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Fujitsu MAE3091LC User's Manual

1. 2 1 2 1 Hardware Specifications ooooo h a ai Wanna 2 1 2 1 1 Model fame and p rtinumber Lun u nahas 2 1 2 1 2 Function specifications ce nan e E Hense eo da E uae e ves 2 2 2 L3 Environmental specifications enin re e ei hee erri Re ERE e LY Dern 2 4 PI MSc T BE Ne en ea ae benang em ek ah 2 5 2 1 5 Reh bility 4 ena ben Men Aoa eiblita i etude b tu UA Haa 2 5 2 2 SCSI Function Specifications oooooooooWoWo W nana 2 7 CHAPTER3 DATA FORMAT eere eene enn sein setas 3 1 3 1 D ta Spa66 iun cete Huren er o i n cr ve hasa 3 1 3 1 1 CyHrderco nfignratiofi s ise eI ER e eed 3 1 3 122 Alternate Spare area Sans aan usang EE OE 3 5 371 3 SS Drackefo rmat a doe e ato eset o eee tes 3 6 3 1 45 Sector format sss iiit NA BER NN BER 3 8 3 1 5 Format capacity ageng NN ANA 3 10 3 2 Logical Data Block Addressing ooooWoo WooWoooo W nennen nnnm 3 11 3 3 Detect Managemelit ete ie Lee Kedua aa 3 12 3 3 1 Defect list eus Nn knp oun Ao Wee eun eren e um n Ana 3 12 3 3 2 Alternate block allocation o reete ete nana 3 12 CHAPTER4 INSTALLATION REQUIREMENTS 4 1 4 1 Mounting Requitements ss a uuu uuu ua ua ip IR Ribes 4 1 4 1 1 External
2. lt User spare gt Cylinder 0 1 2 p l p USRCYLO ALTCYL USRCYL User area A ALTCYL Alternate area Alternate cylinder Figure 3 3 Alternate cylinder Note Zero cannot be specified for both the number of spare sectors in each cylinder and the number of alternate cylinders C141 E064 03EN 3 5 1 2 Track format Physical sector allocation Figure 3 4 shows the allocation of the physical sectors in a track The length in bytes of each physical sector and the number of sectors per track vary depending on the logical data block length The unused area G4 exists at the end of the track in formats with most logical data block lengths The interval of the sector pulse length of the physical sector is decided by multiple of 20MHz free running frequency This clock is not equal to the interval of the byte clock for each zone Therefore the physical sector length cannot be described with a byte length 166 666 CLKs 20MHz MAE series 119 700 CLKs 20MHz MAT series MAG series INDEX ak pulse Sector EPE pulse Track Sector 0 n n n m n r Clock Clock Clock Clock Clock unused Figure 3 4 Track format Track skew and cylinder skew To avoid waiting for one turn involved in head and cylinder switching the first logical data block in each track is shifted by the number of sectors track skew and cylinder skew corresponding to the switching time Figure 3 5 shows how the data blo
3. C 1 C 1 SCSI Connector Signal Allocation SCA2 type LVD 16 bit SCSI C 2 C 2 SCSI Connector Signal Allocation 68 pin type LVD 16 bit SCSI C 3 APPENDIX D MODEL NAMES AND PRODUCT NUMBERS D 1 D 1 Model Names and Product Numbetrs Wo Wanna D 2 j IN 1 C141 E064 03EN xiii 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 4 10 4 11 4 12 4 13 4 14 4 15 4 16 xiv FIGURES page MAF series LC MC outer view ooooooooWoomo eene nennen nemen 1 5 MAF series EP MP outer VIEW yu isian antena Rb Neng nanang enakk 1 6 MAB series LC Outer VIEW iei ette tetur pida e eluted e eee tee eene eee de 1 6 MAE series EP o ter VIEW dto DR en Ta 1 7 MAG series LC MC outer VIeW l nn nana 1 7 MAG series LP MP outer view ooooooooWoooWo mna 1 7 Disk head configuration o ooooo oo anna 1 8 System configuration Aa as nam teneor eon Aust 1 10 Cylinder configuratiOti u s sana anakan 3 2 SDAre area cylinders ein eee o en te EN BAN RS 3 5 Alternate cylinder ben nter pet ee rte etie ett i i egt re tu leo edd 3 5 Trackform t iu oett PIA 3 6 Track skew cylinder skew dnd
4. E 1 Li C T Figure 4 2 External dimensions MAF series LP MP C141 E064 03EN 146 0 0 5 10 6 32UNC 7 7 UT HC Don DL 2 25 4 0 5 95 25 0 3 101 6 0 3 Figure 4 3 External dimensions MAE series LC C141 E064 03EN 146 0 0 5 S Orp Sc 10 6 32UNC Figure 4 4 External dimensions MAE series LP C141 E064 03EN 44 45 0 2 Figure 4 5 95 25 0 3 101 640 3 External dimensions MAG series LC MC C141 E064 03EN 146 0 0 5 lO o I LO aJ 10 6 32UNC 28 0 5 41 44 45t0 2 101 6 0 3 Figure 4 6 External dimensions MAG series LP MP C141 E064 03EN 146 0 0 5 4 1 2 Mounting The permissible directions of the IDD are shown in Figure 4 7 and the tolerance of the angle is 5 from the horizontal plane Direction of gravity 7 d Vertical 2 e Upright mounting 1 f Upright mounting 2 Figure 4 7 IDD directions 41 3 Notes on mounting 1 Mounting frame structure Special attention must be given to mount the IDD disk enclosure DE as follows a Use the frame with an embossed structure or the like Mount the IDD with making a gap of 2 5 mm or more between the IDD and the frame of the system b As shown i
5. d IDD model part number P N revision number serial number S N and date of manufacturing Error status e Date when the error occurred e System configuration e Environmental conditions temperature humidity and voltage Error history Error contents Outline of inconvenience Issued commands and specified parameters Sense data Other error analysis information A CAUTION Data loss Save data stored on the disk drive before requesting repair Fujitsu does not assume responsibility if data is destroyed during servicing or repair C141 E064 03EN See Section 5 1 for notes on packing and handling when returning the disk drive 62 2 Revision numbers The revision number of the disk drive is represented with a letter and a number indicated on the revision label attached to the DE Figure 6 1 shows the revision label format m AQ C ov MODEL MAG31B2LC 10 Ultra SCSI SCA2 LVD PART NO CAO1776 B520 SER 00000001 DATE 1998 09 MANUFACTURED RATING 12V ssa UNDER ONE OF SV s ssa FOLLOYING DE REV B U S PATENT 5 FUJITSU LIMITED MADE IN PHILIPPINES REV NO A 2 3 45 6 71 8 Bot2345678 a t vU392000000001 e eo mg o SN Com D A Machine revision 958 u 09 SUN n yn nen uut yy muu amp WON OQ GI fe P SS rto Oto Figure 6 1 Revision label 1 Indicating
