Page Code 21H 01 Parameter Length 02H 02 AutoLoad Selection Reserved Media Loaded Field 03 Door Reserved Storage Address Field Open AutoLoad Selection The AutoLoad Selection field is defined in Mode Select The default is 1 slot 1 BITS 4 6 NO of WD oco ADDRESS Home Position Slot 1 Slot 2 Slot 3 Slot 4 Slot 5 Slot 6 MRU Most Recently Used 97653978 H Page 81 DRIVE COMMAND SET MODE SENSE 1AH Media Loaded Field The Media Loaded Field indicates which media is currently loaded A value of 0 indicates that no media is loaded in the drive Door Open If the Door Open bit is set the Storage Address Field will not contain valid information Storage Address The Storage Address field is a bit significant field indicating which storage addresses contain media as indicated here BIT ADDRESS 0 1 1 2 2 B 3 4 4 5 5 6 If a bit is set media is present at that address If a media is loaded into the baseplates it will still be shown as present in this field as well as
62. MEDIA SCAN 38H The following Media Scan examples with the ASA mode bit will report incorrectly for cases 1 and 2 and correctly for case 3 Media Scan parameters Start LBA 0 Written block search 0 search for blank Number of blocks requested 2 Number of blocks to scan 10 Case 1 Binary Search Result B A wi eiesiwiwie elwiele LBA 0 1 2 3 4 5 6 7 8 A Condition met Move scan in for written to blank boundary B Condition not met Mixed area Result Incorrect LBA 5 will be returned instead of 1 Case 2 Binary Search Result A B wieiei wiwi wiwi e ee LBA 0 1 2 3 4 5 6 7 8 A Condition not met Move scan out for written to blank boundary B Condition met Result Incorrect LBA 7 will be returned instead of 1 Case 3 Binary Search Result C B A wj ej sj sejejajejej aj be LBA 0 1 2 3 4 5 6 7 8 9 A Condition met Move scan in for written to blank boundary B Condition met Move scan in for written to blank boundary C Condition met Result Correct PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 66 DRIVE COMMAND SET MEDIA SCAN 38H The logical block address specifies the first logical block of the scan area The Parameter List Length specifies the length in bytes of the parameter list that shall be transferred during the DATA OUT phase A parameter list length of zero indicates that the number of blocks requested field has a v
63. NATED status The sense key will be set to NO SENSE and the additional sense code and qualifier will be set to O PROCESS TERMINATED PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 14 LASER DRIVE SCSI CHARACTERISTICS MESSAGE SYSTEM SPECIFICATION Identify 80H to FFH These messages are sent by either the Initiator or the LaserDrive to establish the physical path connection between an Initiator and the LaserDrive for a particular logical unit The logical unit number addresses one of up to eight physical or virtual devices attached to the LaserDrive as indicated in the following bit definitions Bit 7 This bit shall be set to one to distinguish these messages from other messages Bit 6 This bit is set to one by the Initiator to grant the LaserDrive the permission to initiate disconnection If this bit is zero the LaserDrive shall not disconnect Bits 5 3 Reserved Bits 2 0 These bits specify a logical unit number in the LaserDrive Only one logical unit number shall be identified for any one selection sequence a second IDENTIFY message with a new logical unit number shall not be issued before the bus has been released BUS FREE phase The Initiator may send one or more IDENTIFY messages during a selection sequence However the logical unit number in any additional IDENTIFY messages shall be the same as the logical unit number specified in the first IDENTIFY message sent by the Initiator The LaserDrive can support
64. ND SET ACCESS EVENT LOG ECH The SCSI Activity Log is composed of two parts a Mode Sense Parameters section and a 256 byte FIFO buffer reflecting SCSI activity Table 17 6000 Log Mode Logs Page 9 SCSI Activity Log Size 266 BYTE DECIMAL DESCRIPTION BYTE HEX 0 Mode Sense Header Byte 2 0 Mode Sense Page 20 Byte 2 1 Mode Sense Page 20 Byte 3 Mode Sense Page 21 Byte 2 Mode Sense Page 1 Byte 2 oa C n oa C rnNg Mode Sense Page 1 Byte 3 6 7 Mode Sense Page 2 Bytes 10 11 6 7 8 9 SCSI Log Index indicates last log entry 8 9 10 265 SCSI Log Size 256 A 109 SCSI Log Data will be entered into the SCSI log in the following order A Reset will be a two byte entry The first byte is a reset type listed in Table 18 the second byte is always an FFH with a Reset Entry Table 18 Reset Description BYTE RESET TYPE 03 Power on 04 Selftest Switch or SEND DIAGNOSTIC Command 06 SCSI Bus Reset 07 Bus Device Reset Message 08 CDE Reset There will be a 2 byte embedded code reference number between the 08 and the FF bytes SCSI Opcode will be a one byte entry for any command Additional bytes to follow Opcode depending on command are LBA 4 bytes If command was a READ SEEK WRITE VERIFY or MEDIA SCAN Length 2bytes If command was a READ WRITE or VERIFY Prevent 1 byte O allow 1 prevent if command was PAMR 1E
65. NS The following sections describe some exceptions errors associated with command processing and command sequencing REDUNDANT COMMANDS TO AN ACTIVE LOGICAL UNIT An Initiator should never attempt to send a second command to the LaserDrive until the command in progress is terminated The Initiator is normally informed that a command is terminated when the LaserDrive returns a COMMAND COMPLETE message Termination may also result from a hard RESET condition If the LaserDrive receives a command from an Initiator and a command with the same LUN is already in progress for that Initiator both commands will be aborted The execution of both commands is stopped and CHECK CONDITION status is sent Sense data is prepared with an ABORTED COMMAND Sense Key and an Error Code of Overlapped Commands Attempted SELECTION OF A LOGICAL UNIT The logical unit for which a command is destined is specified by the IDENTIFY message or in the CDB if no IDENTIFY message was received The LaserDrive supports LUN O If an invalid logical unit is selected the LaserDrive takes the following action The CDB is accepted by the LaserDrive If the command is a REQUEST SENSE command the data returned will contain the Sense Data prepared for the previous command for this LUN If the command is the INQUIRY command the command will be executed normally The Peripheral Device Type Code Inquiry Data Byte 0 will be 7FH Device Not Present Any other command will be immediately
66. NSI SCSI standard defines two alternative responses by a Target to a RESET condition The LaserDrive implements hard reset handling Upon detection of the RESET condition the LaserDrive 1 Clears all incomplete commands 2 Releases all SCSI device reservations 3 Returns any SCSI device operating modes such as MODE SELECT and PREVENT ALLOW MEDIA REMOVAL commands to their saved or default conditions whichever is appropriate 4 Ensures that UNIT ATTENTION condition is set for all Initiators MESSAGE SYSTEM SPECIFICATION The message system allows communication between an Initiator and the LaserDrive for the purpose of interface management PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 10 LASER DRIVE SCSI CHARACTERISTICS MESSAGE SYSTEM SPECIFICATION MESSAGE PROTOCOL The LaserDrive implements the mandatory SCSI messages The first message sent by the Initiator after the SELECTION phase shall be either the IDENTIFY ABORT or BUS DEVICE RESET message The IDENTIFY message establishes the physical path for a particular logical unit specified by the Initiator After the RESELECTION phase the LaserDrive s first message is IDENTIFY This allows the physical path to be re established for the LaserDrive specified logical unit number Only one logical unit number can be identified for any one selection sequence a second IDENTIFY message with a new logical unit number must not be issued before the SCSI bus has been
67. OPT CAN BE VALUE CLEARED CAN BE DISABLED DESCRIPTION 0 Yes See Specific Option OPT Send Total Event Log Data Value in This Table The data will be sent in the order of Predictive Maintenance Statistics Read Data Log and then Write Data Log 1 Yes Yes Send Data Logged for Write Commands 2 Yes Yes Send Data Logged for Read Commands 3 Yes No Send Predictive Maintenance Statistics 97653978 H Page 29 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 7 Page Code Definition 6000 Log Mode PAGE aie CIE REED LOG RETURNED HEX 0 Yes Return Logs 0 A 18 336 Bytes 1 No Drive Statistics Log 100 Bytes 2 Yes Seek Statistics Log 32 Bytes 3 Yes Shuttle Motor and Baseplate Statistics Log 80 Bytes 4 Yes DPC Statistics Log 192 Bytes 5 Yes Write Statistics Log Side A 220 Bytes 6 Yes Write Statistics Log Side B 220 Bytes 7 Yes Read Statistics Log Side A 420 Bytes 8 Yes Read Statistics Log Side B 420 Bytes 9 No SCSI Activity Log 266 Bytes A Yes System Event Log 16 386 Bytes B No Failure Analysis Log 1566 Bytes C No Media Management Log 372 Bytes D No Media Specific Disk Information SDI Side A Log 1024 Bytes E No Media Specific Disk Information SDI Side B Log 1024 Bytes F No Media Product Specific Information PSI Log 256 Bytes Field values in these logs are circumstance dependent Interpretation o
68. PCA Installed 4D 78 New DPC PCA Installed 4E 79 New OMA Installed On Side A 4F 80 New OMA Installed On Side B 50 81 99 Undefined 51 63 97653978 H Page 31 DRIVE COMMAND SET PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 32 ACCESS EVENT LOG ECH Table 10 6000 Log Mode Logs Page 2 Seek Statistics Log Size 32 BYTE DECIMAL DESCRIPTION BYTE HEX 0 3 Seek Errors Side A 0 3 4 7 Seek Operations Side A 4 7 8 11 Seek Retries Side A 8 B 12 19 Undefined C 13 20 23 Seek Errors Side B 14 17 24 27 Seek Operations Side B 18 1B 28 31 Seek Retries Side B 1C 1F DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 11 6000 Log Mode Logs Page 3 Shuttle Motor and Baseplate Statistics Log Size 80 BYTE DECIMAL DESCRIPTION BYTE HEX 0 3 Number of Disk Information Reads on Spin Up 0 3 4 7 Number of Time Focus Could Not Be Achieved 4 7 on Spin Up 8 11 Number of Spin Ups 8 B 12 15 Number of Spin Up Failures C F 16 19 Number of 6600 Media Insertions 10 13 20 23 Number of DI Retries 14 17 24 35 Undefined 18 23 Valid for LF 6600 LF 6602 Only 36 39 Number of Times the Door Was Opened 24 27 40 43 Number of Times the Shuttle Was Initialized 28 2B 44 47 Number of Shuttle Movements 2C 2F 48 51 Number of Shuttle Movement Failures 30 33 52 55 Number of Media I
69. Reserved 05 Reserved The response of the LaserDrive to TEST UNIT READY is shown in Table 44 This table is not exhaustive Table 44 LaserDrive Test Unit Ready Response CONDITION DRIVE RESPONSE Media present and up to speed Command Ending Status GOOD Sense Key NO SENSE 00H Error Code No Additional Sense OOH Usual System Response Send Access Command UNIT ATTENTION condition yet to be reported Command Ending Status CHECK CONDITION Sense Key UNIT ATTENTION 06H Error Code Varies Usual System Response Note LaserDrive State Changes using System Byte Re issue TEST UNIT READY command No media present Command Ending Status CHECK CONDITION Sense Key NOT READY 02H Error Code Media Not Installed 3AH Usual System Response Issue Operator Prompt Drive is not ready Command Ending Status CHECK CONDITION 02H Sense Key NOT READY 02H Error Code Drive Not Ready 04H Usual System Response Re issue TEST UNIT READY command Drive is busy Command Ending Status BUSY 08H Sense Key Not Available Error Code Not Available Usual System Response Re issue TEST UNIT READY command 97653978 H Page 117 DRIVE COMMAND SET VERIFY 2FH VERIFY 2FH The VERIFY command requests that the LaserDrive verify the data on the media VERIFY Command 2FH BIT 6 4 3 2 0 BYTE 00 VERIFY 2FH
70. SCQ 80 81 or 82 PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 72 DRIVE COMMAND SET MODE SELECT 15H When a SEW value has been selected 1 3 the appropriate CHECK CONDITION will be reported during a WRITE or WRITE AND VERIFY command if a logical block must be relocated The default will be zero If the SEW value is not set the drive will not report a CHECK CONDITION with Spares Full Sense Key 3 ASC 32 ASCQ 00 when no more map entries are available on a side of media DEFDIS If Defect Reporting Disable DEFDIS is set to one access errors will not be reported during a VERIFY command with the BLKVFY Blank Verify option bit set If DEFDIS is set to zero access errors will be reported during the VERIFY command The DEFDIS default is zero DPDIS If the DOC Panel Disable DPDIS is set to one the DOC panel will be disabled and no Unit Attention will be generated when any of the switches are pressed However Denied will be displayed on the DOC panel If DPDIS is set to zero the DOC panel will be enabled The DPDIS default is zero NOTE When the DPDIS bit is set to one both the LOAD and TEST switches will be disabled and the user will not be able to load or unload media enter test mode or enter the Configuration mode via the DOC panel If this bit is saved on a MODE SELECT command with SP 1 the bit s status will be retained after a reset but will always be cleared after a power up or a SEND DIA
71. SCRIPTION BYTE HEX 129 Inner Write Timing Offset 81 130 Outer Write Timing Offset 82 131 143 Undefined 83 8F 144 147 Number of Write Power Adjustments 90 93 148 151 Number of DPR Interrupt Retries 94 97 152 155 Number of Quad Sum Faults 98 9B 156 159 Averaged Maximum Data Amplitude 9C 9F 160 163 Number of Static Relocations AO A3 164 167 Number of Write Commands Executed by RWS A4 A7 168 171 Undefined A8 AB 172 175 Number of Sectors Written by RWS AC AF 176 179 Number of Host Command Aborts Received BO B3 180 183 Number of Slow Host Occurrences B4 B7 184 187 Number of Attempted Overwrites B8 BB 188 191 Undefined BC BF 192 195 Number of DPR Verify Retries CO C3 196 199 Number of RWS Timeouts C4 C7 200 203 Number of Access Relocations C8 CB 204 207 Number of Verify Pass Relocations CC CF 208 211 Number of Unable to Write Errors DO D3 212 215 Number of Error Detection and Correction ASIC D4 D7 Parity Errors 216 219 Number of Buffer Manager ASIC Parity Errors D8 DB 97653978 H Page 39 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 15 6000 Log Mode Logs Page 7 Side A Read Statistics Log Size 420 BYTE DECIMAL DESCRIPTION BYTE HEX 0 3 Number of Drive Not Configured Errors 0 3 4 7 Number of Command Not Completed Errors 4 7 8 11 Number of Arbitrary Faults 8 B
