SC2500 User Guide
Contents
1. Figure 2 Bottom view of SC2500 SC2500 User Guide Ver 2 1 May 6 2003 Page 22 of 26 6 2 Default Jumper Configuration Definition State Switches ja SCSIID DeviceO_ CT iDo oFF Switch pos 1 OFF Poof f D1 OFF Switch pos 2 OFF 102 0FE Switch pos 3 OFF b Termination Disabled Switch pos 4 OFF d Writes Enabled Switch pos 6 OFF Le SCSI ID Source Connector Switchpos 80N 6 3 SCSI ID Selection 6 3 1 The SC2500 can use any of the 8 SCSI IDs available on the SCSI bus although the highest priority device SCSI ID 7 is usually reserved for the initiator Switch selection for each SCSI ID is shown below To use the main interface connector for ID setting the jumper SW1 8 must be on To use the switch block SW 1 8 must be off 1D2 or SW2 ID1 or SW2 IDO or SW1 SCSIIDSELECTED 6 4 Write Protection The WP switch of jumper is used to write protect the SC2500 When the host processor sends a write command the condition of this switch is checked If switch SW1 6 is on writes are disabled and an error message will be returned to the SCSI controller Moving the switch to the off position will enable writes on the board allowing full read write access to the memory array 6 5 Termination Memtech s SC2500 employs active termination on the SCSI drive Termination is normally disabled on the drive To enable termination move SW1 4 to the ON position To supply power2. SCSI ID Device 0 IDO OFF Switch pos 1 OFF ID1 OFF Switch pos 2 OFF ID2 OFF Switch pos 3 OFF b Termination Disabled Switch pos 4 OFF c Term Power Cable Switch pos 5 OFF d Writes Enabled Switch pos 6 OFF e SCSI ID Source Connector Switch pos 8 ON 5 2 Hardware Installation Procedure 5 2 1 Verify that the drive is configured as required by the application Many SCSI controllers require that the system disk be addressed as device 0 or 1 on the SCSI bus If a different ID is required refer to section 6 for proper switch settings 5 2 2 Power off the computer system by throwing the main power switch 5 2 3 Disconnect the AC power cord from the computer system 5 2 4 Open the system to allow access to the drive bays and the card slots as required 5 2 5 Ifa SCSI initiator is not already installed in the system or on the motherboard then install that card 5 2 6 Install the SC2500 into a standard 3 1 2 drive bay or using adapter hardware place the unit into a 5 1 4 drive bay Any mounting orientation is acceptable 5 2 7 Attach the 50 pin flat ribbon connector from the SCSI initiator to the SC2500 If multiple devices are to be attached to the SCSI bus then remove any terminating resistors or disable active termination on those units not at the END of the cable Only the two devices at the ends of the SCSI bus should have termination enabled Failure to comply with this requirement may cause errone
3. MEMTECH C2500 Stinger 2 5 Solid State SCSI Drive User Guide 153866 001 Revision 2 1 May 6 2003 Memtech SSD Corporation 7628 Las Positas Road Livermore CA 94550 800 445 5511 www memtech com Table Of Contents HIGHLIGHTS 3 INTRODUCTION 3 GENERAL DESCRIPTION 4 3 1 SCSI Interface 4 3 2 SCSI Connector 5 3 3 SCSI Commands 6 GENERAL SPECIFICATIONS 19 INSTALLATION 20 5 1 Default Configuration 20 5 2 Hardware Installation Procedure 20 5 3 Power and Cable Attachments 21 5 4 Software Installation Procedure 21 JUMPER CONFIGURATION 22 6 1 Switch Locations 22 6 2 Default Jumper Configuration 23 6 3 SCSI ID Selection 23 6 4 Write Protection 23 6 5 Termination 23 6 6 SCSI ID Source Selection 24 6 7 Other Jumper Definitions 24 6 8 Memory Size 24 TROUBLE SHOOTING GUIDE 24 7 1 Error Blink Codes 24 7 2 Warning Blink Codes 24 7 3 Unit does not respond to SCSI commands 25 APPENDIX 26 8 1 Contact Information 26 8 2 SCSI specification information 26 8 3 Limited Lifetime Warranty 26 SC2500 User Guide Ver 2 1 May 6 2003 Page 2 of 26 D HIGHLIGHTS 9 Gbyte uncompressed capacity Full 40 C to 85 C operating temp range Active Remap Wear Leveling Technology Unmatched SCSI II compatibility On board active termination 5 volt low power operation Completely solid state no moving parts 1000G operating shock 50G operating vibration Rugged 2 5 low profile form factor Single ended 50 pin SCSI in