6. These commands cannot be used in the current version WRITE RAM Command Proceed to the Copyright Page C141 E064 03EN iii Related Standards Specifications and functions of products covered by this manual comply with the following standards Standard Text No ANSI X3 131 1986 ANSI X3 131 1994 X3T9 2 85 52 Rev 4 B X3T9 2 855D Rev 12 X3T10 10T1D Rev 6 American National Standard for American National Information Systems Small Computer Standards Institute System Interface SCSI ANSI American National Standard for American National Information Systems Small Computer Standards Institute System Interface 2 SCSI 2 ANSI COMMON COMMAND SET CCS American National of the Small Computer Standards Institute System Interface SCSI ANSI WORKING DRAFT Information American National Technology SCSI 3 Parallel Interface Standards Institute ANSI Dfaft proposed American National American National Standard for Standards Institute Information Systems SCSI 3 ANSI Fast 20 Parallel Interface Fast 20 SCSI All Right Reserved Copyright 1998 1999 Fujitsu Limited iv C141 E064 03EN PREFACE This manual describes the MAF3364LC LP MC MP hereafter MAF series MAE3182LC LP MAE3091LC LP hereafter MAE series and MAG3182LC LP MC MP MAG3091LC LP MC MP hereafter MAG series 3 5 inch fixed disk drives with an embedded SCSI controller This manual details the specifications and fu
7. 010 vi C141 E064 03EN DISCLAIMER Failure of the MAF series MAE series and MAG series intelligent disk drive is defined as a failure requiring adjustments repairs or replacement Fujitsu is not responsible for drive failures caused by misuse by the user poor environmental conditions power trouble host problems cable failures or any failure not caused by the drive itself The suffix of the model name of the disk drive varies depending on the electrical requirements capacity and data format at factory shipment of the SCSI i e the interface for connecting the three device types or host system and the disk drives Note 1 However in this manual the typical model names Note 2 are used unless otherwise noted These disk drives may be called intelligent disk drives IDD drives or devices in this manual Note 1 Model names M AE 3 364 LC Interface types LC LVD 16 bit SCSI SCA2 connector LP LVD 16 bit SCSI 68 pin connector MC LVD 16 bit SCSI SCA2 connector 160MHz transfer MP LVD 16 bit SCSI 68 pin connector 160MHz transfer Formatted capacity 100 MB units Disk size 3 3 5 inch Type AE I inch height 7 200rpm AF 1 6 inch height 10 025rpm AG l inch height 10 025rpm Note 2 Type model name MAE3182 MAE3182LC MAE3182LP MAE3091 MAE3091LC MAE3091LP MAF3364 MAF3364LC MAF3364LP MAF3364MC MAF3364MP MAG3182 MAG3182LC MAG3182LP MAG3182MC MAG3182MP MAG3091 MAG3091LC MAG3091LP MAG309
8. 5 3 CNI Setting Terminals The user must set the following terminals and SCSI terminating resistor before installing the IDD in the system e Setting terminal CN2 Figures 5 2 shows the setting terminal position Figures 5 3 shows the allocation and default settings A CAUTION Data loss 1 The user must not change the setting of terminals not described in this section Do not change setting status set at factory shipment 2 Do not change the setting of terminals except following setting pins during the power is turned on Write protect CN2 9 10 3 To short the setting terminal use the short plug attached when the device is shipped from the factory CN2 pin Figure 5 2 IDD setting terminals position C141 E064 03EN 5 5 2 4 6 S8 10 12 14 16 18 20 22 24 1 3 5 7 9 11 13 15 17 19 21 23 Terminal power supply Supply LED signal IDD Reset signal N C Force Single Ended LVD mode Force Narrow 16bit SCSI Spin up mode Write protect enabled SCSI ID 15 LP MP 0 LC MC 2 4 6 8 10 12 14 16 Q O O O0 QOO O eros CO OUO 1 3 5 7 9 11 13 15 LC MC Figure 5 3 Setting terminals CN2 5 3 1 SCSI ID setting Table 5 1 shows the SCSI ID setting Refer to Figures 5 2 and 5
9. Byte track 184 320 175 104 172 032 165 888 159 744 147 456 143 360 360 342 336 324 312 288 280 Table3 2 Zone layout and track capacity MAG series Zone 0 1 2 3 4 5 6 Cylinder 0 to 679 680 to 1 560 2 410 to 3 140to 3 470 to 4 120 to ERE AE EE Ane 420 420 405 400 390 380 zw 5 gt ju j j 4 939 5 989 6 919 7 499 7 979 9 149 9 865 375 360 340 330 320 300 273 Table 3 3 Zone layout and track capacity MAF series zone 0 1 2 3 4 5 6 Cylinder Oto 899 900 to 2 000 to 3 020to 3 730to 4 030 to 4 670 to imi 0008 Ts E Ste 420 420 405 400 390 380 zw 5 5 nu as Cylinder 5 190 to 5 460to 6 460to 7 370to 7 930to 8 400to 9 520 to 5 459 6 459 7 369 7 929 8 399 9 519 10 199 Byte track 192 000 184 320 174 080 168 960 163 840 153 600 143 872 375 360 340 330 320 300 281 C141 E064 03EN 1 2 3 User space The user space is a storage area for user data The data format on the user space the length of data block and the number of data blocks can be specified with the MODE SELECT or MODE SELECT EXTENDED command The default number of cylinders in the user space is 10 200 for MAF series 12 000 for MAE series and 9 866 for MAG series The user however can select the number of cylinders to be allocated in the user space by specifying 10 200 for MAF series 9 866 for MAG series