72. SE command as specified by the PF bit and Page Control PC field READ WRITE ERROR RECOVERY PAGE The Read Write Error Recovery page specifies the error recovery parameters the Target uses during any command that performs a Read or Write operation to the media Read Write Error Recovery Page BIT 7 6 5 4 3 2 1 0 BYTE 00 PS 1 Reserved Page Code 01H 01 Parameter Length 2 02 AWRE 1 Reserved EER 1 PER DTE Reserved 03 Read Retry Count Default 16 PS The PS bit is set to indicate this page can be saved The default value for byte 2 is 88H Read Retry Count The Read Retry Count field will always return 16 Refer to MODE SELECT Read Write Error Recovery Page section for the selectable field definitions PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 78 DRIVE COMMAND SET MODE SENSE 1AH Device Disconnect Reconnect Page This page specifies the parameters that control the LaserDrive s SCSI bus usage during data transfer operations Disconnect Reconnect Parameters Page 02H BIT 7 6 5 4 3 2 1 0 BYTE 00 PS 1 Reserved Page Code 02H 01 Parameter Length OAH 02 Reserved 03 Reserved 04 Reserved 05 Reserved 06 Reserved 07 Reserved 08 Reserved 09 Reserved 10 Maximum Burst Length MSB 11 Maximum Burst Length LSB PS The PS bit is set to indicate this p
73. Sectors Requiring 6 Bytes of C0 C3 Correction 196 199 Number of Sectors Requiring 5 Bytes of C4 C7 Correction 200 203 Number of Sectors Requiring 4 Bytes of C8 CB Correction 204 207 Number of Sectors Requiring 3 Bytes of CC CF Correction 208 211 Number of Sectors Requiring 2 Bytes of DO D3 Correction 212 215 Number of Sectors Requiring 1 Byte of D4 D7 Correction 216 219 NumberofSectors Requiring NoCorrectionwith D8 DB ECC 220 223 Number of 4000 Control Records Requiring DC DF Correction 224 227 Number of Total Bytes Corrected E0 E3 228 231 Number of Record Sequence Errors E4 E7 232 235 Number of Control Record Type Mismatch E8 EB 236 239 Number of Relocated Sectors Read EC EF 240 243 Number of RWS Read Timeouts FO F3 244 255 Undefined F4 FF 256 259 Number of RWS Read Spin Downs 100 103 260 263 Number of Retries Due to Access Errors 104 107 264 267 Number of Slow Host Incidents 108 10B 268 271 Number of Cached Sectors Sent to Host 10C 10F 272 275 Number of Cached Sectors Read 110 113 276 279 Read Ahead Cache Misses 114 117 280 283 Unused Cached Buffers 118 11B 284 287 Number of Sectors Read 11C 11F 288 291 Number of Qualify Read Retries 120 123 292 295 Number of Logical Read Commands Executed 124 127 97653978 H Page 59 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 24 4000 Log Mode Logs OPT Value 2 Data Logged During Read Commands Continued
74. Spin Shuttle Commuta Motor Motor Motor 9A Cartridge Cartridge Control Present tion Pulse Hall 3 Hall 2 Hall 1 Guide Full In 0 fault 0 side B 155 Door Door Shuttle Insert Insert Pin Lower Upper Home 9B Open 2 Open 1 Door Vcmd Parked Door Door Lock Balanced Lock Lock 156 Sensor Decode Image 9C 157 254 Undefined 9D FE PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 102 DRIVE COMMAND SET REQUEST SENSE 03H Table 39 Sense Key Descriptions HEX SENSE KEY DESCRIPTION 0 NO SENSE Indicates that there is no specific sense key information to be reported for the designated logical unit This would be the case for a successful command 1 RECOVERED Indicates last command completed successfully with some recovery action ERROR performed by the Target 2 NOT READY Indicates that the logical unit addressed cannot be accessed The error code bytes enable a system to determine if operator action is necessary 3 MEDIA Indicates that the command terminated with a nonrecovered error condition ERROR probably caused by a media flaw or an error in the recorded data This Sense Key may also be returned if the Target is unable to distinguish between a flaw in the media and a specific hardware failure Sense Key 4H 4 HARDWARE Indicates that the Target detected an unrecoverable hardware failure while ERROR perform
75. TIC LONG Command E8H BIT 6 5 4 3 2 0 BYTE 00 READ DIAGNOSTIC LONG E8H 01 LUN 0 Reserved 02 Logical Block Address MSB 03 Logical Block Address 04 Logical Block Address 05 Logical Block Address LSB 06 07 Transfer Length MSB 08 Transfer Length LSB 09 Logical Block Address The Logical Block Address specifies the block where the read operation begins A valid Logical Block Address is in the range of 0 to the Maximum Logical Block Address MAXLBA of a media 97653978 H Page 89 DRIVE COMMAND SET Transfer Length The Transfer Length specifies the number of blocks of data to be read and transferred by the operation Each block is 2048 bytes in length A transfer length of zero indicates that no data be transferred The data passed during the READ LONG command is specified in Table 35 No ECC correction is performed on the data READ DIAGNOSTIC LONG E8H Table 35 READ DIAGNOSTIC LONG Command Data BYTE FIELD 0 3FF User Data ECC Data for 6000 Media 400 40F Control Record 410 413 CRC Bytes 414 473 ECC Parity Bytes 474 477 CRC Syndromes 478 4D7 Syndromes 4D8 4D9 Codeword Syndromes Map ECC Data for 4000 Media 400 403 CRC Bytes 404 453 ECC Parity Bytes 454 461 Control Record 462 46D Control Record Parity Bytes 46E 471 Unused 47
76. TIMEOUT LASER DRIVE SCSI CHARACTERISTICS This section discusses physical characteristics and logical architecture of SCSI as applied to the LaserDrive For general information concerning SCSI refer to the ANSI SCSI document X3 131 1994 COMMAND TIMEOUT Command timeout values are dependent on the command being executed A value of 60 sec is adequate for all commands except for those listed in the following table The values listed in the table should be used with the command length field in the CDB bytes 7 and 8 to calculate an adequate timeout when more than 60 sec is required These nominal values are only guidelines and do not represent transfer rates Actual time out values may significantly change due to hardware and media conditions COMMAND TYPE TIMEOUT VALUE Media Scan Command 3200 blocks sec Read Commands 1000 blocks sec Send Diagnostic Command 15 min Verify Commands 1200 blocks sec Write Commands 1150 blocks sec 2 Write Verify Commands 400 blocks sec This value was measured for a sequential scan of a completely blank media surface Overhead was added for processing and media management 2 These values do not include Map Read times SCSI BUS CONDITIONS The SCSI bus has two asynchronous conditions ATTENTION and RESET These conditions cause the LaserDrive to perform certain actions and can alter the phase sequence ATTENTION CONDITION The ATTENTION condition allows an Initiato
77. TION Page 20 SCSI COMMANDS AND STATUS COMMAND DESCRIPTOR BLOCK COMMAND DESCRIPTOR BLOCK A request to a peripheral device connected on the SCSI bus is performed by sending a Command Descriptor Block CDB to the LaserDrive For several commands the request is accompanied by a list of parameters sent during a DATA OUT phase See the specific commands for detailed information The CDB always has an operation code as the first byte of the command This is followed by an optional logical unit number command parameters if any and a control byte If there is an invalid parameter in a CDB the command is terminated without altering the media OPERATION CODE The operation code of the CDB has a group code field and a command code field The 3 bit group code field provides for 8 groups of command codes The 5 bit command code field provides for 32 command codes in each group Thus a total of 256 possible operation codes exist Operation codes are defined in following section Operation Code BIT 7 6 5 4 3 2 1 0 BYTE 00 Group Code Command Code The group code specifies one of the following groups GROUP BITZ BITS BITS COMMAND BYTES 0 0 0 0 Six 1 0 0 1 Ten 2 0 1 0 Ten new in SCSI 2 3 0 1 1 Reserved 4 1 0 0 Reserved 5 1 0 1 Twelve 6 1 1 0 Vendor Specific Six 7 1 1 1 Vendor Specific Ten Typical Command Descriptor Block for 6 Byte Com
78. VENT ALLOW MEDIA REMOVAL 1EH 01 LUN 0 Reserved 02 Reserved 03 Reserved 04 Reserved Prevent 05 Reserved Prevent A Prevent bit of one prevents removal of the media A Prevent bit of zero allows removal of the media If any Initiator has issued this command with the Prevent bit set then the media will not be allowed to be removed This is true even if other Initiators issue the command with a Prevent bit of zero If set by multiple Initiators the lock will be enforced until released by all Initiators The default state is to allow media removal zero If the Prevent bit has been set by any Initiator the user will be prevented from accessing Test mode or Configuration mode via the DOC panel If the LOAD and or TEST switches on the DOC are pressed the PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 84 DRIVE COMMAND SET PREVENT ALLOW MEDIA REMOVAL 1EH DOC panel will display Denied A UNIT ATTENTION with ASC equal to 5A and ASCQ equal to 00 will be generated However if the DPDIS bit is set in the Vendor Unique page 20H no UNIT ATTENTION will be generated when either switch is pressed If the SSDIS bit is set in the Vendor Unique page 20H a UNIT ATTENTION will be generated when the TEST switch is pressed and Denied will be displayed if either switch is pressed For the LD 6100 if media is not installed when this command is received the command will be rejected and a NOT READY Sense Key with an error co
79. actor times 4 is the transfer period The transfer period is the minimum time allowed between leading edges of successive REQ pulses and of successive ACK pulses to meet the LaserDrive requirements for successful reception of data The minimum transfer period is 25 or 100 nsec The maximum transfer period is 193 or 772 nsec Values outside of this range will be truncated to the nearest range value All transfer periods are rounded up to the next increment of 25 nsec e g 104 nsec is rounded up to 125 nsec and 772 nsec is rounded up to 775 nsec The REQ ACK offset is the maximum number of REQ pulses allowed to be outstanding before the leading edge of the first corresponding ACK pulse is received at the LaserDrive This value is chosen to prevent overflow conditions in the device s reception buffer and offset counter The maximum REQ ACK offset is OFH A REQ ACK offset of 0 results in an asynchronous data transfer mode The Initiator sets its values according to the rules contained in the previous paragraphs to permit it to receive data successfully If the LaserDrive can also receive data successfully with these values it returns the same values in its SDTR message If the LaserDrive requires a larger transfer period a smaller REQ ACK offset or both in order to receive data successfully it substitutes values in its SDTR message as required returning unchanged any value not required to be changed When transmitting data each device must respect
80. age can be saved The default value for maximum burst length is 900H this value is expressed in 512 byte blocks Refer to MODE SELECT Device Disconnect Reconnect Parameters section for selectable field definitions VENDOR UNIQUE PAGE This page gives the parameters specific to the LaserDrive Vendor Unique Page 20H BIT 7 6 5 4 3 2 1 0 BYTE 00 PS 1 Reserved Page Code 20H 01 Parameter Length 02H 02 MMSU SEW DEFDIS DPDIS Language 03 RTPM SYSLOG RA WPS SUA AutoSpin SDTR SSDIS NOTE On an LF 6600 LF 6602 AutoSpin cannot be disabled regardless of the value of the AutoSpin bit The AutoSpin bit only applies to an LD 6100 Refer to the MODE SELECT Vendor Unique Parameters section for definitions of these fields MMSU SEW DEFDIS DPDIS Language SYSLOG RA SUA AutoSpin SDTR SSDIS 97653978 H Page 79 DRIVE COMMAND SET MODE SENSE 1AH Real Time Performance Monitor RTPM The Real Time Performance Monitor RTPM bit is set to one if the LaserDrive is in a read only state due to a current RTPM condition This condition will also set the WP bit Write Protect Status WPS The Write Protect Status bit WPS is set to one if the Initiator selected Write Protect mode in a previous Mode Select This bit will be a zero if Write Protect was not selected by a previous MODE SELECT command This bit can be used to determine if a drive is write protected or a m
81. al disk drive printer or similar device A means to reference the location of a sector by a count of sectors starting with sector zero Phase Locked Loop A circuit which provides timing signals for the Read Write and Servo Channels The addressable access to a device e g SCSI 2 MPU ports Programmable Read Only Memory Random Access Memory The paths taken by read and write data signals through the LaserDrive electronics 97653978 H Page 131 GLOSSARY Reconnect SCSI 2 RFI ROM RWS PCA Sampled Servo SCSI 2 SCSI 2 Address SCSI 2 Device SCSI 2 ID Signal Assertion Signal Negation Signal Release Sync Target SCSI 2 Terminator Assembly SCSI 2 Transfer Period SCSI 2 WOODI PCA Zero The function that occurs when a Target selects an Initiator to continue an operation after a Disconnect Radio Frequency Interference Operational interference of electric devices caused by a strong uncontrolled electromagnetic field Read Only Memory Read Write Servo RWS PCA That part of the LaserDrive responsible for performing the servo read write and control functions of the drive Tracking and clocking information embedded in the disk Small Computer System Interface American National Standards Institute ANSI defined interface The unique address 0 7 assigned to a SCSI 2 Device This address is assigned and set in the SCSI 2 Device during system installation A host adapter peripheral c
82. alue of one and the number of blocks to scan field has a value of zero This condition shall not be considered an error MEDIA SCAN Parameter List BIT 7 6 5 4 3 2 1 0 BYTE 00 Number of Blocks Requested MSB 01 Number of Blocks Requested 02 Number of Blocks Requested 03 Number of Blocks Requested LSB 04 Number of Blocks to Scan MSB 05 Number of Blocks to Scan 06 Number of Blocks to Scan 07 Number of Blocks to Scan LSB Number of Blocks Requested The Number of Blocks Requested field specifies the number of blocks needed to meet the specified requirements The Number of Blocks Requested field if set to zero indicates that the scan shall not take place This shall not be considered an error condition Number of Blocks to Scan The Number of Blocks to Scan field specifies the length in blocks of the area to be scanned on the media The Number of Blocks to Scan field if set to zero specifies the length of the scan area to extend to the maximum LBA of the media If the scan is satisfied the command is terminated with a CONDITION MET status A REQUEST SENSE command should then be issued A REQUEST SENSE command following a satisfied MEDIA SCAN command shall 1 Return a Sense Key of EQUAL if the scan was satisfied by a contiguous set of blocks equal in size to the number of blocks requested Return a Sense Key of NO SENSE if the PRA bit is set and the scan was sat