4. Ver 2 1 May 6 2003 Page 13 of 26 3 3 8 Reserve Unit 16h The RESERVE command is used to reserve a logical unit or if the extent reservation option is implemented extents within a logical unit Reservation identification tent list length Reserve CDB 3 3 9 Release Unit 17h The RELEASE command is used to release a previously reserved logical unit or if the extent release option is implemented to release previously reserved extents within a logical unit Logical unit number identification Reserved Release CDB SC2500 User Guide Ver 2 1 May 6 2003 Page 14 of 26 3 3 10 Mode Sense The MODE SENSE 6 command provides a means for a target to report parameters to the initiator It is a complementary command to the MODE SELECT 6 command Mode Sense CDB A disable block descriptors DBD bit of zero indicates that the target may return zero or more block descriptors in the returned MODE SENSE data at the target s discretion A DBD bit of one specifies that the target shall not return any block descriptors in the returned MODE SENSE data The page control PC field defines the type of mode parameter values to be returned in the mode pages The page code specifies which mode page to return Description Subclause Return all mode p 3 3 11 Send Diagnostics 1Dh The SEND DIAGNOSTIC command requests that the SC2500 perform diagnostic operations on itself Th
5. Mode Sense 1Ah O 11 Send Diagnostics 1Dh M 12 Read Capacity 25h M 13 Extended Read 28h M 14 Extended Write 2Ah O 15 Erase 2Ch O 16 Verify 2Fh O Notes O Optional M Mandatory The implemented messages on the SC2500 are as follows Extended Message Init Detected Error Abort Message Reject NoOp Message Bus Device Reset Identify OONOARWN gt SC2500 User Guide Ver 2 1 Command Complete 00h Oth 05h 06h 07h 08h Message Parity Error 09h OCh 80h May 6 2003 Generated Both Received Received Generated Received Received Received Received Page 4 of 26 3 2 SCSI Connector The SC2500 uses a 50 pin right angle 2mm center connector mounted on the PCB to create both a power and signal connection to the host Maximum cable length is 6 meters The diagram below depicts connector orientation and location 3 2 1 SCSI Connector Physical Orientation Pin 17 Pin 1 Pin 41 Pin 42 SC2500 User Guide Ver 2 1 May 6 2003 Page 5 of 26 3 2 2 SCSI Connector Pinout The following shows the pin connections for the SCSI connector used on the C2500 PIN SIGNAL PIN SIGNAL 8 GROUND 6 1080 ___ 7 GROUND 8 Di ___ 8 JGROUND 10 1082 38 140 S O 3 3 SCSI Commands 3 3 1 Test Unit Ready Command 00h Bit 7 6 5 4 3 2 2 0 Byte 0 Operation code 00h 1 Logical unit number Reserved 2 Reserved 3 R
6. SENSE command requests that the SC2500 transfer sense data to the initiator If the SC2500 has no sense data available to return it will return a sense key of NO SENSE and an additional sense code of NO ADDITIONAL SENSE INFORMATION The sense data shall be preserved by the target for the initiator until retrieved by a REQUEST SENSE command or until the receipt of any other I O process for the same _T_x nexus Sense data shall be cleared upon receipt of any subsequent I O process including REQUEST SENSE to the same I T x nexus The target shall return CHECK CONDITION status fora REQUEST SENSE command only to report exception conditions specific to the command itself For example a A non zero reserved bit is detected in the command descriptor block b An unrecovered parity error is detected on the data bus c A target malfunction prevents return of the sense data If a recovered error occurs during the execution of the REQUEST SENSE command the target shall return the sense data with GOOD status If a target returns CHECK CONDITION status for a REQUEST SENSE command the sense data may be invalid The SC2500 is capable of returning eighteen bytes of data in response to a REQUEST SENSE command If the allocation length is eighteen or greater and the SC2500 returns less than eighteen bytes of data the initiator should assume that the bytes not transferred would have been zeros had the target returned those bytes Initiators can determin
7. aced up to 18 feet 6 m from the host SCSI controller Data integrity is maintained using Memtech s proprietary Active Remap technology The drive is available in capacities ranging from 128 Mbytes to 9 Gbytes Please contact the factory with your requirements Disk compression utilities may be used to effectively double the usable capacity of the drive Every drive is fully tested under environmental extremes which guarantees data integrity under even the harshest conditions SC2500 User Guide Ver 2 1 May 6 2003 Page 3 of 26 3 GENERAL DESCRIPTION 3 1 SCSI Interface An intelligent SCSI controller from QLogic the FAS209 handles the SCSI interface for the SC2500 The FAS209 is SCSI I and SCSI II compliant and automates much of the interface overhead It has a 16 byte FIFO a DMA interface and numerous command and control registers The SC2500 employs the following attributes aRWN gt Single ended drivers Termination power derived from cable or drive Parity on the interface Hard RESET implemented No reservation queuing The SC2500 has implemented all mandatory SCSI I and SCSI II commands and several optional commands to enhance functionality The following is a list of commands and their equivalent hexadecimal representation 1 Test Unit Ready 00h M 2 Rezero Unit 01h O 3 Request Sense 03h M 4 Format Unit 04h M 5 Read 08h M 6 Write OAh O 7 Inquiry 12h M 8 Reserve Unit 16h M 9 Release Unit 17h M 10