10. External operator panel connector Signals a 16 bit SCSI ID3 ID2 ID1 IDO Input signals CN1 A1 A5 A7 pin and CN2 02 04 06 08 pin These signals are used for providing switches to set the SCSI ID of the IDD externally Figure 4 23 shows the electrical reguirements For the recommended circuit examples see Subsection 4 3 4 CN1 A7 or CN2 08 CNI AS or CN2 06 5 VDC 10 KQ ID2 lt CN1 A3 or CN2 04 ID lt 100 CN2 02 Input level 1D3 ID2 ID1 ID0 0 to 0 4 VDC 0 to 0 4 VDC 0 to 0 4 VDC 0 to 0 4 VDC 15 0 to 0 4 VDC 0 to 0 4 VDC 0 to 0 4 VDC Open 0 to 0 4 VDC 0 to 0 4 VDC Open 0 to 0 4 VDC 0 to 0 4 VDC 0 to 0 4 VDC Open Open 0 to 0 4 VDC Open 0 to 0 4 VDC 0 to 0 4 VDC 11 0 to 0 4 VDC Open 0 to 0 4 VDC Open 10 0 to 0 4 VDC Open Open 0 to 0 4 VDC 9 0 to 0 4 VDC Open Open Open 8 Open 0 to 0 4 VDC 0 to 0 4 VDC 0 to 0 4 VDC 7 Open 0 to 0 4 VDC 0 to 0 4 VDC Open 6 Open 0 to 0 4 VDC Open 0 to 0 4 VDC 5 Open 0 to 0 4 VDC Open Open 4 Open Open 0 to 0 4 VDC 0 to 0 4 VDC 3 Open Open 0 to 0 4 VDC Open 2 Open Open Open 0 to 0 4 VDC 1 0 Figure 4 23 16 bit SCSI ID external input C141 E064 03EN b Fault LED Output signal CN1 A2 pin The IDD indicates that the write protect status is in effect
11. Motor start mode hua aa i uha 5 8 Write protect settIne CN2 2 nuansa p d et ee pene De CELERE EHE ens 5 8 Setting of the SCSI interface operation mode CN2 ooooooWoooooooW 5 0 Setting of the bus width of the SCSI interface CN2 5 9 Default mode settings by CHANGE DEFINITION command 5 0 Setting check listen caste ID RU BRUDER 5 10 Selt diagnostic nie ioo e ERO EO Rt ERE E Ee iS 6 1 Setting terminal COND sot ehe ee tete te eerte ets B 2 SCSI connector SCA2 type LVD 16 bit SCSI CNIL oo oooooo oo C 2 SCSI connector 68 pin type LVD 16 bit SCSI CNI eee C 3 MAE MAF and MAG series model names and product numbers D 2 C141 E064 03EN CHAPTER 1 GENERAL DESCRIPTION 1 1 Standard Features 12 Hardware Structure 13 System Configuration This chapter describes the feature and configuration of the intelligent disk drives IDD IDDs are high performance large capacity 3 5 inch fixed disk drives with an embedded SCSI controller The interface between the IDD and host system is based on SCSI Small Computer System Interface standard ANSI X3 131 1986 Small Computer System Interface SCSD ANSI X3 131 1994 Small Computer System Interface 2 SCSI 2 The flexibility and expandability of the SCSI as well as the powerful
12. Retry count at verification 63 c Additional error recovery parameters page code 21 Parameter Default value Retry count at seek error 15 C141 E064 03EN 5 19 2 Notes 1 The user can arbitrarily specify the following parameters according to the system requirements e ARRE TB PER 2 The user also can arbitrarily specify parameters other than the above However it is recommended to use the default setting in normal operations Disconnection reconnection parameters page code 2 The following parameters are used to optimize the start timing of reconnection processing to transfer data on the SCSI bus at a read READ or READ EXTENDED command or write operation WRITE WRITE EXTENDED or WRITE AND VERIFY command of the disk Refer to Chapter 2 of SCSI Logical Interface Specifications for further details a Disconnection reconnection parameters page code 2 Parameter Default value Buffer full ratio 20 HEX Buffer empty ratio 20 HEX Notes 1 In a system without the disconnection function these parameters need not be specified 2 Determine the parameter values in consideration of the following performance factors of the system e Time required for reconnection processing e Average data transfer rate of the SCSI bus e Average amount of processing data specified with a command Refer to Chapter 2 of SCSI Logical Interface Specifications for how to obtain the rough calculation values fo
13. address to each physical sector at formatting Data on the disk medium is accessed in logical data block units The INIT specifies the data to be accessed using the logical data block address of that data The logical data block addressing is a function whereby individual data blocks are given addresses of serial binaries in each drive Block address of user space The logical data block address number is consecutively assigned to all of the data blocks in the user space starting with 0 to the first data block The IDD treats sector 0 track 0 cylinder 0 as the first logical data block The data block is allocated in ascending order of addresses in the following sequence refer to Figure 3 5 1 Numbers are assigned in ascending order to all sectors in the same track 2 By following step 1 numbers are assigned in ascending order of tracks to all sectors in each track in the same cylinder except the last track 3 By following step 1 numbers are assigned to all sectors in the last track except the spare sectors 4 After completing steps 1 through 3 for the same cylinder this allocation is repeated from track 0 in the next cylinder and on to the last cylinder cylinder p q in Figure 3 1 except for the alternate cylinders in ascending order of cylinder numbers When the logical data block is allocated some sectors track skew and cylinder skew shown in Figure 3 5 are provided to avoid waiting for one turn involving head and cyl