83. andards Institute New York NY 97653978 H Page 5 SCOPE PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 6 GENERAL DESCRIPTION GENERAL DESCRIPTION The Small Computer System Interface SCSI standard defines an input output bus for interconnecting computers and peripheral devices SCSI is a local I O bus that can be operated over a wide range of data rates The primary objective of SCSI is to provide system integrators with an easy to use reliable industry standard peripheral device interface Other objectives include provision for device independence and interoperability and to move device dependent intelligence out to the peripherals NOTE The word LaserDrive as used in this document refers to the LD 6100 the LF 6600 and the LF 6602 f a feature applies specifically to a configuration then the appropriate model number is used The interface uses logical rather than physical addressing for all data blocks The LaserDrive implements SCSI commands that facilitate the writing of self configuring software drivers that can discover all necessary attributes without prior knowledge of specific peripheral characteristics such as storage capacity The SCSI protocols include provisions for the connection of multiple initiators and multiple targets SCSI bus arbitration is supported by the LaserDrive SCSI defines a message protocol for control of the interface These messages allow the peripherals and the
84. arty Reservation bit is set to one After the LaserDrive responds with GOOD status to a RESERVE any command other than an INQUIRY a REQUEST SENSE command a RELEASE command or a PREVENT ALLOW Media Removal command with the Prevent bit set to 0 from another initiator is rejected with RESERVATION CONFLICT status unless that initiator set the Third Party Device and Third Party Reservation bit 97653978 H Page 111 DRIVE COMMAND SET REZERO UNIT 01H The REZERO UNIT command requests an operation equivalent to seeking to logical block address zero REZERO UNIT 01H and one REZERO UNIT Command 01H BIT 6 5 4 3 2 1 0 BYTE 00 REZERO UNIT 01H 01 LUN 0 Reserved 02 Reserved 03 Reserved 04 Reserved 05 Reserved PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 112 DRIVE COMMAND SET SEEK 10 BYTE SEEK 10 BYTE The SEEK command 10 byte requests a seek to the track which contains the specified logical block address SEEK Command 10 Byte 2BH BIT 7 6 5 4 3 2 0 BYTE 00 EXTENDED SEEK 2BH 01 LUN 0 Reserved 02 Logical Block Address MSB 03 Logical Block Address 04 Logical Block Address 05 Logical Block Address LSB 06 Reserved 07 Reserved 08 Reserved 09 Side Reserved Side If the Side field is set to zero a logical seek will be executed If th
85. ata will be transferred unless the sector cannot be accessed If the sector is blank or not correctable the data will be followed by a check condition and the appropriate sense key is set A Transfer Length of zero indicates that no data be transferred 97653978 H Page 91 DRIVE COMMAND SET READ SECTOR LOCATION E6H READ SECTOR LOCATION E6H This command will provide the location of a sector in three formats The formats provided are Logical Block Address LBA Physical Block Address PBA Track Sector Address TSA In addition the side and zone of each sector will be provided The sector location input can also be in the three formats addressed above READ SECTOR LOCATION Command E6H BIT 7 6 5 4 3 2 1 0 BYTE 00 Read Sector Location Command E6H 01 LUN 0 Reserved Side Input Form 02 Location Field 03 Location Field 04 Location Field 05 Location Field 06 Reserved 07 Reserved 08 Reserved 09 Reserved Side The Side bit is only used if Input Form is track sector Side indicates which side the sector location is on Media side A is zero and media side B is 1 Input Form Input Form tells the LaserDrive which form the location field is in VALUE FORM 0 SCSI Logical Block Address LBA 1 Media Physical Block Address PBA 2 Media Track Sector Address TSA PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 92 DRIVE COMMAND SET Locatio
86. be entered The EBC default value is zero If set the LaserDrive will execute a pre read before a write operation to ensure the first block being written to is blank Block Descriptor Length The Block Descriptor Length specifies the length in bytes of the block descriptor This value must be zero if the drive is not ready If the drive is ready this value must be zero or eight A Block Descriptor Length of zero indicates that no block descriptor is included in the parameter list This is not considered an error The LaserDrive supports one block descriptor Number of Blocks The Number of Blocks field value must be zero This specifies that the Block Length specification that follows applies to the entire media Block Length The Block Length field specifies the length in bytes of each logical block of the LaserDrive logical unit The block length specified must be 1024 bytes 400H Each page descriptor specifies parameters for the LaserDrive to use for subsequent operations The selectable page codes for the LaserDrive are given in Table 29 The Parameter Length field specifies the length in bytes of the parameters that follow for the specified page 97653978 H Page 69 DRIVE COMMAND SET MODE SELECT 15H Table 29 Page Codes for the LaserDrive EO DESCRIPTION 00 Reserved 01 Read Write Error Recovery Parameters 02 Disconnect Reconnect Control Parameters 03 1F Reserved 20 Vendor Unique Parameters
87. by the Initiator the Target shall return CHECK CONDITION status with the Sense Key set to ILLEGAL REQUEST and the Additional Sense Code set to Invalid Field In Parameter List DEVICE DISCONNECT RECONNECT PARAMETERS This page specifies the parameters that control the LaserDrive s SCSI bus usage during data transfer operations Disconnect Reconnect Parameters Page 02H BIT 7 6 5 4 3 2 1 0 BYTE 00 Reserved Page Code 02H 01 Parameter Length OAH 02 Reserved 03 Reserved 04 Reserved 05 Reserved 06 Reserved 07 Reserved 08 Reserved 09 Reserved 10 Maximum Burst Length MSB 11 Maximum Burst Length LSB 97653978 H Page 71 DRIVE COMMAND SET MODE SELECT 15H Parameter Length The Parameter Length must be set to 10 OAH Maximum Burst Length The Maximum Burst Length gives the number of blocks the LaserDrive transfers on the SCSI bus before attempting to disconnect The LaserDrive transfers exactly this number of blocks on all but the final transfer of a command A value of zero indicates that the LaserDrive will not disconnect during the data transfer phase of commands The default value is 2304 900H Since burst length is expressed in increments of 512 bytes and the LaserDrive must transfer on 1024 byte boundaries the value must be an even number If an odd number is selected the LaserDrive will respond with a CHECK CONDITION status with the Sense Key se
88. ck of a command the Information Bytes contain the Logical Block Address requested in the command The Additional Sense Length specifies the number of additional sense bytes to follow For the LaserDrive this value is F7H 97653978 H Page 103 DRIVE COMMAND SET REQUEST SENSE 03H Additional Sense Error codes are defined in Table 40 These bytes provide additional information about the condition that caused CHECK CONDITION status Table 40 Additional Sense Codes ADDITIONAL QUALIFIERS DESCRIPTION SENSE KEY SENSE CODES BYTE 13 BYTE 2 BYTE 12 0 0 No Additional Sense Information 0 0 0 Reservation Conflict 0 0 6 Term IO Message Received 0 0 0 Read Recovery Required 1 0C 0 Write Relocation Required 1 32 0 Spare Full Warning 1 04 0 Drive Not Ready 2 04 3 Door Open LF 6600 LF6602 Only 2 04 40 Diagnostics Failure 2 04 80 Drive Not Ready Baseplates Parked 2 30 0 Incompatible Cartridge 2 31 0 Media Format Corrupted 2 3A 0 Media Not Present 2 03 0 Media Write Fault 3 09 0 Track Following Error 3 09 02 Focus Servo Error 3 10 0 ECC Error On Read 3 11 0 Unrecoverable Read Error 3 11 6 Unrecoverable Read Error Due to Control Record 3 Invalid 19 0 Alternate List Error 3 30 0 Attempted Write on 4000 Media 3 30 01 Attempted Invalid Command nonwrite on 4000 3 Media 31 0 Media Format Corrupted 3 31 1 Media Management Area Not Recovered 3
89. ck Capture Errors 38 3B 60 63 Number of Header Errors 3C SF 64 67 Number of General Seek Errors 40 43 68 71 Number of Phase Lock Loop Lost Interrupts 44 47 72 75 Number of Focus Interrupts 48 4B 76 79 Number of Tracking Out of Limit Interrupts 4C 4F 80 83 Number of Synchronization Lost Interrupts 50 53 84 87 Number of Synchronization Error Interrupts 54 57 88 91 Number of Media Defect Interrupts 58 5B 92 95 Number of RWS Spun Down Errors 5C 5F 96 99 Number of DTO Retries 60 63 100 103 Number of DSP Timeout Errors 64 67 104 107 Number of Read Retries with Optimization 68 6B Disabled 108 111 Number of Read Retries with Timing Value 6C 6F Adjustments 112 Read Timing Average 70 113 Undefined 71 114 115 Number of CRC Uncorrectable Sectors 72 73 116 117 Number of Scan False DDets 74 75 PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 42 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 16 6000 Log Mode Logs Page 8 Side B Read Statistics Log Size 420 Continued BYTE DECIMAL DESCRIPTION BYTE HEX 118 123 Undefined 76 7B 124 127 Read Ahead Cache Misses 7C 7F 128 131 Unused Cached Buffers 80 83 132 135 Number of Quad Sum Interrupts 84 87 136 139 Number of Successful Read Retries 88 8B 140 143 Number of Codeword Corrections 8C
90. command from the Initiator is in progress the LaserDrive creates sense data indicating an ABORTED COMMAND Sense Key Pending data and status for other Initiators is not cleared If a logical unit has not been identified the LaserDrive goes to the BUS FREE phase No status or ending message shall be sent for the operation It is not an error to issue this message to a logical unit that is not currently performing an operation for the Initiator Message Reject 07H This message is sent from either the Initiator or the LaserDrive to indicate that the last message it received was inappropriate or has not been implemented In order to indicate its intentions of sending this message the Initiator asserts the ATTN signal prior to its release of ACK for the REQ ACK handshake of the message that is to be rejected If the LaserDrive receives this message under any other circumstance it rejects this message When the LaserDrive sends this message it will change to MESSAGE IN phase and send this message prior to requesting additional message bytes from the Initiator This provides an interlock so that the Initiator can determine which message is rejected 97653978 H Page 13 LASER DRIVE SCSI CHARACTERISTICS MESSAGE SYSTEM SPECIFICATION No Operation 08H This message is sent from an Initiator in response to the LaserDrive s request for a message when the Initiator does not currently have any other valid message to send Message Parity Error 09H This
91. ctors Requiring 41 Bytes of 34 37 Correction 56 59 Number of Sectors Requiring 40 Bytes of 38 3B Correction 60 63 Number of Sectors Requiring 39 Bytes of 3C 3F Correction 64 67 Number of Sectors Requiring 38 Bytes of 40 43 Correction 68 71 Number of Sectors Requiring 37 Bytes of 44 47 Correction 72 75 Number of Sectors Requiring 36 Bytes of 48 4B Correction 76 79 Number of Sectors Requiring 35 Bytes of 4C 4F Correction 80 83 Number of Sectors Requiring 34 Bytes of 50 53 Correction 84 87 Number of Sectors Requiring 33 Bytes of 54 57 Correction 88 91 Number of Sectors Requiring 32 Bytes of 58 5B Correction 97653978 H Page 57 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 24 4000 Log Mode Logs OPT Value 2 Data Logged During Read Commands Continued BYTE DECIMAL DESCRIPTION BYTE HEX 92 95 Number of Sectors Requiring 31 Bytes of 5C 5F Correction 96 99 Number of Sectors Requiring 30 Bytes of 60 63 Correction 100 103 Number of Sectors Requiring 29 Bytes of 64 67 Correction 104 107 Number of Sectors Requiring 28 Bytes of 68 6B Correction 108 111 Number of Sectors Requiring 27 Bytes of 6C 6F Correction 112 115 Number of Sectors Requiring 26 Bytes of 70 73 Correction 116 119 Number of Sectors Requiring 25 Bytes of 74 77 Correction 120 123 Number of Sectors Requiring 24 Bytes of 78 7B Correction 124 127 Number of Sectors Requiring 23 Bytes
92. de of Cartridge Not Installed posted For the LF 6600 LF 6602 setting the Prevent bit will not allow movement of the shuttle to the home position thus preventing removal of the media If the Prevent bit is set and the Initiator attempts to move the shuttle to the home position a CHECK CONDITION will be reported with Sense Key 5 ASC 53 and ASCQ 2 This bit does not prevent the loading and unloading of cartridges that are stored in the shuttle PREVENT MEDIA REMOVAL can only be cleared by an ALLOW MEDIA REMOVAL command a SCSI bus reset or a power on cycle and can only be invoked in an LD 6100 when a cartridge is inserted and Ready in the drive For an LF 6600 LF 6602 the PREVENT MEDIA REMOVAL command can only be invoked if a media is in the drive the door is closed and the shuttle is not at the HOME position If a LaserDrive fault occurs when PREVENT MEDIA REMOVAL is enabled no intervention will be possible via the DOC 97653978 H Page 85 DRIVE COMMAND SET READ 28H 10 BYTE The READ command requests a transfer of data from the media to the Initiator READ 28H 10 BYTE READ Command 28H BIT 7 6 5 4 3 2 1 0 BYTE 00 READ 28H 01 LUN 0 Reserved 02 Logical Block Address MSB 03 Logical Block Address 04 Logical Block Address 05 Logical Block Address LSB 06 Reserved 07 Transfer Length MSB 08 Transfer Length LSB 09 Reserved RA Reserved Logical
93. e 02 Reserved 03 Reserved 04 Reserved 05 Reserved 06 Reserved 07 Allocation Length MSB 08 Allocation Length LSB 09 Reserved Mode The Mode field must be a 2 data only Allocation Length The Allocation Length field represents the number of sector blocks to be transferred to the buffer This value must be within the range of OH to 3EFH Any other Allocation Length value will result in a CHECK CONDITION status with a sense key of ILLEGAL REQUEST NOTE Due to hardware limitations the LaserDrive will transfer sector blocks rather than bytes in response to the Allocation Length of this command This is not SCSI 2 compliant PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 122 DRIVE COMMAND SET WRITE BUFFER DOWNLOAD OPERATION The download microcode function is implemented using the vendor specific mode and the download microcode mode of the WRITE BUFFER command WRITE BUFFER Command 3BH Download WRITE BUFFER 3BH BIT 7 6 5 4 3 2 1 0 BYTE 00 WRITE BUFFER 3BH 01 LUN 0 Reserved Mode 02 Buffer ID 03 Reserved 04 Reserved 05 Reserved 06 Reserved 07 Reserved 08 Reserved 09 Reserved The download microcode operation is a two step process consisting of one or more data downloads followed by a microcode download The data download will transfer all of the required firmware data to the data buffer on the WOO