8. e how much sense data was returned by examining the allocation length parameter in the command descriptor block and the additional sense length in the sense data The sense data format for error codes 70h current errors and 71h deferred errors are defined below For further details on the Request Sense command please refer to the SCSI specification SC2500 User Guide Ver 2 1 May 6 2003 Page 8 of 26 Error code 70h or 71h Segment number Reserved Sense key Information Additional sense length n 7 Command specific information Additional sense code qualifier Field replaceable unit code Sense key specific Additional sense bytes Sense data format SC2500 User Guide Ver 2 1 May 6 2003 Page 9 of 26 3 3 4 Format Unit Command 04h The FORMAT UNIT command formats the medium into initiator addressable logical blocks per the initiator defined options In addition the medium may be certified and control structures may be created for the management of the medium and defects Bit Byte Operation code 1 Logical unit number FmtData CmpLst Defect list format 2 Vendor specific 3 MSB Interleave 4 LSB 5 Control Format Unit CDB Only the simplest and mandatory forms of the FORMAT UNIT command with no format data are implemented on the SC2500 This routine accomplishes medium formatt
9. e only mandatory implementation of this command is the self test feature with the parameter list length of zero Send Diagnostics CDB SC2500 User Guide Ver 2 1 May 6 2003 Page 15 of 26 3 3 12 Read Capacity 25h The READ CAPACITY command provides a means for the initiator to request information regarding the capacity of the logical unit Logical block address Reserved Read Capacity CDB 3 3 13 Extended Read 10 28h The READ 10 command requests that the target transfer data to the initiator The most recent data value written in the addressed logical block is returned unit number IPO FUP Reserved Logical block address Reserved Transfer length Control Read 10 CDB SC2500 User Guide Ver 2 1 May 6 2003 Page 16 of 26 3 3 14 Extended Write 10 The WRITE 10 command requests that the SC2500 write the data transferred by the initiator to the medium Logical block address Write 10 CDB SC2500 User Guide Ver 2 1 May 6 2003 Page 17 of 26 3 3 15 Erase Command Bit 7 6 5 4 3 2 1 0 Byte 0 Operation code 2Ch 1 Logical unit number Reserved ERA Reserved RelAdr 2 MSB Logical block address 5 LSB 6 Reserved 7 MSB Transfer length 8 LSB 9 Control Erase CDB The ERASE 10 command requests that the target erase the specified number of blocks starting at the specified log
10. eserved 4 Reserved 5 Control Test Unit Ready CDB The TEST UNIT READY command provides a means to check if the logical unit is ready This is not a request for a self test If the logical unit would accept an SC2500 User Guide Ver 2 1 May 6 2003 Page 6 of 26 appropriate medium access command without returning CHECK CONDITION status this command shall return a GOOD status If the logical unit cannot become operational or is in a state such that an initiator action is required to make the unit ready the target shall return CHECK CONDITION status with a sense key of NOT READY 3 3 2 Rezero Unit Command 01h Bit Byte 7 6 5 4 3 Operation code 01h 1 Logical unit number Reserved 2 Reserved 3 Reserved 4 Reserved 5 Control Rezero Unit CDB The REZERO UNIT command requests that the target set the logical unit to a specific state This is implemented on the SC2500 as a NOP command and has no effect other than to verify the CDB SC2500 User Guide Ver 2 1 May 6 2003 Page 7 of 26 3 3 3 Request Sense Command 03h Bit 7 6 5 4 3 Byte N ra Operation code 03h 1 Logical unit number Reserved N 4 Allocation length 5 Control Request Sense CDB The REQUEST