14. the logical data block which is specified with a parameter in the MODE SELECT command Any even number between 512 and 528 bytes can be specified as the length BCRC It is a 2 byte error detection code Errors in the ID field Single burst errors with lengths of up to 16 bits for each logical block can be detected The 4 byte error detection code appended the LBA field information is used with the MC MP models ECC 40 byte data error detection correction code for the data field It is possible to on the fly correct the single burst errors with lengths of up to 160 bits PAD 1 A specified length of x 00 pattern shown in Figure 3 6 is written in this field This field includes the variation by rotation and circuit delay till reading writing PAD 2 PAD 3 A specified length of x 00 pattern shown in Figure 3 6 is written in this field This field contains the processing time necessary to process next sector continuously This field have rotational speed variation C141 E064 03EN 3 9 3 1 5 3 10 Format capacity The size of the usable area for storing user data on the IDD format capacity varies according to the logical data block or the size of the spare sector area Table 3 4 lists examples of the format capacity when the typical logical data block length and the default spare area are used The following is the general formula to calculate the format capacity Number of sectors of each zone number of sectors per track x
15. AF3364LP 68 pin LVD MAF3364LC SCA2 LVD MAF3364MP 68 pin LVD Data block length at factory shipment E3091LP 512B MAE3091LC MAG3182LP 68 pin LVD 512B MAG3182LC SCA2 LVD Model name type M M AF3364MC SCA2 LVD AE3182LP 68 pin LVD M M AE3182LC SCA2 LVD MA E gt Q N lt Q n gt N lt g MAG3182MP 68 pin LVD 512B AG3091LP 68 pin LVD 512B MAG3091LC SCA2 LVD 512B M MAG3091MP 68 pin LVD SCA2 LVD Note E gt Q lt Q Total storage capacity user area Model Names and Product Numbers Ultra SCSI Only above models are available currently SE Single ended MAx3xxxLC uses SCA 2 type connector Mounting screw C141 E064 03EN MAE MAF and MAG series model names and product numbers Remarks 1 6 inch height 10 025 rpm 10 disks 19 heads 1 6 inch height 10 025 rpm 10 disks 19 heads l inch height 7 200 rpm 4 disks 8 heads l inch height 7 200 rpm 2 disks 4 heads 1 6 inch height 10 025 rpm 5 disks 10 heads l inch height 10 025 rpm 3 disks 5 heads 16 bit SCSI 1 2 4 16 8 bit SCSI 1 2 A AC noise filter 4 15 Actuator 1 9 Additional error recovery parameters 5 19 Addressing of peripheral device 1 11 Aircirculation 1 9 Air pressure adjustment hole 4 12 Allowable input current 4 13 Allowable input voltage 4 13 Alternate area 3 11 Alternate block allocat
16. All V 3 A9 TERMON TERM o ON 1 S4 cl s 21 LED V gt 22 LED LED for 16 bit SCSI NZ 1 For connecting the external LED to CN2 Figure 4 30 External operator panel circuit example LP MP IMPORTANT Do not connect the external LED to both CN1 and CN2 Connect it to either of them C141 E064 03EN 4 29 This page is intentionally left blank CHAPTER 5 INSTALLATION Notes on Handling Drives Connections Setting Terminals Mounting Drives Connecting Cables Confirming Operations after Installation and Preparation for Use Dismounting Drives This chapter describes the notes on handling drives connections setting switches and plugs mounting drives connecting cables confirming drive operations after installation and preparation for use and dismounting drives 5 1 Notes on Handling Drives The items listed in the specifications in Table 2 1 must be strictly observed 1 General notes a Do not give the drive shocks or vibrations exceeding the value defined in the standard because it may cause critical damage to the drive Especially be careful when unpacking b Do not leave the drive in a dirty or contaminated environment c Since static discharge may destroy the CMOS semiconductors in the drive note the following after unpacking e Usean antistatic mat and body grounding when handling the drive e Hold the DE when handling the drive
17. Shock 2 Powet 12 VDC 5 Ready Average 0 25 A 0 9A 0 65 A requirements Peak within 3 0 Input ues i nput powek Pa 100 us at spin up Random W R 0 8 A 1 3A about 80 IOPS m gt I iv gt I amp gt 5 VDC 5 Ready 0 6A 6 Random W R 6 8A 10A about 80 IOPS Ripple 7 5 V 250 mVp p 12 V 250 mVp p 1 For detail condition see Section 4 1 2 Vibration applied to the drive is measured at near the mounting screw hole on the frame as much as possible 3 At random seek write read and default on retry setting with log sweep vibration 4 At power off state after installation Vibration displacement should be less than 2 5 mm 5 Input voltages are specified at the connector 6 The terminator power pin SCSI connector which supplies power to other terminators is not used See Section 4 3 7 High frequency noise is less than 100 mVp p 2 4 C141 E064 03EN 1 2 1 2 Error rate Errors detected during initialization and replaced by alternate block assignments are not included in the error rate Data blocks to be accessed should be distributed over the disk medium equally Unrecoverable error rate Errors which cannot be recovered within 63 retries and ECC correction should not exceed 10 sy per 10 bits Positioning error rate Positioning errors which can be recovered by one retry should be 10 or less per 10 seeks Reliability Mean Ti
18. Table 4 2 are used inserting the cables in the wrong direction can be prevented 2 To connect SCSI devices be careful of the connection position of the cable Check that the SCSI device with the terminating resistor is the last device connected to the cable C141 E064 03EN 5 11 5 6 5 6 1 1 2 3 5 12 Confirming Operations after Installation and Preparation for use Confirming initial operations This section describes the operation check procedures after power is turned on Since the initial operation of the IDD depends on the setting of the motor start mode check the initial operation by either of the following procedures Initial operation in the case of setting so that motor starts at powering on a b When power is turned on the LED blinks an instant and the IDD executes initial self diagnosis If an error is detected in the initial self diagnosis the LED blinks periodically Remark The spindle motor may or may not start rotating in this stage When the IDD status is idle the LED remains off when the initiator accesses the IDD via the SCSI bus the LED lights Initial operation in the case of setting so that motor starts with START STOP command a b d e When power is turned on the LED blinks an instant and the IDD executes initial self diagnosis If an error is detected in the initial self diagnosis the LED blinks The spindle motor does not start r