94. e used when individual logs are specified Otherwise this field will be ignored The Log Offset field value must be less than the individual log size Otherwise a CHECK CONDITION status will be returned with an ILLEGAL REQUEST sense key PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 28 DRIVE COMMAND SET ACCESS EVENT LOG ECH Allocation Length The Allocation Length should be the number of bytes to be transferred during the DATA OUT phase for the pages requested in the Page Code field 6000 Log Mode or OPT field 4000 Log Mode and a 4 byte Event Log Header shown in Table 8 The data out phase will end when either the allocation length has been reached or the number of bytes available for the requested page s plus a 4 byte header has been reached An Allocation Length of zero means that no bytes will be transferred An Allocation Length less than four and greater than zero will result in a CHECK CONDITION status with an ILLEGAL REQUEST sense key The format of 6000 log mode data is as described in Table 9 through Table 22 The format of 4000 log mode data is as described in Table 23 through Table 25 By default the System Event Log Page Code A is disabled The recording of the System Event Log may be enabled by setting bit 6 byte 3 of the vendor unique Page 20 of the MODE SELECT command see the SYSLOG section in the Vendor Unique Parameters for a description Table 6 OPT Field Values 4000 Log Mode
95. e Side field is set to either 1 Side A or 2 Side B a physical seek will take place on only the specified side of the media In these cases the address in bytes 2 5 must be a valid physical address Use the Read Sector Location command to determine valid physical addresses on a media side If the Side field is set to a 3 the command will be terminated with CHECK CONDITION status and the Sense Key shall be set to ILLEGAL REQUEST The ASC will be 24 and the ASCQ will be 0 97653978 H Page 113 DRIVE COMMAND SET SEND DIAGNOSTIC 1DH SEND DIAGNOSTIC 1DH The SEND DIAGNOSTIC command requests the LaserDrive to perform a self diagnostic test SEND DIAGNOSTIC Command 1DH BIT 7 6 5 4 3 2 1 0 BYTE 00 SEND DIAGNOSTIC 1DH 01 LUN 0 PF Reserved SelfTest Reserved 02 Reserved 03 Parameter List Length MSB 04 Parameter List Length LSB 05 Reserved If the selftest SelfTest bit is set it directs the LaserDrive to complete its default selftest NOTE When a SEND DIAGNOSTIC command is sent to the LaserDrive any pending status mode selection options or sense may be cleared If the Initiator does not allow disconnects the LaserDrive will report a CHECK CONDITION with Sense Key 5 and ASC 22 On any SEND DIAGNOSTIC command execution if the selftest is successful the command shall be terminated with GOOD status If the selftest is unsuccessful the command shall be terminat
96. e key will be set to NO SENSE and the additional sense code and qualifier will be set to I O PROCESS TERMINATED Only commands that have data transfers associated with them will accept the TERMINATE I O PROCESS message The valid bit will be set to one and the information field will be set as follows 1 If the command descriptor block specifies an allocation length or parameter list length in bytes the information field will be set to the difference residue between the transfer length and the number of bytes transferred 2 If the command descriptor block specifies a transfer length field the information field will be as defined in the REQUEST SENSE command The LaserDrive ignores the Terminate I O Process message and terminates current I O commands when any error is detected while emptying it s data buffer on a write or when an internal controller error occurs Current I O commands are terminated with the appropriate error status and sense data for the error condition The LaserDrive ignores the TERMINATE I O PROCESS message and terminates the command in a normal manner if the LaserDrive completes all processing i e all data has been transferred to or from the Initiator for the command and a TERMINATE I O PROCESS message is received If the LaserDrive receives a TERMINATE I O PROCESS message before or during the Command Phase the LaserDrive will set the valid bit in the sense data to zero and terminate the I O process with COMMAND TERMI
97. e of a SAVE DATA POINTER message or to the value at the point at which the last SAVE DATA POINTER message occurred for that logical unit Disconnect 04H This message is sent from the LaserDrive to inform an Initiator that the present physical path is going to be broken the LaserDrive plans to disconnect by releasing BSY but that a later reconnect will be required in order to complete the current operation This message shall not cause the Initiator to save the data pointer After successfully sending this message the LaserDrive goes to the BUS FREE phase by releasing BSY The LaserDrive considers the message transmission to be successful when it detects the negation of ACK for the DISCONNECT message with the ATTN signal false NOTE The LaserDrive will always send a SAVE DATA POINTER before each DISCONNECT message Initiator Detected Error 05H This message is sent from an Initiator to inform the LaserDrive that an error e g parity error has occurred that does not preclude the LaserDrive from retrying the operation Although present pointer integrity is not assured a RESTORE POINTERS message shall cause the pointers to be restored to their defined prior state Abort 06H This message is sent from the Initiator to the LaserDrive to clear the current operation If a logical unit has been identified all pending data and status for the issuing Initiator from that logical unit is cleared and the LaserDrive goes to the BUS FREE phase If a
98. e zero WOODI Set this bit to download firmware to the WOODI PCA RWS A Set this bit to download firmware to the RWS PCA on side A RWS B Set this bit to download firmware to the RWS PCA on side B DPC Set this bit to download firmware to the Drive Power Control DPC PCA NOTE In mode one Data Download Mode the buffer ID field cannot be changed once a download procedure has started The total download microcode package is always greater than 32K bytes so it will be segmented into 32K files to accommodate initiator buffer limitations The download microcode package will be contained in N data files each exactly 32K bytes on a floppy disk The files will be named by the following convention Each file will be named the series code of the released firmware The file extensions will be equal to values 1 through N where N is some value less than FEH Example The firmware series code is C01 The download floppy disk for series code C01 would contain the following 32k files CO01 1 C01 2 C01 5 C01 6 C01 7 C01 8 C01 9 C01 A C01 B C01 C C01 F C01 10 C01 11 C01 12 C01 13 C01 14 C01 15 C01 16 C01 17 C01 18 C01 19 C01 1A C01 30 C01 31 C01 34 C01 35 C01 36 C01 37 C01 38 C01 39 C01 3A C01 3B PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 124 DRIVE COMMAND SET WRITE BUFFER 3BH WRITE BUFFER DOWNLOAD PROCEDURE 1 C2 m co Place the file w
99. ed 18F 400 403 Total Number of Host 2E Write Failures 190 193 404 407 Total Number of Host 2A Write Failures 194 197 408 443 Undefined 198 1BB 444 447 Last RTPM Media Serial BCD 1BC 1BF 448 Last RTPM Side 1C0 449 571 Undefined 1C1 23B 572 Busy Disable 23C 573 577 Side A Media ID 23D 241 578 581 Side A Raw Left 242 245 582 585 Side A Relocations Left 246 249 586 Mode Select Read Ahead Enable 24A 587 591 Side B Media ID 24B 24F 592 595 Side B Raw Left 250 253 596 599 Side B Relocations Left 254 257 600 609 Undefined 258 261 610 Disconnect Permission 262 611 Fast Mode Status 263 612 Period Register 264 613 Offset Register 265 614 618 Undefined 266 26A 619 DIR Read Only 26B 620 621 RTPM Hits 26C 26D 622 623 Current RTPM Side 26E 26F 97653978 H Page 47 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 19 6000 Log Mode Logs Page B Failure Analysis Log Size 1566 Continued BYTE DECIMAL DESCRIPTION BYTE HEX 624 631 Current RTPM Media Serial Number 270 277 632 633 Side A Reloc Log Index 278 279 634 783 Side A RELOC LOG 27A 30F 784 785 Side B Reloc Log Index 310 311 786 935 Side B RELOC LOG 312 3A7 936 939 Undefined 3A8 3AB 940 1205 CDE SCSI Activity Log 3AC 4B5 1206 1471 SCSI Bus Reset SALOG 4B6 5BF 1472 1517 Side A Dynamic RELOC Log 500 5ED 1518 1563 Side B Dynamic RELOC Log 5EE 61B 1564 15
100. ed with CHECK CONDITION status and the Selftst Fail message will be displayed on the DOC A subsequent REQUEST SENSE command will yield a Sense Key of HARDWARE ERROR The ASC will be 40 and the ASCQ will be zero The Command Specific Information bytes will contain the failed diagnostic test number If a drive fails the SEND DIAGNOSTIC command the recommended action is to discontinue use of the drive until it can be properly serviced If a user chooses to continue to use a failed drive the SCSI host will be required to reset the failed drive via a SCSI Bus Reset a Bus Device Reset Message or power cycle If the SelfTest bit is set along with any nonzero Parameter List Length value the command will be terminated with CHECK CONDITION status and the Sense Key shall be set to ILLEGAL REQUEST The ASC will be 24 and the ASCQ will be O Page Format PF If the Page Format PF bit is set the self test bit cannot be set The LaserDrive will go to a data out phase to receive a Diagnostic Page in the following format The Allocation Length must be set to 4 if the PF bit is set Table 42 Diagnostic Tests Page BYTE DESCRIPTION 0 Diagnostic Tests Page 80H 1 Page Length 04 2 Start Test Number 3 End Test Number Inclusive PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 114 DRIVE COMMAND SET SEND DIAGNOSTIC 1DH Tests will always start at the Start Test Numbers and continue through the
101. edia is write protected In the following list WP is the Write Protect status reported in byte 2 of the Mode Sense Data header and WPS is found in byte 3 of page 20 WP RIPM PS Definition 1 0 0 Write Protect Invoked Via the Media Cartridge Switch 0 0 0 Write Protection Disabled 1 0 1 Write Protect Invoked Via the Host or DOC Panel 0 X 1 Invalid State 1 1 0 Write Protect due to RTPM Failure 1 1 1 Write Protect due from the Host or Doc Panel and RTPM The default for byte 2 of Vendor Unique page 20 is zero The default for byte 3 of Vendor Unique page 20 is 04H PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 80 DRIVE COMMAND SET LASERFILE MEDIA STATUS PAGE LF 6600 LF 6602 ONLY Each LF 6600 s shuttle can hold up to six LM 6000 media cartridges This shuttle and the mechanisms that position and insert extract media from the embedded drive make up the shuttle portion of the LF 6600 LF 6602 The location where a media cartridge is stored in the shuttle is referred to as a storage address Addresses are assigned to each media cartridge storage location in the shuttle as shown in the following figure MODE SENSE 1AH I CARTRIDGE ADDRESS 5 j EMBEDDED DRIVE l l i CARTRIDGE ADDRESS 3 l l i CARTRIDGE ADDRESS 2 SHUTTLE l I CARTRIDGE ADDRESS 6 l CARTRIDGE ADDRESS 4 CARTRIDGE ADDRESS 1 SHUTTLE
102. either of the following conditions occur when 7 x 40 decimal and y gt 4 when x gt 40 decimal and y gt 0 1x where X thenumber of sectors written on a given side during one write verify extent y the number of sectors dynamically relocated on a given side during one write verify extent SYSLOG The SYSLOG bit can be set to enable system logging when a problem occurs in the field If this log is enabled it will slow down system performance The default SYSLOG value is zero RA The Read Ahead RA bit enables or disables the read ahead function One enables data read ahead The default value is zero When Read Ahead is enabled the LaserDrive will continue reading sequentially after a READ command has completed until one of the following events occur 1 The data buffer is full 2 An empty sector is encountered 3 Another access command is received An RA bit of one with either PER or DTE bit s of one is invalid and will be rejected NOTE The Mode Select Read Ahead function can be disabled through the DOC Refer to the User Manual for more information SUA The Suppress Unit Attention SUA field is used to configure the LaserDrive to not report unit attentions when the DOC panel switches are pressed and a prevent media removal is active or a media is loaded by a MOVE MEDIA command in an LF 6600 If set these unit attention will not be reported If not set these unit attentions will be reported The default is not set
103. f Write Power Too High Interrupts 28 2B 44 47 Number of Write Power Initialization Errors 2C 2F 48 51 Number of Maximum Seek Retries Exhausted 30 33 52 55 Number of Lost Track Crossing Errors 34 37 56 59 Number of Track Crossing Errors 38 3B 60 63 Number of No Track Capture Errors 3C 3F 64 67 Number of Header Errors 40 43 68 71 Number of General Seek Errors 44 47 72 75 Number of Phase Lock Loop Lost Interrupts 48 4B 76 79 Number of Focus Lost Interrupts 4C 4F 80 83 Number of Track Out of Limit Interrupts 50 53 84 87 Number of Synchronization Lost Interrupts 54 57 88 91 Number of Synchronization Error Interrupts 58 5B 92 95 Number of Write Sum Interrupts 5C 5F 96 99 Undefined 60 63 100 103 Number of Media Certification During Write 64 67 Failures 104 107 Number of RWS Spun Down Errors 68 6B 108 111 Number of Media Defect Interrupts 6C 6F 112 115 Number of DSP Sample Bad Errors 70 73 116 119 Number of DSP Timeout Errors 74 77 120 123 Number of Preamble Interrupts 78 7B 124 127 Number of Write Timing Adjustments 7C 7F 128 Reference Verify Level 80 PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 38 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 14 6000 Log Mode Logs Page 6 Side B Write Statistics Log Size 220 Continued BYTE DECIMAL DE
104. f the command specific least significant byte would be in the range of 2 through FDH There is an exception case If a user has entered the Data Download Mode and the LaserDrive is already at the exact desired series code the drive will return GOOD status but on a subsequent request sense the command specific information least significant byte will be equal to FEH This value indicates that no downloads are required and the driver program should abort the SCSI download attempt If a user has entered the Data Download Mode and the Reload bit as well as at least one PCA bit is asserted the drive checks to ensure that the attempt is truly a redundant download If the user chosen PCA is at a different firmware revision than the upgrade firmware revision contained in the SCSI download package the drive will respond with a CHECK CONDITION status to the WRITE BUFFER command 97653978 H Page 127 DRIVE COMMAND SET WRITE BUFFER 3BH PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 128 GLOSSARY GLOSSARY The glossary included in this section is intended to provide convenient access to state of the art terminology as well as product specific terminology Presented in this glossary are terms acronyms and abbreviations which apply to the optical disk drive technology as well as the 6000 product line and the entire set of documents for that product line This means that although some terms found in this glossary may not be me