11. ical block address on the medium As used here erased means the medium shall be erased The previous data recorded on the medium if any shall not be recoverable The Remap Tablet is retained thus allowing write and read access to the memory The erase all ERA bit set to one indicates that all blocks on the medium shall be erased If the ERA bit is set to one and if the number of blocks is not zero the SC2500 will return CHECK CONDITION and the sense key shall be set to ILLEGAL REQUEST with an additional sense code of INVALID FIELD IN CDB If the ERA bit is zero a transfer length of zero indicates that no blocks shall be erased This condition is not considered an error and no data is erased Any other value indicates the number of logical blocks that shall be erased A note about the Erase Command The erase command has been implemented as a security erase mechanism on the SC2500 When executed with ERA set a 768 Mbyte drive can be wiped clean in under 10 seconds All storage locations on the drive are erased including both user and system protected data areas At the conclusion of the erase command the existing Remap Table is restored to memory If you wish to wipe the Remap Table information as well please contact the factory for implementation instructions SC2500 User Guide Ver 2 1 May 6 2003 Page 18 of 26 SC2500 User Guide Ver 2 1 4 GENERAL SPECIFICATIONS Interface SCSI Compatibility SCSI Device Type Maxim
12. ing with little initiator control over defect management The FORMAT UNIT command shall be rejected with RESERVATION CONFLICT status if the logical unit is reserved or any extent reservation from any initiator is active in the specified logical unit During the execution of the FORMAT UNIT command the SC2500 may perform a medium defect management algorithm A FmtData bit of zero indicates that a DATA OUT phase shall not occur The source of defect information is not specified This is the only form of the command the SC2500 supports A complete list CmpLst bit of one indicates that the defect list sent by the initiator is a complete list of defects The existing defect list is discarded by the SC2500 and a new primary defect list is constructed A CmpLst bit of zero indicates that the current defect list should be maintained As a result a new primary is constructed that contains the existing list and any new defects the SC2500 may add during the format operation SC2500 User Guide Ver 2 1 May 6 2003 Page 10 of 26 3 3 5 Read 6 Command 08h The READ 6 command requests that the SC2500 transfer data to the initiator The most recent data value written in the addressed logical block shall be returned 0 Operation code 08h Logical unit number 2 Logical block address 3 use 4 Transfer length 5 Control Read 6 CDB The logical block address field specifies the logica
13. l fields in the CDB are set that the SC2500 does not support it will return a CHECK CONDITION status with the sense key set to ILLEGAL REQUEST and an additional sense code of INVALID FIELD IN CDB An EVPD bit of zero specifies that the SC2500 return the standard INQUIRY data If the page code field is not zero the target shall return CHECK CONDITION status with the sense key set to ILLEGAL REQUEST and an additional sense code of INVALID FIELD IN CDB The page code field specifies which page of vital product data information the SC2500 return The INQUIRY command shall return CHECK CONDITION status only when the target cannot return the requested INQUIRY data The INQUIRY data should be returned even though the peripheral device may not be ready for other commands If an INQUIRY command is received from an initiator with a pending unit attention condition the SC2500 will perform the INQUIRY command and not clear the unit attention condition SC2500 User Guide Ver 2 1 May 6 2003 Page 12 of 26 Peripheral device type Device type modifier ECMA version ANSI approved version Reserved Response data format Additional length n 4 Reserved Reserved Vendor identification Product identification Product revision level Vendor specific Vendor specific parameters Vendor specific Standard Inquiry Data Format Please refer to the SCSI specification for further details on the vital product data pages and formats SC2500 User Guide