19. VDC RETURN GND 5 VDC Figure 4 20 Power supply connector 16 bit SCSI model C141 E064 03EN 4 17 3 SG terminal The IDD is not provided with an SG terminal fasten tab for DC grounding Therefore when connecting SG and FG in the system use the 5 VDC RETURN ground inside the power supply connector as the SG on the power supply side 4 Connector for external operator panel e Connector for 16 bit SCSI external operator panel CNI provides connector for the external operator panel other than the SCSI bus as shown in Figure 4 21 Also a connector for the external operator panel are provided on the IDD as shown in Figure 4 22 This allows connection of an external LED on the front panel and an SCSI ID setting switch For the recommended circuit of the external operator panel see Subsection 4 3 4 AA Reserved Wa ene Figure 4 21 External operator panel connector CN1 4 18 C141 E064 03EN Pin2 Pinl FA L 1 Pin23 C141 E064 03EN CN2 Figure 4 22 External operator panel connector CN2 Pin Signal Pin Signal 01 GND 02 IDO 03 GND 04 ID1 05 GND 06 ID2 07 GND 08 D3 09 GND 10 WTP 11 GND 12 RMSTART 13 GND 14 8 16 SW 15 GND 16 DIFFSENS 17 GND 18 N C 19 N C 20 PCMP 21 LED 5V 22 LED 23 TRMPOW 24 TRMPOW 4 19 5 ID3
20. Width of 8 bit bus Force Single Ended Open Follows DIFFSNS signal level on SCSI bus Single Ended mode Setting at factory shipment Note See the description of Section 5 3 for details of the setting requirements and notes C141 E064 03EN This page is intentionally left blank APPENDIX CONNECTOR SIGNAL ALLOCATION SCSI Connector Signal Allocation SCA2 type LVD 16 bit SCSI SCSI Connector Signal Allocation 68 pin type LVD 16 bit SCSI This appendix describes the connector signal allocation C141 E064 03EN C 1 C 1 SCSI Connector Signal Allocation SCA2 type LVD 16 bit SCSI Table C 1 SCSI connector SCA2 type LVD 16 bit SCSI CN1 Pin No Pin No 12V RETURN GND REQ SEL MSG V De SVRETURN MATED2 5 N a 3 AJ njanja A Slolola CA N C 2 C141 E064 03EN C 2 SCSI Connector Signal Allocation 68 pin type LVD 16 bit SCSI Table C2 SCSI connector 68 pin type LVD 16 bit SCSI CN1 LA p meme 5I 18 TERMPWR TERMPWR 2 EMEN C e 1 200 GND Gp ATN GND 1 Power supply for the terminating resistor C141 E064 03EN C 3 This page is intenitionally left blank APPENDIXD MODEL NAMES AND PRODUCT NUMBERS D 1 Model Names and Product Numbers This appendix lists model names types and product numbers C141 E064 03EN D D 1 Table D 1 SCSI type
21. and 12 000 for MAE series as the maximum and the number of alternate cylinders 1 as the minimum The user can also specify the number of logical data blocks to be placed in the user space with the MODE SELECT or MODE SELECT EXTENDED command When the number of logical data blocks is specified as many cylinders as required to place the specified data blocks are allocated in the user space A number starting with 0 is assigned to each cylinder required in the user space in ascending order If the number does not reach 10 200 MAF series and 12 000 MAE series and 9 866 MAG series the rest of the cylinders will not be used Always one alternate cylinders can be established in the user space Alternate cylinders will be used for alternate blocks when primary cylinders in the user space are used up See Subsections 3 1 2 and 3 3 2 for details Internal test space The Internal test space is an area for diagnostic purposes only and its data block length is always 512KByte The Internal test space consists of only 1 cylinder and outer host cylinder is always assigned The user cannot change the number of cylinders in the Internal test space or their positions System space The system space is an area for exclusive use of the IDD itself and the following information are recorded The length of the data block is always 512 bytes Defect list P list and G list MODE SELECT parameter saved value Statistical information log data Controlle
22. and drive parameter page code 4 C141 E064 01EN 2 Format parameter page code 3 Specify the number of spare sectors for each cylinder in the alternate sectors zone field and specify the number of tracks for alternate cylinders 2 number of alternate cylinders x number of disk drive heads in the alternate tracks zone field It is recommended not to specify values smaller than the IDD default value in this field Drive parameter page code 4 To explicitly specify the number of cylinders in the user space specify the number in the number of cylinders field Note that the number of alternate cylinders specified by the format parameter page code 3 is included in the number of cylinders in the user space When the number of cylinders need not be specified specify 0 or the default value in the number of cylinders field In this case either of the smaller value between the number of cylinders to allocate the number of logical data blocks specified in the number of data blocks field of the block descriptor or the maximum number of cylinders that can be used as the user space on the disk drive is allocated in the user space When 0 is specified both in the number of cylinders field and the number of data blocks field of the block descriptor the maximum number of cylinders that can be used as the user space on the disk drive is allocated in the user space FORMAT UNIT command Initialize all sides of the disk with t