105. f this data is intended for Plasmon LMS internal use Table 8 Event Log Header BYTE DESCRIPTION 0 Reserved 1 Reserved 2 Log Length MSB 3 Log Length LSB PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 30 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 9 6000 Log Mode Logs Page 1 Drive Statistics Log Size 100 BYTE DECIMAL DESCRIPTION BYTE HEX 0 4 Drive s Serial Number 0 4 5 10 Write Once Optical Drive Interface WOOD 5 A PCA Firmware Revision 11 16 Read Write Servo RWS A PCA Firmware B 10 Revision 17 22 RWS B PCA Firmware Revision 11 16 23 28 Drive Power Control PCA Firmware Revision 17 1C 29 31 WOODI PCA Serial Number 1D 1F 32 34 RWS A Serial Number 20 22 35 37 RWS B Serial Number 23 25 38 40 Optical Mechanical Assembly OMA A Serial 26 28 Number 41 43 OMA B Serial Number 29 2B 44 46 DPC PCA Serial Number 2C 2E 47 49 WOODI PCA Part Number 2F 31 50 52 RWS A PCA Part Number 32 34 53 55 RWS B PCA Part Number 35 37 56 58 DPC PCA Part Number 38 3A 59 Undefined 3B 60 63 Cumulative Time Powered On in Minutes 3C 3F 64 67 Cumulative Time Spun Up in Minutes 40 43 68 71 Cumulative Number of Blocks Written on Side A 44 47 72 75 Cumulative Number of Blocks Written on Side B 48 4B 76 New RWS A PCA Installed 4C 77 New RWS B
106. ilable for access If not ready the Block Descriptor Length will be zero and the block descriptor fields will be omitted 97653978 H Page 77 DRIVE COMMAND SET MODE SENSE 1AH Number of Blocks The Number of Blocks field value is zero for the LaserDrive This specifies that the block length specification that follows applies to the entire media Block Length The Block Length field specifies the length in bytes of each logical block of the LaserDrive logical unit The Block Length returned is 400H 1024 bytes Blocks of parameters called pages follow the block descriptor Each page is preceded by a header of 2 bytes defining the Page Code and the length of the parameters that follow The PS bit indicates the page can be saved to nonvolatile RAM Following the header pages consist of a number of fields of related flags and or values The PS bit in the first byte of each page indicates that the page can be saved to nonvolatile RAM if set Savable pages are optional and identified by the PS bit that is returned in the page header by the MODE SENSE command The Parameter Length indicates the number of bytes that the LaserDrive supports in each Page The Parameter Length value does not include the 2 byte header The LaserDrive returns in the pages of the MODE SENSE commands the entire page as defined in this document Valid Page codes are described in the next section MODE SENSE PAGES The following pages can be returned for a MODE SEN
107. in the Media Loaded Field CURRENT VALUES A PC field value of zero requests that the LaserDrive return the current values for the page code specified The current values returned are parameters set in the last successful MODE SELECT command saved values if a MODE SELECT command has not been executed If the Page Code is 3FH all implemented pages are requested to be returned by the LaserDrive Supported pages 01H 02H and 20H 21H LF 6600 LF 6602 only are returned in ascending order Parameters not supported by the LaserDrive are set to zero The parameter length of each page indicates the length of the parameters that are supported CHANGEABLE VALUES A PC field value of 1H requests that the LaserDrive return the changeable values for the page code specified The page requested is returned with the bits that are allowed to be changed set to one Parameters that are not changeable are set to zero If any part of a field is changeable all bits in that field are set to one If the page code is 3FH all implemented pages requested are returned by the LaserDrive DEFAULT VALUES A PC field value of 2H requests the LaserDrive return the default values for the page code specified The page requested is then returned with the default parameters set Parameters not supported by the LaserDrive are set to zero If the page code is 3FH all implemented pages are returned by the LaserDrive SAVED VALUES A PC field value of 3H requests the LaserDr
108. ing the command or during a self test 5 ILLEGAL Indicates that there was an illegal parameter in the command descriptor REQUEST block or in the additional parameters supplied as data If the LaserDrive detects an invalid parameter in the command descriptor block or in the additional parameters it terminates the command without altering the media 6 UNIT Indicates that the removable media may have been changed or the ATTENTION LaserDrive has been reset 7 DATA Indicates that a command to read or write the media was attempted on a PROTECT block that is protected from this operation The read or write operation is not performed 8 BLANK Indicates that the LaserDrive encountered a blank sector while reading or a CHECK nonblank sector while writing For a VERIFY command this indicates that the LaserDrive encountered a blank sector during a Verify for written data BLKVFY 0 or a nonblank sector during a Verify for blank BLKVFY 1 9 Reserved Reserved Reserved Reserved B ABORTED Indicates that the LaserDrive aborted the command Possibly due to COMMAND receiving an ABORT message The Initiator may be able to recover by trying the command again C EQUAL Indicates Media Scan condition parameters were satisfied D F Reserved Reserved After successful READ or WRITE commands the Information Bytes give the Logical Block Address of the next block to be read or the next sequential block not written If an error occurs in processing the first blo
109. ion with 188 18B ECC 396 399 Number of Read Retries 18C 18F 400 403 Number of Uncorrectable 4000 Control Records 190 193 404 407 Number of Error Detection and Correction ASIC 194 197 Parity Errors 408 411 Number of Buffer Manager Parity Errors 198 19B 412 415 Number of ECC Uncorrectable Sectors 19C 19F 416 419 Number of 4000 Control Records Requiring 1A0 143 Correction 1 If read ahead is enabled this field will not reflect the number of sectors transferred to the host 97653978 H Page 41 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 16 6000 Log Mode Logs Page 8 Side B Read Statistics Log Size 420 BYTE DECIMAL DESCRIPTION BYTE HEX 0 3 Number of Drive Not Configured Errors 0 3 4 7 Number of Command Not Completed Errors 4 7 8 11 Number of Arbitrary Faults 8 B 12 15 Number of Focus Faults C F 16 19 Number of Tracking Out of Limit Faults 10 13 20 23 Number of Transfer Faults 14 17 24 27 Number of C Clock Faults 18 1B 28 81 Number of Motor Speed Faults 1C 1F 32 35 Number of Read Timing Faults 20 23 36 39 Number of Read Power Too High Errors 24 27 40 43 Number of Read Power Initialization Errors 28 2B 44 47 Number of Maximum Seek Retries Exhausted 2C 2F 48 51 Number of Lost Track Crossing Errors 30 33 52 55 Number of Track Crossing Errors 34 37 56 59 Number of No Tra
110. isfied by less than the Number of Blocks Requested 2 Return the valid bit set to one 3 Return the logical block address of the first logical block of the contiguous set of blocks that satisfied the scan criteria in the information bytes 4 Return the number of contiguous logical blocks meeting the scan criteria in the command specific information bytes If the scan is not satisfied and no error occurs the command is terminated with GOOD status A REQUEST SENSE command may then be issued A REQUEST SENSE command following an unsatisfied MEDIA SCAN command shall 1 Return a Sense Key of NO SENSE if no errors occurred during the command execution 2 Return the valid bit set to zero 97653978 H Page 67 DRIVE COMMAND SET MODE SELECT 15H MODE SELECT 15H The MODE SELECT command provides a means for the Initiator to specify LaserDrive operational parameters The parameter settings can be determined with the MODE SENSE command In auto configuring systems the MODE SENSE command should be issued before MODE SELECT to determine supported pages page lengths and other parameters MODE SELECT Command 15H BIT 7 6 5 4 3 2 1 0 BYTE 00 MODE SELECT 15H 01 LUN 0 PF Reserved SP 02 Reserved 03 Reserved 04 Parameter List Length 05 Reserved Page Format PF A Page Format PF bit of one indicates that the MODE SELECT parameters are structured as pages of related parameters
111. it Attention Condition by responding with a CHECK CONDITION status to the next command with the exception of the INQUIRY and REQUEST SENSE commands A Unit Attention Condition is pending for each Initiator until cleared by that Initiator Clearing occurs following any command after a CHECK CONDITION status response except INQUIRY and REQUEST SENSE An Initiator determines that a Unit Attention Condition has occurred because a UNIT ATTENTION Sense Key is found in the sense data returned in response to the REQUEST SENSE command and REQUEST SENSE 97653978 H Page 19 SCSI COMMANDS AND STATUS The Unit Attention Condition relative to the handling of Initiator commands is graphically explained in the following illustration COMMAND IMPLEMENTATION REQUIREMENTS UNIT ATTENTION CONDITION EXISTS IF INQUIRY OR REQUEST SENSE RECEIVE COMMAND COMMAND EXECUTE COMMAND REPORT GOOD STATUS UNIT ATTENTION NOT CLEARED ALL OTHER COMMANDS CLEAR UNIT ATTENTION CONDITION FOR THIS INITIATOR REJECT THE COMMAND REPORT CHECK CONDITION Y IF THE NEXT COMMAND RECEIVED IS REQUEST SENSE THEN THE UNIT ATTENTION SENSE DATA WILL BE REPORTED IF NOT A REQUEST SENSE THEN THE UNIT ATTENTION SENSE DATA IS DISCARDED Unit Attention Condition Handling PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICA
112. ith extension 1 in the initiator buffer In the previous example this would be file C01 1 Issue a WRITE BUFFER command with the mode field set to one The buffer ID should specify the PCA s that are being downloaded if a reload is desired otherwise the buffer ID field must be all zero s The buffer ID field must be the same for each WRITE BUFFER command issued with the mode field set to one The LaserDrive will return GOOD status when the file has been transferred successfully If GOOD status is not returned return to step 1 The initiator should issue a REQUEST SENSE command and obtain the least significant byte of the CSIB s This byte will provide information about the next file to be transferred If the least significant byte of the CSIB is an FFH proceed to step 5 If the least significant byte of the CSIB s is an FEH the LaserDrive is already at the desired series code level and a microcode download is not required If the least significant byte of the CSIB s is not an FEH or FFH it indicates the extension of the next file required for the download process to continue For example if this byte is 03 The next file to send from the example download microcode package above would be C01 3 Load that file from the download microcode package into the initiator data buffer and return to step 2 The LaserDrive has all of the required download microcode data in its buffer Issue a WRITE BUFFER command with the mode field set to 5 E
113. ive return the saved values for the page code specified The page requested will be returned with the parameters set to their saved values Parameters not supported by the LaserDrive will be set to zero All savable pages can be considered saved when a MODE SELECT command issued with the SP bit set to one has returned a GOOD status PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 82 DRIVE COMMAND SET MOVE MEDIA 02H LF 6600 LF 6602 ONLY MOVE MEDIA 02H LF 6600 LF 6602 ONLY The MOVE MEDIA command moves media between the LF 6600 LF 6602 shuttle and the embedded drive The design of the LF 6600 LF 6602 prevents the shuttle from moving if a media cartridge is inserted in the drive Because of this design a loaded media cartridge must always be returned to the original storage address before the shuttle can move Because a media cartridge will always be returned to the original storage address this operation is transparent for the MOVE MEDIA command In addition the implied spin up or spin down is also assumed and transparent for this command The addresses which contain a media cartridge can be determined via the MODE SENSE command MOVE MEDIA Command 02H LF 6600 LF 6602 Only BIT 7 6 5 4 3 2 1 0 BYTE 00 MOVE MEDIA 02H 01 LUN O Reserved Load Immed 02 Reserved 03 Reserved 04 Storage Address 05 Reserved Load If the Load bit is set the LF 6600 LF 6602
114. l use PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 96 DRIVE COMMAND SET REQUEST SENSE 03H Table 37 Sense Data Format BYTE BI 7 6 5 4 3 2 1 BYTE DECIMAL IBEX 00 Valid Sense Data Format Code 70H 0 01 Reserved 1 02 Reserved Sense Key 2 03 Information Byte MSB 3 04 Information Byte 4 05 Information Byte 5 06 Information Byte LSB 6 07 Additional Sense Length F7H 7 08 Command Specific Information Byte MSB 8 09 Command Specific Information Byte 9 10 Command Specific Information Byte A 11 Command Specific Information Byte LSB B 12 Additional Sense Codes C 13 Additional Sense Code Qualifier D 14 Reserved E 15 Reserved F 16 Reserved 10 17 Reserved 11 18 LaserDrive Status Byte 12 97653978 H Page 97 DRIVE COMMAND SET REQUEST SENSE 03H Table 38 Extended Sense Format BIT 7 6 5 4 3 2 1 0 BYTE BYTE HEX DECIMAL WOODI Extended Status 19 20 Controller Detected Error CDE Type 1 System Fault 3 Bus Exception 13 14 21 36 CDE data ASCII string and line number or exception registers 15 24 37 40 Undefined 25 28 41 BDR SCSI Failed Send Power Baseplates Undefined 29 Msg Bus Reset Get DI Diag Up Parked Selftest 42 Auto Unload RCBM MCLI PSI SDI MCLI SCSI CD
115. l value that may be returned Product Revision Level will be an alpha character followed by two numeric characters The last field will either be blank or will display another alpha character 97653978 H Page 63 DRIVE COMMAND SET INQUIRY 12H Table 27 LF 6600 LF 6602 INQUIRY Data BIT 7 6 5 4 3 2 1 0 BYTE 00 Peripheral Device Type 04 01 RMB 1 Reserved 02 ISO Version 0 ECMA Version 0 ANSI Approved Version 2 03 Reserved Termio Reserved Response Data Format 2 1 04 Additional Length 1 FH 05 Reserved 06 Reserved 07 Reserved Sync 1 Reserved 08 Vendor Identification L 09 Vendor Identification M 10 Vendor Identification S 11 Vendor Identification 12 Vendor Identification 13 Vendor Identification 14 Vendor Identification 15 Vendor Identification LSB 16 Product Identification MSB L 17 Product Identification P 18 Product Identification 19 Product Identification 6 20 Product Identification 6 21 Product Identification O 22 Product Identification O 23 Product Identification S 24 Product Identification E 25 Product Identification R 26 Product Identification 27 Product Identification tee 28 Product Identification 29 Product Identification Ju 30 Product Identification a 31 Product Identifica