14. l block at which the read operation shall begin The transfer length field specifies the number of contiguous logical blocks of data to be transferred A transfer length of zero indicates that 256 logical blocks shall be transferred Any other value indicates the number of logical blocks that shall be transferred 3 3 6 Write 6 Command 0Ah The WRITE 6 command requests that the target write the data transferred by the initiator to the medium Bit 7 6 5 4 3 2 1 0 Byte o Operation code 0Ah 1 Logical unit number MSB 2 Logical block address 3 188 4 Transfer length 5 Control Write 6 CDB The logical block address field specifies the logical block at which the write operation shall begin The transfer length field specifies the number of contiguous logical blocks of data to transfer A transfer length of zero indicates that 256 logical blocks shall be transferred Any other value indicates the number of logical blocks that shall be transferred SC2500 User Guide Ver 2 1 May 6 2003 Page 11 of 26 3 3 7 Inquiry Command 12h The INQUIRY command requests that information regarding parameters of the SC2500 be sent to the initiator Inquiry CDB An enable vital product data EVPD bit of one specifies that the SC2500 return the optional vital product data specified by the page code field If any optiona
15. m 8 2 SCSI specification information Information regarding the SCSI II specification may be obtained from the following locations Global Engineering 15 Inverness Way East Englewood Co 80112 5704 Phone 303 792 2181 or 800 854 7179 Fax 303 792 2192 8 3 Limited Lifetime Warranty Memtech SSD Corporation Memtech warrants your SC2500 against defects in material and workmanship for the life of the drive The warranty is void in the case of misuse accident alteration improper installation misapplication or the result of unauthorized service or repair The implied warranties of merchantability and fitness for a particular purpose and all other warranties expressed or implied except as set forth in this warranty shall not apply to the products delivered In no event shall Memtech be liable for any lost profits lost savings or other incidental or consequential damages arising out of the use of or inability to use this product BEFORE RETURNING PRODUCT A RETURN MATERIAL AUTHORIZATION RMA MUST BE OBTAINED FROM MEMTECH Product shall be returned to Memtech with shipping prepaid If the product fails to conform and warranty repair is necessary Memtech will reimburse customer for the transportation charges incurred SC2500 User Guide Ver 2 1 May 6 2003 Page 26 of 26
16. ous operation of the SCSI bus SC2500 User Guide Ver 2 1 May 6 2003 Page 20 of 26 5 2 8 Make sure that pin one on the cable on the SCSI controller and on the SC2500 are correctly aligned The SC2500 uses a square pad on the connector to indicate pin one and most cables are marked with a triangle on the connector or a stripe on the cable itself to indicate the first pin 5 2 9 Attach the power cable from the system power supply to the SC2500 This cable is keyed and cannot be inserted backwards At this point installation is complete 5 2 10 Reattach the AC power cable to the system and power up 5 3 Power and Cable Attachments The following diagram depicts the SC2500 as viewed from the connector Back View Pin 17 Pin 1 Pin 41 Pin 42 Back view of SC2500 5 4 Software Installation Procedure With the SC2500 installed the user can now treat the device as a standard Direct Access SCSI device Standard implementation of the SC2500 will include building a partition table with FDISK and high level formatting Low level formatting is not required nor recommended Refer to your system documentation for detailed instructions SC2500 User Guide Ver 2 1 May 6 2003 Page 21 of 26 6 JUMPER CONFIGURATION 6 1 Switch Locations The following diagram shows the unit as viewed from the bottom and shows the relative location of the switches and jumpers as described in the text below SCSI Interface
17. terface 0 3 millisecond random access time 10 Mbyte sec media transfer rate 10 Mbyte sec interface transfer rate 10 year guaranteed data integrity NO installable device drivers INTRODUCTION The SC2500 series is a line of 100 compatible SCSI II solid state drives in a 2 5 inch half height format It is completely solid state with no moving parts This accounts for the unit s exceptional ruggedness and wide operating temperature range Sector Erasable NAND EPROM Flash are used to provide up to 9 Gbytes of nonvolatile solid state storage in an extremely small rugged form factor The drive is 100 SCSI compatible and requires no special drivers to operate It is essentially a drop in replacement for standard rotating media The SC2500 can be used in applications where operating conditions are harsh and when reliability is critical A 100 CMOS logic design minimizes power consumption and the 5 volt only power requirement simplifies system supply needs as 12 volts is not necessary An on board microprocessor implements all control functions and oversees SCSI communications via a QLogic FAS209 SCSI II processor The microprocessor performs all power up diagnostics data transfers and error handling in the unit The SC2500 can sustain a 7 0 Mbyte per second read throughput and 1 5 Mbyte per second write throughput The unit responds to all Direct Access device commands and as with all single ended SCSI units the SC2500 may be pl