23. at factory shipment Setting the bus width of the SCSI interface CN2 By establishing a short circuit between the 13 and 14 CN2 setting terminals the bus width for the SCSI interface is forcibly set to the 8 bit bus mode This setup terminal must be set in order to guarantee the physical level of the SCSI interface s upper bus DB8 15 P1 inside the IDD only when the top level bus DB8 15 P1 for the IDD SCSI interface is not connected to the external part of the IDD Table 5 6 Setting the bus width of the SCSI interface CN2 Set at factory shipment 5 3 3 Mode settings In addition to the previously described settings using setting terminals the IDD is provided with several mode settings The mode settings are enabled by specifying the CHANGE DEFINITION command Table 5 7 lists the mode settings and their settings at factory shipment Refer to Section 3 1 4 of the SCSI Logical Interface Specifications for details of the command Table 5 7 Default mode settings by CHANGE DEFINITION command SCSI level SCSI 2 SYNCHRONOUS DATA TRANSFER REQUEST message sending Sent from IDD UNIT ATTENTION report mode Reported Reselection retry count Not restricted WIDE DATA TRANSFER REQUEST message sending Sent from IDD Reselection time out delay Spindle motor start delay time 0 sec LP MP 12 sec x SCSI ID LC MC C141 E064 03EN 5 9 5 4 Mounting Drives 5 4 4 Check before mounting Reconfirm if the setting terminals are
24. format Each sector on the track consists of an ID field a data field and a gap field which separates them Figure 3 6 gives sector format examples LC LP models SCT SB LBA BCRC ECC SCT PLO PAD G1 Syn ie ME m T 2 40 112 SCT SB LBA DATA 1 Servo SB DATA2 BCRC ECC SCT 4 ind mW PAD PAD PLO gt 49 PADPA GI Syn 1 2 G1 Sync 113 MC MP models SCT SB BCRC ECC SCT PLO PAD lei Synq 4 NE m NE 4 40 1 2 SCT SB 1 Servo SB DATA2 BCRC ECC SCT 1 4 PAD PADI 4 40 lis PA G1 Syn 112 113 MAFIMAG series PLO Sync 23 bytes 24 bytes PAD 1 10 bytes 10 bytes PAD3 S bytes Figure 3 6 Sector format Each sector on the track consists of the following fields 1 Gaps G1 The gap length at the time of formatting initializing is listed in Figure 3 6 Pattern X 00 is written on the gap field 2 PLO Sync In this field pattern X 00 in the length in bytes listed in Figure 3 6 is written 3 Sync Byte SB In this field special pattern in the length in bytes listed in Figure 3 6 is written C141 E064 03EN 4 5 6 7 8 9 LBA The logical block address is written in this field but it is not written with MP MC models because it is appended to BCRC field information Data field User data is stored in the data field of the sector The length of the data field is equal to that of
25. models SCA2 type LVD 16 bit SCSI Locations of Connectors and Setting Terminals LP MP models 68 pin type LVD 16 bit SCSI This appendix shows the locations of connectors and setting terminals C141 E064 03EN A 1 Locations of Connectors and Setting Terminals LC MC models SCA2 type LVD 16 bit SCSI 15 16 CN2 1 2 CNI Viewed from bottom side Rear view MAF series LC MC 460 5 MAE series LC Rear view MAG series LC MC Pin 80 UJ Dononnannmnnnnnnnnnnnnnnnnnnm nm mno 460 5 Figure A 1 Locations of connectors and setting terminals LC MC models SCA2 type LVD 16 bit SCSI A 2 C141 E064 03EN A 2 Locations of Connectors and Setting Terminals LP MP models 68 pin type LVD 16 bit SCSI 23 24 CN2 CN1 1 2 Viewed from bottom side Rear View MAF series LP MP onnector for external operator panel CN MAE series LP MAG series LP MP Pin 11 Pin 1 E ten EB Pin A2 SCSI connector CN1 Connector for external operator panel CN SCSI connector CN1 Figure A 2 Locations of connectors and setting terminals LP MP models 68 pin type LVD 16 bit SCSD C141 E064 03EN A 3 This page i
26. revision number at factory shipment When the disk drive is shipped from the factory the revision number is indicated by deleting numbers in the corresponding letter line up to the corresponding number with see Figure 6 2 2 Changing revision number in the field To change the revision number because parts are replaced or other modification is applied in the field the new level is indicated by enclosing the corresponding number in the corresponding letter line with O see Figure 6 2 C141 E064 03EN 6 7 IMPORTANT When the revision number is changed after the drive is shipped from the factory Fujitsu issues Engineering Change Request Notice in which the new revision number is indicated When the user changes the revision number the user should update the revision label as described in item 2 after applying the modification At shipment o 2022234567 012345678 67803 3 i Y CAU92000000001 Rev A2 2222523 PRI IM Scoto uu WOWU fo SOP ENAM 2929 Revising at field REV NO text 456789 5 539 897 D gt BOol2j14561839 990 001 Rev A3 TENES i 5 636 075 5 212 608 5 321 564 5 400 135 amp 530 815 PES CausS2000000001 3 590 603 Figure 6 2 Indicating revision numbers C141 E064 03EN APPENDIXA J LOCATIONS OF CONNECTORS AND SETTING TERMINALS Locations of Connectors and Setting Terminals LC MC