116. le 38 Extended Sense Format Continued BIT 7 6 5 4 3 2 1 0 BYTE BYTE HEX DECIMAL 91 Laser Laser Laser Laser Laser Laser Laser Laser 5B High Status Status Status Status Status Status Status Power Power Forward Write Write Pulse Read Read Fault Supply Sense Power Power Width Power Power Fault Fault Init Too High Error Too High Init Failed Failed 92 Drive Data PLL Undefined 12V 5V Supply Tempera 5C Configured in Sync Supply Change ture Change Changed 93 Max No No Track Undefined Generic Undefined Tracking Seek 5D Seek Header Capture Seek Initialized Completed Retries Error 94 Undefined RWS RWS Sector Undefined Headers No DMA Undefined 5E Spun Up Calibrated Interrupts Valid Start Valid 95 DSP Servo DSP Undefined BOS Write 5F Disqualify Timeout Sync Timing Error Adjusted 96 Write Servo Sync Error Sync MCDW Tracking Focus PLL 60 Power Defect Interrupt Lost Interrupt Interrupt Interrupt Interrupt Sum Interrupt to Interrupt Media 97 Number of Seek Retries 61 98 Last Command Completed 62 99 Last Command Received 63 100 103 Undefined 64 67 RWS B Extended Status 104 Transfer Start Track MSB 68 105 Transfer Start Track LSB 69 106 Transfer Start Sector 6A 107 Transfer End Track MSB 6B 108 Transfer End Track LSB 6C 109 Transfer End Sector 6D 110 Last Header MSB 6E 111 Last Header LSB 6F 112 Last Header Sector 70 113 Last Fault 71 114 Fault Recovery in Progress 72 115 Last DSP Command 73 116 DSP Co
117. ller Detected Error UNIT ATTENTION 06 since the Last Command from this Initiator Unable to Write or Controller Detected Error HARDWARE ERROR 04 Message Protocol or SCSI Data Transfer Error ABORTED COMMAND 0B Attempt to Write a Previously Written Block BLANK CHECK 08 NOTE Changes to the IB and CSIB in REQUEST SENSE data On failed WRITE commands the Information Bytes bytes 3 6 will report the highest sequential LBA written during that WRITE command plus one The next WRITE can be started at this LBA When the Sense Key is BLANK CHECK the information bytes will be set to the first non blank block detected The Command Specific Information Bytes bytes 8 11 will equal the highest sequential LBA written AND verified during that command plus one All data from the CSIB to the end of the current extent has not been verified All data from the starting LBA up to but not including the CSIB has been verified NOTE Byte 9 Bit 6 invokes disable verify PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 120 DRIVE COMMAND SET WRITE AND VERIFY 2EH WRITE AND VERIFY 2EH The WRITE AND VERIFY command requests the LaserDrive to write on the media all data transferred from the Initiator and then verify that the data is correctly written WRITE AND VERIFY Command 2EH BIT 7 6 5 4 3 2 1 0 BYTE 00 WRITE AND VERIFY 2EH 01 LUN 0 Reserved 02
118. llocation Length The Allocation Length is the number of bytes that the LaserDrive will return to the Initiator during the data phase The drive will return the allocation length or the maximum number of bytes of Inquiry Data available whichever is less An Allocation Length of zero will result in no Inquiry Data being transferred and is not considered an error The INQUIRY command returns CHECK CONDITION status only when the target cannot return the requested INQUIRY data If an INQUIRY command is received from an Initiator with a pending Unit Attention condition the INQUIRY command is executed and the Unit Attention condition will not be cleared The LaserDrive will return one of two types of INQUIRY data The data specified in Table 26 will be returned for a LD 6100 The data specified in Table 27 will be returned for an LF 6600 LF 6602 The Peripheral Device Type field byte 0 is made up of a Peripheral Qualifier field bits 5 7 anda Peripheral Device Type field bits 0 4 These two fields identify the device currently connected to the logical unit If the target is not capable of supporting a device on this logical unit this byte shall be set to 7FH Peripheral Qualifier set to 011b and Peripheral Device Type set to 1FH The LaserDrive will return 04 in byte 0 in response to an inquiry to LUN 0 and 7FH in response to an inquiry to LUN s 1 7 PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 62 DRIVE
119. logical unit number 0 When sent from the LaserDrive to an Initiator during reconnection an implied RESTORE POINTERS message shall be performed by the Initiator prior to completion of this message 97653978 H Page 15 LASER DRIVE SCSI CHARACTERISTICS MESSAGE SYSTEM SPECIFICATION SYNCHRONOUS DATA TRANSFER REQUEST MESSAGE A SYNCHRONOUS DATA TRANSFER REQUEST SDTR message exchange should be initiated by the initiator whenever a previously arranged data transfer agreement may have become invalid refer to Table 2 Examples of the agreement becoming invalid are after a hard reset condition after a BUS DEVICE RESET message after a power cycle after any condition which may leave the data transfer agreement in an indeterminate state In addition an Initiator may initiate an SDTR message exchange whenever it desires to negotiate a new data transfer agreement either synchronous or asynchronous SCSI devices that are capable of synchronous data transfers must not respond to an SDTR message with a MESSAGE REJECT message Table 2 Synchronous Data Transfer Request BYTE VALUE DESCRIPTION 0 01H Extended Message 1 03H Extended Message Length 2 01H SYNCHRONOUS DATA TRANSFER REQUEST Code 3 m Transfer Period Factor 4 15 max REQ ACK Offset OH OFH The SDTR message exchange establishes the permissible transfer periods and the REQ ACK offsets for all logical units on the two devices The transfer period f
120. m throughput the LaserDrive may disconnect from the Initiator freeing the SCSI bus for other device activity To do this the Initiator needs to be reselectable and capable of restoring the pointers upon reconnection The LaserDrive is capable of arbitrating for the SCSI bus and reselecting the Initiator After the LaserDrive has received the READ command it disconnects by sending SAVE DATA POINTERS message and a DISCONNECT message If these messages are accepted BSY is released When the LaserDrive is ready to transfer data it reconnects to the Initiator As a result of this reconnection the Initiator restores the pointers to their most recent saved values which in this case are the initial values and the LaserDrive continues as in the single command example to finish the operation The Initiator recognizes that the operation is complete when COMMAND COMPLETE message is received If the LaserDrive wishes to disconnect after transferring part of the data e g when the Maximum Burst Length has been satisfied it does so by sending a SAVE DATA POINTER message and a DISCONNECT message to the Initiator and then disconnecting When reconnection is completed the current data pointer value is restored to its value immediately prior to the SAVE DATA POINTER message PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 24 SCSI COMMANDS AND STATUS COMMAND PROCESSING EXCEPTION CONDITIONS COMMAND PROCESSING EXCEPTION CONDITIO
121. mand is received 97653978 H Page 17 LASER DRIVE SCSI CHARACTERISTICS PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 18 SCSI COMMANDS AND STATUS COMMAND IMPLEMENTATION REQUIREMENTS SCSI COMMANDS AND STATUS This section defines the SCSI command and status structures as they pertain to the LaserDrive and provides several examples COMMAND IMPLEMENTATION REQUIREMENTS The first byte of all SCSI commands contains an operation code as defined in this document Three bits bits 7 5 of the second byte of each SCSI command specify the logical unit if it is not specified using the IDENTIFY message The last byte of all SCSI commands contains a control byte RESERVED Reserved bits fields bytes and op codes are set aside for future use A reserved bit field or byte must be set to zero A LaserDrive that receives a reserved bit field or byte that is not zero or receives a reserved op code terminates the command with a CHECK CONDITION status and the Sense Key set to ILLEGAL REQUEST UNIT ATTENTION CONDITION The Unit Attention Condition is entered by the LaserDrive to report events of interest to Initiators These events include Successful completion of a spin up BUS DEVICE RESET message SCSI bus reset Power on Self reset due to controller detected error Change of vendor unique mode select parameters SEND DIAGNOSTIC command LaserDrive executes selftest The LaserDrive attempts to report a Un
122. mands BIT 7 6 5 4 3 2 1 0 BYTE 00 Operation Code 01 Logical Number 02 03 Command Specific 04 05 Control Byte 97653978 H Page 21 SCSI COMMANDS AND STATUS COMMAND DESCRIPTOR BLOCK Typical Command Descriptor Block for 10 Byte Commands BIT 7 6 5 4 3 2 1 0 BYTE 00 Operation Code 01 Logical Number 02 03 04 05 Command Specific 06 07 08 09 Control Byte LOGICAL UNIT NUMBER The LaserDrive supports Logical Unit Number LUN 0 Refer to the IDENTIFY message section for a description of the LUN selection on the SCSI bus CONTROL BYTE The control byte is the last byte of every CDB A typical control byte is shown in the following figure The control byte for the LaserDrive is Reserved Control Byte BIT 7 6 5 4 3 2 1 0 BYTE Last Vendor Unique Reserved BIT DESCRIPTION 7 6 Vendor Unique The LaserDrive uses these bits for the MEDIA SCAN command 5 0 Reserved PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 22 SCSI COMMANDS AND STATUS STATUS STATUS A status byte is sent from the LaserDrive to the Initiator during the STATUS phase at the termination of each command as specified in Table 4 unless the command is cleared by an ABORT message by a BUS DEVICE RESET message a hard RESET condition or by an unexpected BUS FREE condition Table 4 Status Byte Values
123. mmand Failure 74 117 RPP Average 75 118 TPP Average 76 119 Mirror Bias 77 120 Mirror Bias Residual 78 PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 100 DRIVE COMMAND SET REQUEST SENSE 03H Table 38 Extended Sense Format Continued BIT 7 6 5 4 3 2 1 0 BYTE BYTE HEX DECIMAL 121 Preamble Read Timing 79 122 Reference Track Amplitude 7A 123 Average Read Amplitude 7B 124 QSUM Regulated Fwd Sense 7C DPC Status 125 Last Command Status 7D 126 Undefined Invalid Command Undefined 7E Command Not Completed 127 Shuttle Shuttle Shuttle Shuttle Shuttle Baseplate Baseplate Motor 7F Door Unload Load Position nitialization Open Close Speed Lock Fault Fault Fault Fault Fault Fault Fault Fault 128 Lower Upper Pin Home Lower Upper Lower Upper 80 Guide Guide Parked Sensor Baseplate Baseplate Baseplate Baseplate Fully Fully Sensor Not Closed Closed Open Open Inserted Inserted Not Detected Sensor Sensor Sensor Sensor Sensor Sensor Detected Not Not Not Not Not Not Detected Detected Detected Detected Detected Detected 129 Spin Hall 3 Hall 2 Hall 1 Insert Shuttle Lower Upper 81 Commuta Not Not Not Motor Stepper Baseplate Baseplate tion Detected Detected Detected Current Not Stepper Stepper Not Not Detected Not Not Detected Detec
124. mpt The drive internally will retry a failed RWS or DPC download CHECK CONDITION Status After a failed microcode download the following 18 bytes of request sense data are returned FO 00 00 00 00 00 00 F7 07 03 04 0A 00 00 00 00 00 00 This indicates that three PCA s were scheduled Both RWS PCA s downloaded successfully however the DPC PCA was attempted and failed because the EEPROM could not be erased DRIVER PROGRAM NOTES The following individual paragraphs cover specific details and are unrelated to one another In all cases the Data Download Mode must be successfully completed prior to the Drive Download Mode The Data Download Mode is considered successfully complete when the drive returns GOOD status and a subsequent request sense obtains a command specific information LSB of FFH Then and only then is the drive ready to accept a Drive Download Mode WRITE BUFFER command Once a Drive Download Mode WRITE BUFFER command is issued any returned CHECK CONDITION status nullifies the previous Data Download Mode operation This means that the Drive Download Mode WRITE BUFFER command retry will never be successful if just the one command is re issued To attempt a retry of an unsuccessful Drive Download Mode WRITE BUFFER command the user must first successfully complete the Data Download Mode and then execute the Drive Download Mode WRITE BUFFER command Immediately after sending out the very first WRITE BUFFER command the expected value o
125. n Field READ SECTOR LOCATION E6H Three formats for Location Field are accepted based on Input Form value LBA Form Byte 2 Byte 3 Byte 4 Byte 5 PBA Form Byte 2 Byte 3 Byte 4 Byte 5 TSA Form Byte 2 Byte 3 Byte 4 Byte 5 LBA most significant byte LBA next byte LBA next byte LBA least significant byte PBA most significant byte PBA next byte PBA next byte PBA least significant byte Track most significant byte Track Least significant byte Reserved Sector 97653978 H Page 93 DRIVE COMMAND SET READ SECTOR LOCATION E6H If the sector location being asked for is beyond the access range of the LaserDrive a CHECK CONDITION status will be returned The Request Sense data will indicate invalid LBA If the location being asked for is valid the LaserDrive will go to data in phase and return information about the sector location in the Sector Location Page format as indicated in Table 36 Table 36 Sector Location Page BIT 7 6 5 4 3 2 1 0 BYTE 00 LBA MSB 01 LBA Next Byte 02 LBA Next Byte 03 LBA LSB 04 PBA MSB 05 PBA Next Byte 06 PBA Next Byte 07 PBA LSB 08 Track MSB 09 Track LSB 10 Reserved 11 Sector 12 Media Side 0 A 1 B 13 Media Zone 0 inner 1 outer 14 21 Reserved PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 94 DRIVE COMMAND SET RELEASE 17H
126. nsertion Failures 34 37 56 59 Address 1 Media Insertions 38 3B 60 63 Address 2 Media Insertions 3C 3F 64 67 Address 3 Media Insertions 40 43 68 71 Address 4 Media Insertions 44 47 72 75 Address 5 Media Insertions 48 4B 76 79 Address 6 Media Insertions 4C 4F 97653978 H Page 33 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 12 6000 Log Mode Logs Page 4 Drive Power Control DPC Statistics Log Size 192 BYTE DECIMAL DESCRIPTION BYTE HEX 0 3 Number of DPC Commands Not Completed 0 3 4 7 Number of Shuttle Door Faults 4 7 8 11 Number of Shuttle Unload Faults 8 B 12 15 Number of Shuttle Load Faults C F 16 19 Number of Shuttle Position Faults 10 13 20 23 Number of Shuttle Initialization Faults 14 17 24 27 Number of Baseplate Open Faults 18 1B 28 81 Number of Baseplate Close Faults 1C 4F 32 35 Number of Motor Speed Faults 20 23 36 39 Number of Right Fully Inserted Sensor 24 27 Detection Faults 40 43 Number of Left Fully Inserted Sensor Detection 28 2B Faults 44 47 Number of Pin Park Sensor Faults 2C 2F 48 51 Number of Home Position Sensor Faults 30 33 52 55 Number of Lower Baseplate Closed Sensor 34 37 Faults 56 59 Number of Upper Baseplate Closed Sensor 38 3B Faults 60 63 Number of Lower Baseplate Open Sensor 3C 3F Faults 64 67 Number of Upper Baseplate Open Sensor 40 43 Faults 68