18. the table below Contact the Memtech factory for repair service Number of Blinks Error ROM Firmware Checksum error ASIC initialization error 6 SCSI controller error 4 Warning Blink Codes The LED is also used to indicate a number of warning conditions Ifa warning condition is encountered the LED will issue the number of blinks indicated below a single time then continue the normal power up procedure Please note that the warning condition is also entered after each SCSI reset so the blink code may be issued several times during power up at irregular intervals Again contact the Memtech factory for service or repair SC2500 User Guide Ver 2 1 May 6 2003 Page 24 of 26 ME EE 2 Blinks No Flash memory detected Invalid Remap Table drive automatically write Roman t 3 Remap Table disabled SW1 7 ON 7 3 Unit does not respond to SCSI commands If the unit passes power up diagnostics but does not respond to SCSI commands there may be a SCSI ID contention among the SCSI bus units Make sure that every SCSI ID used on the bus is different See section 5 to find out how to change the SCSI ID of the unit SC2500 User Guide Ver 2 1 May 6 2003 Page 25 of 26 8 Appendix 8 1 Contact Information For Technical Support or Warranty Repair information please contact Memtech at 7628 Las Positas Road Livermore CA 94550 U S A Phone 925 294 8483 Fax 925 294 5920 Email Info memtech co
19. to the Termination Power line on the SCSI cable move SW1 5 to the ON position Power is sourced to the SCSI cable through a Schottky diode Normally power is supplied to the drive from the cable and the host adapter SC2500 User Guide Ver 2 1 May 6 2003 Page 23 of 26 6 6 6 7 6 8 7 1 7 2 SCSI ID Source Selection There are two sources for the SCSI ID To use the switch to select the SCSI ID option jumper 2 SW1 8 should be set to the OFF position To use the ID selection pins on the main interface connector set SW1 8 to the ON default position Other Jumper Definitions The option 1 jumper at SW1 7 is used during initial testing at the factory and should NOT be set to the ON position during normal operation Memory Size Memory size is determined when the SC2500 is built and preformatted at the factory With some SCSI adapter cards the memory size is displayed when the BIOS message is returned at power up If that memory size changes contact Memtech factory repair Memory capacity can only be upgraded at the factory TROUBLE SHOOTING GUIDE The following is a list of possible error indicators or messages what they indicate and possible solutions to the source problem If no solution is found contact the factory for further assistance Error Blink Codes If the LED issues a repeating blink code accompanied by the drive not responding to SCSI commands this indicates a hard error condition as listed in
20. um Capacity Bytes Block Bus Width Termination Data Transfer Specifications Bus width Read Transfer Rate Write Transfer Rate Data Access time Environmental Requirements Operating Ambient Temperature Commercial Extended Industrial Storage Temperature Humidity Airflow Requirements Ceiling Mechanical Full Capacity Length Width Max Height Drive Form Factor Mounting Considerations Max Weight Power Requirements Vcc Supply Vdd Supply Power Idle Power Active Power Max May 6 2003 ANSI X3 131 1994 0 Direct Access Device 9 Gbytes 512 8 bits Active on board 1 byte 8 bits 7 0 Mbyte sec sustained 1 5 Mbytes sec sustained 0 3 msec 0 C to 70 C 20 C to 75 C 40 C to 85 C 55 C to 125 C Ambient 5 to 95 non condensing none no limit 100mm 3 96 in xxmm 2 75 in 12 7mm 0 50 in 2 5 low profile None any orientation 5 00 volts 5 Not Used 0 50 watts 1 00 watts 1 25 watts Page 19 of 26 5 INSTALLATION 5 1 Default Configuration Refer to section 6 for detailed jumper configuration information The default jumper switch configuration is given in the table below Always power down the unit before changing the SCSI ID or write protect switches Changing these settings with power applied may result in the changes not being recognized DEFAULT JUMPER SWITCH CONFIGURATION Definition State Switches a
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