27. set correctly according to Table 5 8 before mounting the drive in the system cabinet For setting terminals location see Section 5 3 Table 5 8 Setting check list Setting contents Setting Check item SCSI ID CN2 7 8 O SCSIID _ not connected Setting terminal CN2 1 Nr Shon remimdpowerspy CN2 23 24 0 Short Open CRIMP modes 5 4 Mounting procedures Since mounting the drive depends on the system cabinet structure determine the work procedures considering the requirements specific to each system The general mounting method and items to be checked are shown below See Subsection 4 2 for the details of requirements for installing the IDD 1 With a system to which an external operator panel is mounted if it is difficult to access the connector after the drive is mounted on the system cabinet connect the external operator panel cable before mounting the drive 2 Fix the drive in the system cabinet with four mounting screws as follows e The drive has 10 mounting holes both sides 3 2 bottom 4 Fix the drive by using four mounting holes of both sides or the bottom See Figure 4 9 e Use mounting screws whose lengths inside the drive mounting frame are 4 mm or less when the screws are tightened see Figure 4 8 e When mounting the drive be careful not to damage parts on the PCAs 3 Check to ensure that the DE is not touching the frame on the system side after ti
28. test for the Internal test space only once a Error recovery during self diagnostics During the self diagnostics specified by the SEND DIAGNOSTIC command when the recoverable error is detected during the seek or the write read test the IDD performs the error recovery according to the MODE SELECT parameter value read write error recovery parameter additional error recovery parameter which the INIT specifies at the time of issuing the SEND DIAGNOSTIC command Operation of self diagnostics The self diagnostics continues when the error is recovered The self diagnostics terminates normally so far as the unrecoverable error is not detected The self diagnostics continues when the error is recovered If the unrecoverable error is not detected the consecutive tests are executed till last test but the self diagnostics terminates with error The error information indicates that of the last recovered error b Reporting result of self diagnostics and error indication When all specified self diagnostics terminate normally the IDD posts the GOOD status for the SEND DIAGNOSTIC command C141 E064 03EN 6 3 6 1 2 When an error is detected in the self diagnostics the IDD terminates the SEND DIAGNOSTIC command with the CHECK CONDITION status At this time only when an error is detected in the hardware function test the LED on the front panel of the disk drive blinks The INIT should issue the REQUEST SENSE command when the CHECK COND
29. the electrical requirements D3 D2 ID1 D0O Input level 13 SCSI ID 0 to 0 4 VDC 0 to 0 4 VDC 0 to 0 4 VDC 0 to 0 4 VDC 0 to 0 4 VDC 0 to 0 4 VDC 0 to 0 4 VDC Open 0 to 0 4 VDC 0 to 0 4 VDC Open 0 to 0 4 VDC 0 to 0 4 VDC 0 to 0 4 VDC Open Open 0 to 0 4 VDC Open 0 to 0 4 VDC 0 to 0 4 VDC 0 to 0 4 VDC Open 0 to 0 4 VDC Open 0 to 0 4 VDC Open Open 0 to 0 4 VDC 0 to 0 4 VDC Open Open Open Open 0 to 0 4 VDC 0 to 0 4 VDC 0 to 0 4 VDC Open 0 to 0 4 VDC 0 to 0 4 VDC Open Open 0 to 0 4 VDC 0 to 0 4 VDC Open 0 to 0 4 VDC Open Open 0 to 0 4 VDC 0 to 0 4 VDC Open 0 to 0 4 VDC Open Open Open 0 to 0 4 VDC Open Figure 4 29 16 bit SCSI ID external input C141 E064 03EN b WTP Input signal CN2 9 10 pin By connecting the CN2 10 pins to the GND writing operations into the IDD disc media are set to disable 4 3 3 Cable connector requirements Table 4 2 lists the recommended components cable connection Table4 2 Recommended components for connection Reference Applicable Name Par number Manufacturer Figures 4 25 model and 4 30 SCSI cable Cable socket 786090 7 AMP closed end type Power supply cable Cable socket 1 480424 0 AMP CN1 housing External operator Cable socket FCN 723J012 2M Fujitsu Limited panel CN1 housing FCN 723J G AM Fujitsu Limited Cable JAW26 10 34 fa a Ex
30. treatment is made on the same cylinder as the defective sector s and is effective until all spare sectors in that cylinder are used up e Alternate sector treatment The logical data block corresponding to defective sectors is allocated to unused spare sectors in the same cylinder or unused spare sectors in the alternate cylinder C141 E064 03EN 1 The alternate block allocation is executed by the FORMAT UNIT command the REASSIGN BLOCKS command or the automatic alternate block allocation Refer to OEM Manual SCSI Logical Specifications for details of specifications on these commands The logical data block is allocated to the next physically continued sectors after the above sector slip treatment is made On the other hand the logical data block is allocated to spare sectors which are not physically consecutive to the adjacent logical data blocks If a command which processes several logical data blocks is specified the IDD processes those blocks in ascending order of logical data block Alternate block allocation during FORMAT UNIT command execution When the FORMAT UNIT command is specified the allocation of the alternate block to those defective sectors included in the specified lists P G or D is continued until all spare sectors in the same cylinder are used up When they are used up unused spare sectors in the alternate cylinder are allocated to the subsequent sectors in the cylinder by means of alternate sector treatment Fi