127. nsure the buffer ID field is all zero s The LaserDrive will utilize the download data in the buffer and reprogram the EEPROM s of the appropriate PCA s When this process is complete the LaserDrive will return status If GOOD status is returned the microcode download is successful proceed to step 7 If nonGOOD status is returned proceed to step 8 A TEST UNIT READY command and subsequent REQUEST SENSE command shall return a CHECK CONDITION status and the Sense Key shall be UNIT ATTENTION The ASC will be 3F and the ASCQ will be 1 indicating that the microcode has changed If the CSIB s are equal to OxFFFFFFFF then another download cycle is required return to step 1 Otherwise the download is complete A SCSI SEND DIAGNOSTIC command is required to restart the newly upgraded drive The failing PCA should be displayed in an error message on the DOC If the failing PCA was not the WOODI return to step 1 and retry the download If the failing PCA was the WOODI the EEPROM s must be replaced or downloaded using the Auxiliary Diagnostic Port ADP Refer to the specific Hardware Maintenance Manual for instructions on these procedures 97653978 H Page 125 DRIVE COMMAND SET WRITE BUFFER 3BH REQUEST SENSE DATA After a WRITE BUFFER command completes in the download microcode mode the CSIB s have a LaserDrive specific definition The least significant nibble of each CSIB is encoded as follows Binary Hex Definition 1000 8 WOOD
128. ntioned in this document they do apply to the product line NOTE The term LaserDrive is used to refer to the LD 6100 LF 6600 and LF 6602 Actuator Adverse Environment Bus Bus bits Byte Cartridge Code Word Command Descriptor Block SCSI 2 Completion Status SCSI 2 Connect SCSI 2 CRC Customer Engineer Daisy chained DAC Data Buffer Defective Sector Detector Disconnect SCSI 2 Disk The electromechanical device which positions the laser beam to access the data on the media Environmental conditions not in the range of specified limits One or more conductors used for transmitting signals or power Bit 7 is the most significant Bits 0 7 Eight bits of binary information two nibbles The protective enclosure for the LM 6000 optical disk A portion of the bytes of a field treated as a group for error detection and correction purposes The structure used to communicate requests from an Initiator to a Target One byte of information sent from the Target to the Initiator on completion of one command or a set of linked commands The function that occurs when an Initiator host selects a Target LaserDrive to start an operation Cyclic Redundancy Check A qualified Plasmon LMS trained person capable of servicing and repairing Plasmon LMS optical products Serial connection of multiple peripherals with interrupt priority which requires termination of the last unit in the string Digi
129. o LASERFILE MEDIA STATUS PAGE LF 6600 LF 6602 ONLY The Mode Select Media Status page allows selection of a media which will be loaded into the drive after a reset a power up or after the door is opened If the home position is selected then no media will be inserted into the drive The shuttle will then move to the home position and await a MOVE MEDIA command Mode Select Media Status Page 21H LF 6600 LF 6602 Only BIT 7 6 5 4 3 2 1 0 BYTE 00 Reserved Page Code 21H 01 Parameter Length 02H 02 Reserved AutoLoad Selection Reserved 03 Reserved AutoLoad Selection ALS The AutoLoad Selection ALS field is a numeric field indicating which media is selected for auto load as indicated in the following list The default is 1 slot 1 BITS 4 6 ADDRESS 0 Home Position 1 Slot 1 Slot 2 Slot 3 Slot 4 Slot 5 Slot 6 MRU Most Recently Used Oo 0c fF WO I 97653978 H Page 75 DRIVE COMMAND SET MODE SENSE 1AH MODE SENSE 1AH The MODE SENSE command provides a means for the LaserDrive to report parameters to the Initiator It is a complementary command to the MODE SELECT command MODE SENSE Command 1AH BIT 7 6 5 4 3 2 1 0 BYTE 00 MODE SENSE 1AH 01 LUN 0 Reserved 02 Page Control PC Page Code 03 Reserved 04 Allocation Length 05 Reserved The Page Control PC field as shown in Table 3
130. of 7C 7F Correction 128 131 Number of Sectors Requiring 22 Bytes of 80 83 Correction 132 135 Number of Sectors Requiring 21 Bytes of 84 87 Correction 136 139 Number of Sectors Requiring 20 Bytes of 88 8B Correction 140 143 Number of Sectors Requiring 19 Bytes of 8C 8F Correction 144 147 Number of Sectors Requiring 18 Bytes of 90 93 Correction 148 151 Number of Sectors Requiring 17 Bytes of 94 97 Correction 152 155 Number of Sectors Requiring 16 Bytes of 98 9B Correction 156 159 Number of Sectors Requiring 15 Bytes of 9C 9F Correction 160 163 Number of Sectors Requiring 14 Bytes of A0 A3 Correction 164 167 Number of Sectors Requiring 13 Bytes of A4 A7 Correction 168 171 Number of Sectors Requiring 12 Bytes of A8 AB Correction 172 175 Number of Sectors Requiring 11 Bytes of AC AF Correction PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 58 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 24 4000 Log Mode Logs OPT Value 2 Data Logged During Read Commands Continued BYTE DECIMAL DESCRIPTION BYTE HEX 176 179 Number of Sectors Requiring 10 Bytes of BO B3 Correction 180 183 Number of Sectors Requiring 9 Bytes of B4 B7 Correction 184 187 Number of Sectors Requiring 8 Bytes of B8 BB Correction 188 191 Number of Sectors Requiring 7 Bytes of BC BF Correction 192 195 Number of
131. of information systems NOTE The word LaserDrive as used in this document refers to the LD 6100 LF 6600 and the LF 6602 If a feature applies specifically to the LD 6100 LF 6600 or LF 6602 then the appropriate model number is used The LD 6100 is a single cartridge optical disk drive the LF 6600 RapidChanger is an optical disk drive with an integral six cartridge shuttle the LF 6602 consists of two LF 6600 drives enclosed in a cabinet The LaserDrive is a write once read many times WORM device used for long term storage of data It has a user storage capacity of 12 GBytes per double sided cartridge Comprehensive error correction and recovery capabilities are incorporated for maintaining data integrity Media management including error recovery is transparent to the host The LaserDrive s integrated controller interfaces with other SCSI devices and a host system via SCSI RELATED PUBLICATIONS The following Plasmon LMS publications pertain to this document LM 6000 Media Product Specification 97647044 LD 6100 LF 6600 LF 6602 Product Specification 97653977 LD 6100 Hardware Maintenance Manual 97653979 LF 6600 LF 6602 Hardware Maintenance Manual 97653980 LD 6100 User Manual 97654437 LF 6600 User Manual 97653976 LF 6602 User Manual 97654438 External reference cited in this specification American National Standards Institute ANSI Small Computer Systems Interface SCSI 2 Specification X3 131 1994 American National St
132. on until the drive is ready The TEST UNIT READY command should be used to determine if the drive is ready before issuing an access command An Immed bit of zero indicates that status will not be returned until after the operation is completed Load Eject LoEj The Load Eject LoEj bit is used by the LF 6600 LF 6602 and ignored by the LD 6100 The bit will cause a START STOP command to operate like the LOAD switch A Load Eject bit of zero requests that no action be taken to load or eject the media from or to the shuttle A Load Eject bit of one requests the media be unloaded if the Start bit is zero If the Start bit is one the media selected via the MODE SELECT command or DOC for Auto Load will be loaded into the LaserDrive Start A Start bit of one requests the LaserDrive spindle be brought up to speed A Start bit of zero requests that the LaserDrive spindle be stopped PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 116 DRIVE COMMAND SET TEST UNIT READY 00H The TEST UNIT READY command determines if the LaserDrive is ready In this case Ready means the media is inserted spun up and is capable of performing media access commands If the drive is not ready then CHECK CONDITION status is returned TEST UNIT READY 00H TEST UNIT READY Command 00H BIT 7 6 5 4 3 2 1 0 BYTE 00 TEST UNIT READY 00H 01 LUN 0 Reserved 02 Reserved 03 Reserved 04
133. ontroller or intelligent peripheral such as the LD 6100 or LF 6600 which can be attached to and respond on the SCSI 2 Bus The bit significant representation of the SCSI 2 Address referring to one of signal lines DB7 through DBO A signal driven to the true state A signal either driven to the false state or biased to the false state by cable terminators A signal that is not driven to the false state but is biased to that state by cable terminators Synchronize Timing and location control of more than one event during a single time period A SCSI 2 device usually referred to as the LaserDrive that performs an operation requested by an Initiator Electrical terminator required at each end of the SCSI 2 bus to terminate the bus The Synchronous Data Transfer Period is the minimum time allowed between leading edges of successive REQ pulses and successive ACK pulses to meet LaserDrive requirements for successful data transfer Write Once Optical Drive Interface PCA Embedded controller A false signal value PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 132 n amp Plasmo
134. owed by an 8 byte block descriptor followed by one or more pages The Sense Data Length specifies the length in bytes of the following MODE SENSE data that is available to be transferred during the DATA IN phase The Sense Data Length count does not include this byte The contents of the Media Type field is two This indicates the WORM media type MODE SENSE Data BIT 7 6 5 4 3 2 1 0 BYTE 00 Sense Data Length 01 Media Type 02H 02 WP Reserved EBC 03 Block Descriptor Length 0 or 8 BLOCK DESCRIPTOR 00 Reserved 01 Number of Blocks 00H MSB 02 Number of Blocks 00H 03 Number of Blocks 00H LSB 04 Reserved 05 Block Length MSB 00H 06 Block Length 04H 07 Block Length LSB 00H PAGE S Write Protect WP A Write Protect WP bit of zero indicates that the LaserDrive or media is write enabled A WP bit of one indicates that the LaserDrive or media is write protected or that an RTPM condition is present Enable Blank Check EBC An Enable Blank Check EBC of one indicates that blank checking during write operations is enabled Block Descriptor Length The Block Descriptor Length specifies the length in bytes of the block descriptor The LaserDrive supports one block descriptor thus the value in this field is either a zero or eight The LaserDrive will return a block descriptor in a MODE SENSE command only when the media is ready and ava
135. ptable expression Error Detection and Correction Electromagnetic Interference Operational interference of a device caused by electromagnetic field generated by another device or coil Electrically Programmable Read Only Memory A type of read only memory Electrostatic Discharge A sudden transfer of static electricity Damage can occur to static sensitive components printed circuit assemblies if a handler does not eliminate the ESD potential before touching components An abnormal and correctable condition that occurs during normal operation Any controlling interface connecting a host to the LaserDrive A malfunction from which the LaserDrive cannot recover without manual intervention Control software residing in read only memory Field Replaceable Unit A subassembly or component which can if malfunctioning be removed and replaced in the field The preformatted area of each sector on a disk Suffix used to denote hexadecimal values e g 7FH is a hex value Host computer The hardware printed circuit assembly and software necessary to interface the host central processing unit to an external device Sector identification preformatted in the media header field This is the portion of the LaserDrive which consists of the WOODI PCA A SCSI 2 device usually a host system which requests an operation to be performed by a Target Illustrated Parts Breakdown Located in the Hardware Maintenance Manual and consisting of
136. r to inform the LaserDrive that the Initiator has a message ready The LaserDrive receives this message by performing a MESSAGE OUT phase The Initiator creates the ATTENTION condition by asserting ATTN at any time except during the ARBITRATION or BUS FREE phases The Initiator should assert the ATTN signal before releasing ACK for the last byte transferred in a bus phase so the ATTENTION condition can be honored before a transition to a new bus phase An ATTN asserted later might not be honored until a later bus phase and then may result in an unexpected action The LaserDrive responds with MESSAGE OUT phase as follows 97653978 H Page 9 LASER DRIVE SCSI CHARACTERISTICS MESSAGE SYSTEM SPECIFICATION 1 If ATTN occurs during a COMMAND phase MESSAGE OUT occurs after transfer of all Command Descriptor Block CDB bytes 2 If ATTN occurs during a DATA phase MESSAGE OUT will occur at the LaserDrive s convenience at a logical block boundary The Initiator must continue REQ ACK handshakes until it detects the phase change Normally DATA phase transfers are controlled by the LaserDrive SCSI processor however once Attention is asserted the REQ ACK handshake is controlled by firmware Therefore to ensure maximum performance the Initiator should assert Attention during the last ACK of a logical block transfer 3 If ATTN occurs during a STATUS phase the MESSAGE OUT shall occur after the status byte has been acknowledged by the Initiator 4
137. released BUS FREE phase The treatment of other logical unit addressing errors is described in the Messages section All Initiators shall support the mandatory messages as indicated in the Initiator Support column of Table 1 The LaserDrive supports messages as indicated in the Sends and Accepts columns of Table 1 Whenever a physical path is established in an Initiator that is utilizing disconnection and reconnection the Initiator shall ensure that the active pointers of the physical path are equal to the saved pointers for that particular logical unit number An implied restore pointers operation occurs as a result of a reselection The LaserDrive will respond with a message reject message to messages with a No in the Drive Accepts column Messages that are not applicable N A are referred to as inappropriate messages The LaserDrive will terminate the command and report an Inapplicable Inappropriate Message Error if a Request Sense Command is the next command sense MESSAGES The messages supported by the LaserDrive are listed in the following paragraphs along with their code values and definitions Command Complete 00H This message is sent from the LaserDrive to an Initiator to indicate that the execution of a command has terminated and that valid status has been sent to the Initiator After successfully sending this message the LaserDrive goes to the BUS FREE phase by releasing BSY The LaserDrive considers the message transmission
138. returned The LaserDrive terminates the DATA IN phase when allocation length bytes have been transferred or when all available sense data have been transferred to the Initiator whichever is less An Allocation Length of zero means that zero bytes will be returned The LaserDrive creates a Sense Data block of 255 bytes FFH The REQUEST SENSE command returns CHECK CONDITION status only to report fatal errors Examples include 1 The LaserDrive receives a nonzero reserved bit in the Command Descriptor Block 2 An unrecovered parity error occurs on the DATA BUS 3 A LaserDrive malfunction prevents return of the sense data Following a fatal error on a REQUEST SENSE command the previously generated sense data is replaced by new sense data indicating the reason REQUEST SENSE failed If a nonfatal error occurs during the execution of the REQUEST SENSE command sense data is returned with GOOD status The Sense Data Format Code 70H indicates the LaserDrive returns Sense Data in the extended format Valid bit of zero indicates that the contents of the information bytes are not defined Valid bit of one indicates the information bytes contain valid information as defined in this specification The sense data format for the LaserDrive is given in Table 37 NOTE Field values from byte 19 decimal and beyond are circumstance dependent and subject to change with any given code revision Interpretation of this data is intended for Plasmon LMS interna
139. roduct Specific Information Log Size 256 Continued BYTE DECIMAL DESCRIPTION BYTE HEX 164 167 Inner Zone Write Calibration Area End Track A4 A7 168 171 Outer Zone Write Calibration Area Start Track A8 AB 172 175 Outer Zone Write Calibration Area End Track AC AF 176 253 Undefined BO FD 254 255 PSI Checksum FE FF PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 54 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 23 4000 Log Mode Logs OPT Value 1 Data Logged During Write Commands BYTE DECIMAL DESCRIPTION BYTE HEX 0 3 Number of Peripheral Buffer Manager Parity 0 3 Errors 4 7 Number of EDAC Parity Errors 4 7 8 11 Number of Unable to Write Errors 8 B 12 15 Number of RWS Write Spin Downs C F 16 19 Number of MCDW Errors 10 13 20 23 Number of Verify Pass Relocations 14 17 24 27 Number of Access Relocations 18 1B 28 31 Number of RWS Write Timeouts 1C 1F 32 35 Number of RWS DPR Verify Retries 20 23 36 39 Undefined 24 27 40 43 Number of Attempted Overwrites 28 2B 44 47 Number of Slow Host Incidents 2C 2F 48 51 Number of Host Aborts 30 33 52 55 Number of Sectors Written during Writes 34 37 56 59 Undefined 38 3B 60 63 Number of Write Commands Executed 3C 3F 64 67 Number of Servo Defect Interrupts 40
140. s A4 A7 168 171 Number of Write Timing Adjustments A8 AB 172 Reference Verify Level AC 173 Inner Zone Write Timing Offset AD 174 Outer Zone Write Timing Offset AE 175 Undefined AF 176 179 Number of Write Power Adjustments BO B3 180 183 Number of DPR Interrupt Retries B4 B7 184 187 Number of Quad Sum Interrupts B8 BB 188 191 Averaged Maximum Data Amplitude BC BF 192 219 Undefined CO DB PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 56 DRIVE COMMAND SET ACCESS EVENT LOG ECH Table 24 4000 Log Mode Logs OPT Value 2 Data Logged During Read Commands BYTE DECIMAL DESCRIPTION BYTE HEX 0 3 Number of Read Timing Retries 0 3 4 7 Number of Peripheral Buffer Manager Parity 4 7 Errors 8 11 Number of EDAC Parity Errors 8 B 12 15 Number of Read Retries C F 16 19 Undefined 10 13 20 23 Number of Uncorrectable Sectors 14 17 24 27 Number of Sectors Requiring 48 Bytes of 18 1B Correction 28 31 Number of Sectors Requiring 47 Bytes of 1C 1F Correction 32 35 Number of Sectors Requiring 46 Bytes of 20 23 Correction 36 39 Number of Sectors Requiring 45 Bytes of 24 27 Correction 40 43 Number of Sectors Requiring 44 Bytes of 28 2B Correction 44 47 Number of Sectors Requiring 43 Bytes of 2C 2F Correction 48 51 Number of Sectors Requiring 42 Bytes of 30 33 Correction 52 55 Number of Se
141. s May Have Changed 6 3F 1 Microcode Changed 6 3F 2 Operating Conditions May Have Changed 6 44 80 Controller Detected Error Reset Occurred 6 5A 0 Operator Request 6 27 0 Write Protected 7 97653978 H Page 105 DRIVE COMMAND SET REQUEST SENSE 03H Table 40 Additional Sense Codes Continued ADDITIONAL QUALIFIERS DESCRIPTION SENSE KEY SENSE CODES BYTE 13 BYTE 2 BYTE 12 0 0 Blank Check 8 0 0 Command Aborted by Host B 48 0 Initiator Detected Error B 49 0 Illegal Message B 4E 0 Overlapped Commands Attempted B 0 0 Equal Condition on Media Scan C 1 All values are hexadecimal NOTE An ASC of 44 ASCQ 80 will be reported when the LaserDrive performs a reset to recover from a controller detected error Additional Sense Code Drive Not Ready ASC 04 will be reported for MEDIA ACCESS commands and Busy Status will be reported for the START STOP command until the reset has completed At that time Sense Key 6 UNIT ATTENTION will be reported with ASC 44 ASCQ 80 If AutoSpin was enabled from the DOC or by Mode Select the drive will become ready when the AutoSpin has completed If AutoSpin was not enabled the drive must be spun up before it will become ready PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 106 DRIVE COMMAND SET REQUEST SENSE 03H The LaserDrive Status Byte byte 18 is defined in Table 41 Table 41 6000 Byte 18 Error Codes
142. se information bytes will report the failing logical block address PLASMON LMS LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 86 DRIVE COMMAND SET READ BUFFER 3CH 10 BYTE READ BUFFER 3CH 10 BYTE The READ BUFFER command requests a transfer of data from the read write buffer to the Initiator This command is used in conjunction with the WRITE BUFFER command as a diagnostic tool READ BUFFER Command 3CH BIT 7 6 5 4 3 2 1 0 BYTE 00 READ BUFFER 3CH 01 LUN 0 Reserved Mode 2 02 Reserved 03 Reserved 04 Reserved 05 Reserved 06 Reserved 07 Allocation Length MSB 08 Allocation Length LSB 09 Reserved Mode The Mode field must be a 2 data only Allocation Length The Allocation Length field represents the number of sector blocks to be transferred from the buffer This value must be within the range of 0 to 3EFH Any other Allocation Length value will result in a CHECK CONDITION status with a sense key of ILLEGAL REQUEST NOTE Due to hardware limitations the LaserDrive will transfer sector blocks rather than bytes in response to the Allocation Length of this command This is not SCSI 2 compliant 97653978 H Page 87 DRIVE COMMAND SET READ CAPACITY 25H READ CAPACITY 25H The LaserDrive supports the READ CAPACITY command and provides a means for the Initiator to request information regarding the capacity of the currently spinning
143. t to ILLEGAL REQUEST and the ASC set to Invalid Field in Parameter List VENDOR UNIQUE PARAMETERS This page gives the parameters specific to the LaserDrive Vendor Unique Mode Select Page 20H BIT 7 6 5 4 3 2 1 0 BYTE 00 Reserved Page Code 20H 01 Parameter Length 02H 02 MMSU SEW DEFDIS DPDIS Language 03 RTPM SYSLOG RA Reserved SUA AutoSpin SDTR SSDIS NOTE On an LF 6600 LF 6602 AutoSpin cannot be disabled however a value of zero in this bit will not be rejected The AutoSpin bit only affects an LD 6100 MMSU The Media Management Recovery on Spin Up MMSU field can be set to configure the LaserDrive to read necessary media management information during spin up If not set media management information will be recovered on the first media access command SEW For the Spares Early Warning SEW field the Initiator can select one of the values indicated here If one of these values is selected CHECK CONDITION status will be reported based on the following criteria SEW Value Criteria 0 Will not report Spares Full Error until spares are full 1 Report Spares Full Error at 50 full ASCQ 80 2 Report Spares Full Error at 70 full ASCQ 81 3 Report Spares Full Error at 90 full ASCQ 82 A subsequent request sense will indicate the following information Sense Key 03H MEDIA ERROR ASC 32H Spares Full ASCQ 8xH The x is set as indicated previously A
144. tal to Analog Converter A functional unit that converts data from digital to analog representation The memory used for temporary storage of all data to and from the host plus all data to and from the disk This buffer allows the controller module to conduct data transfers with the host at an instantaneous rate that is different from the disk rate A sector containing a surface or imbedded irregularity The sector will be relocated during a write Converts data and servo information from the disk into electrical signals This function occurs when a Target releases control of the SCSI 2 Bus allowing it to go to the BUS FREE phase The optical disk media 97653978 H Page 129 GLOSSARY DOC DPC DPR Drive ID the LaserDrive will respond DVDW ECC EDAC EMI EPROM ESD Error External Interface Fault Firmware FRU Header Hex Host Host Adapter ID Internal Controller Initiator SCSI 2 IPB Jump back Laser Diode LaserDrive Laser Pen LBA SCSI 2 Drive Operator Console Complete functional control panel for drive operations without need for host control or connection Interactive panel with LED readout used for operation and diagnostics Drive Power Control PCA Dual Port Random Access Memory Drive Identification The assigned SCSI 2 address to which Data Verification During Write Error Correction Code An algorithm constructed to permit correction of certain errors occurring in an acce
145. ted Detected Detected 130 Motor Motor Motor at 82 Undefined Not Near Full Full Stopped Speed Speed 131 LF 6600 Shuttle Cartridge Cartridge Cartridge Cartridge Cartridge Cartridge 83 Shuttle Door is 6 5 4 3 2 1 Status Open Present Present Present Present Present Present 132 LM 6000 LM 4000 Undefined Cartridge Cartridge Baseplates Baseplates A Side on A 84 Media Media Inserted Write are are Channel Present Present Protected Closed Open 133 Undefined 85 134 Undefined 86 135 Last DPC Command Completed 87 136 Last DPC Command Received 88 137 140 Undefined 89 8C DPC Extended Status 141 Upper Baseplate Position MSB 8D 142 Upper Baseplate Position LSB 8E 143 Lower Baseplate Position MSB 8F 144 Lower Baseplate Position LSB 90 145 Upper Baseplate Stroke MSB 91 97653978 H Page 101 DRIVE COMMAND SET REQUEST SENSE 03H Table 38 Extended Sense Format Continued BYTE ul 7 6 5 4 3 2 1 0 GEX DECIMAL 146 Upper Baseplate Stroke LSB 92 147 Lower Baseplate Stroke MSB 93 148 Lower Baseplate Stroke LSB 94 149 Insert Position MSB 95 150 Insert Position LSB 96 151 Shuttle Position MSB 97 152 Shuttle Position LSB 98 153 Undefined Lower Upper Upper Upper Lower Lower Lower 99 Cartridge Cartridge Baseplate Baseplate Baseplate Baseplate Cartridge Guide Guide Open Closed Fully Fully Guide O sideA Write Open Closed Write Protect Protect 154 Upper Lower
146. the limits set by the other s SDTR message but it is permitted to transfer data with larger transfer periods or smaller REQ ACK offsets than specified in the other s SDTR message or both The successful completion of an exchange of SDTR messages implies an agreement as shown in Table 3 PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 16 LASER DRIVE SCSI CHARACTERISTICS MESSAGE SYSTEM SPECIFICATION Table 3 SDTR Agreement Responding Device RESPONDING DEVICE SDTR RESPONSE IMPLIED AGREEMENT 1 Nonzero REQ ACK Offset Each device transmits data with the agreed transfer period equal to or greater than and REQ ACK offset equal to or less than the values received in the other device s SDTR message 2 REQ ACK Offset Equal to Zero Asynchronous Transfer 3 MESSAGE REJECT Message Asynchronous Transfer If the Initiator recognizes that negotiation is required it asserts the ATTN signal and sends an SDTR message to begin the negotiating process After successfully completing the MESSAGE OUT phase the LaserDrive respond with the proper SDTR message If an abnormal condition prevents the LaserDrive from returning an appropriate response both devices go to asynchronous data transfer mode for data transfers between the two devices The implied agreement for synchronous operation following the LaserDrive response 1 in Table 3 is considered to be negated by both the Initiator and the LaserDrive if the
147. tion 32 Product Revision Level MSB A 33 Product Revision Level O 34 Product Revision Level O 35 Product Revision Level LSB A NOTE AOOA bytes 32 35 are just an example of a Product Revision Level value that may be returned Product Revision Level will be an alpha character followed by two numeric characters The last field will either be blank or will display another alpha character PLASMON L M S LD 6100 LF 6600 LF 6602 SCSI INTERFACE SPECIFICATION Page 64 DRIVE COMMAND SET MEDIA SCAN 38H MEDIA SCAN 38H The MEDIA SCAN command requests the Target to scan the media for a contiguous set of written or blank logical blocks MEDIA SCAN Command 38H BIT 7 6 5 4 3 2 1 0 BYTE 00 MEDIA SCAN 38H 01 LUN 0 WBS ASA Reserved PRA Reserved 02 Logical Block Address MSB 03 Logical Block Address 04 Logical Block Address 05 Logical Block Address LSB 06 Reserved 07 Reserved 08 Parameter List Length 09 Reserved Ignore Reserved Errors Written Block Search WBS A Written Block Search WBS bit of zero indicates that the scan is for blank blocks A WBS bit of one indicates that the scan is for written blocks Advanced Scan Algorithm ASA An Advanced Scan Algorithm ASA bit of zero indicates that the scan area is scanned in sequential order beginning with the address specified in the Logical Block Address field An ASA bit of one
148. upported are listed in Table 5 Each command in this section is listed in alphabetical order Table 5 LaserDrive Commands OP CODE COMMAND Weg oa Angra ACCESS EVENT LOG EC 5 Yes INQUIRY 12 4 No MEDIA SCAN 38 3 Yes MODE SELECT 15 4 No MODE SENSE 1A 4 No MOVE MEDIA 02 6 Yes PARK BASEPLATES C9 5 No PREVENT ALLOW MEDIA REMOVAL 1E 4 No READ 10 BYTE 28 4 Yes READ BUFFER 10 BYTE 3C 30 Yes READ CAPACITY 25 4 No READ DIAGNOSTIC LONG E8 5 Yes READ DIAGNOSTIC PHYSICAL E9 5 Yes READ SECTOR LOCATION E6 5 No RELEASE 17 4 No REQUEST SENSE 03 4 No RESERVE 16 4 No REZERO UNIT 01 4 Yes SEEK 10 BYTE 2B 4 Yes SEND DIAGNOSTIC 1D 3 Yes START STOP UNIT 1B 4 Yes TEST UNIT READY 00 4 No VERIFY 2F 4 Yes WRITE 10 BYTE 2A 40 Yes WRITE AND VERIFY 2E 4 Yes WRITE BUFFER 3B 307 Yes 9 Compliance Key 1 SCSI 1 2 CCS 3 SCSI 2 4 All 5 Vendor Unique 6 LF 6600 LF 6602 only Vendor Unique Byte 9 Bit 6 invokes disable verify 2 Due to hardware limitations the LaserDrive will transfer sector blocks rather than bytes in response to the Allocation Length of this command 3 Disconnects are allowed in Mode 2 only 97653978 H Page 27 DRIVE COMMAND SET ACCESS EVENT LOG ECH NOTE The abbreviations ASC and ASCQ are used extensively throughout this document ASC represents Additional Sense Code and ASCQ represents Additional Sense

THE PLASMON INFINITY

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