31. with a wind velocity of more than 0 5 m s is required in an environment at 40 and an air flow with a wind velocity of more than 1 0m s in an environment at 45 C Center of DE cover 55 e Cool the PCA side especially with air circulation inside the cabinet Confirm the cooling effect by measuring temperature of specific ICs and the DE These measurement results should be within a criteria listed in Table 4 1 Table 4 1 Surface temperature check point No Measurement point Center of DE cover aa 3G 83 C 5 C 85 C 5 Read channel LSI VCM SPMDr ver 7 VCM SPM Driver 4 15 16 CNI 2 1 2 2 3 Figure 4 10 Surface temperature measurement points MAF series MAE series MAG series 4 10 C141 E064 03EN 4 Service clearance area The service clearance area or the sides which must allow access to the IDD for installation or maintenance is shown in Figures 4 11 Surface P Setting terminal External operator panel connector Spindle sync connector Surface R Hole for mounting screw Surface P Cable connection Surface Q Hole for mounting screw Figure 4 11 Service clearance area 5 External magnetic field The drive should not be installed near the ferromagnetic body like a speaker to avoid the influence of the external magnetic field 6 Leak mag
32. 1MC MAG309 IMP C141 E064 03EN Important Alert Items Important Alert Messages The important alert messages in this manual are as follows A hazarous situation could result in minor or moderate personal injury if the user does not perform the procedure correctly This alert signal also indicates that damages to the produt or other property may occur if the user does not perform the procedure correctly Mounting Installation Heat An air flow with an adequate wind velocity must be maintained to deal with much heat generated from the MAF3364xx Reference value An air flow with a wind velocity of more than 0 5 m s is required in an environment at 40 C and an air flow with a wind velocity of more than 1 0m s in an environment at 45 C Center of DE cover 55 Data loss 1 The user must not change the setting of terminals not described in this section Do not change setting status set at factory shipment Do not change the setting of terminals except following setting pins during the power is turned on Write protect CN2 9 10 To short the setting terminal use the short plug attached when the device is shipped from the factory Damage 1 Check that system power is off before connecting or disconnecting cables 2 Do not connect or disconnect cables when power is on Data loss When the SEND DIAGNOSTIC command terminates with the CHECK CONDITION status the INIT must collect the error information using t
33. 200 4000 6000 8000 10000 12000 Seek Difference Seek Difference MAE series MAG series MAF series 4 The start time is the time from power on or start command to when the IDD is ready and stop time is the time for disks to completely stop from power off or stop command 5 This value indicates at ready mode 6 Up to 4 SCSI devices having capacitance of 25pF or less can use cable length of up to 3 0 m 7 5 to 8 SCSI devices having capacitance of 25pF or less can use cable length of up to 1 5 m 8 on 1 connection case 9 host 15 devices case 10 The maximum data transfer rate may be restricted to the response speed of initiator and by 11 transmission characteristics The terminator power pin SCSI connector which supplies power to other terminators is not used C141 E064 03EN 2 3 2 1 3 Environmental specifications Table 2 2 lists environmental and power requirements Table 2 2 Environmental power requirements 5 MAE3182 series MAE3091 series MAF3364 series MAG3182 series MAG3091 series Temperature 1 DE surface temperature atoperating 5 to 55 C Operating 20 to 80 RH Relative humidit Non operating 20 to 80 RH y Packaged inside of a week 5 to 90 RH Maximum wet bulb temperature 29 no condensation Operating 3 0 3 mm 5 to 20Hz 0 5G 20 to 250 Hz or less Vibration 2 Non operating 4 3 1 mm 5 to 20Hz 5G 20 to 250Hz or less Packaged 3 1 mm 5 to 20Hz 5G 20 to 250Hz or less
34. 3 for connector positioning and allocation IMPORTANT When the SCSI ID is set using the external operator panel connector CNI all pins listed in Table 5 1 should be open If any of pins are shorted unexpected SCSI ID is set 5 6 C141 E064 03EN Table 5 1 SCSI ID setting CN2 SCSIID O Open Open Open Open 2 Open Open Shot Open 3 Open Open Shot Short 6 Open Short Shot Open Shot Open Open Open 9 Shot Open Open Short Set at factory shipment IMPORTANT I Set the SCSI ID so that there are no duplicates between SCSI devices on the same SCSI bus 2 The priority of SCSI bus use in ARBITRATION phase is determined by SCSI ID as follows 7 gt 6 gt 5 gt 4 gt 3 gt 2 gt 1 gt 0 gt 15 gt 14 gt 13 gt 12 gt 11 gt 10 gt 9 gt 8 5 3 2 Each mode setting 1 Setting terminal power supply Refer to Table 5 2 for controlling the supply of power from the drive to the SCSI terminal resistance power source TERMPOW However this setting may not be used with SCA2 type 16 bit SCSI LC MC For information on LP MP refer to Figures 5 2 and 5 3 Table 5 2 Setting SCSI terminal power supply LP MP Supply on off of SCSI terminating resistor power from IDD CN2 23 24 Supply on Short 1 Setting at factory shipment C141 E064 03EN 5 7 2 Motor start mode Set how to control the starting of the IDD spindle motor according to Table 5 3 This setting only det
35. 41 E064 03EN 4 17 4 18 4 19 4 20 4 21 4 22 4 23 4 24 4 25 4 26 4 27 4 28 4 29 4 30 5 1 5 2 5 3 5 4 5 5 6 1 6 2 A 1 A 2 AC noise filter recommended a 4 15 Connectors and terminals location LP MP nnne nennen 4 16 16 bit SCST interface conn CtOr een cte ee eint ti eere exc ana 4 17 Power supply connector 16 bit SCSI model ooooooWo W oo WWW 4 17 External operator panel connector CN1 oooooo oo Woman 4 18 External operator panel connector CN2 sese eene eene nnne 4 19 16 bit SCSI ID external input ooooooWo WoW Woman 4 20 Output signal for external LED as eee tetra aqe 4 21 SESI cables connection b epe UG EDGE e ERE ya REPRE 4 23 Connectors and terminals location of SCA2 type SCSI 4 24 SCA2 type SCSI connector 52e Uo 4 25 External operator panel connector CN2 sess eene nnne 4 26 16 bit SCSLID external input a asnaspa ee ees 4 27 External operator panel circuit example LP MP a 4 29 SESI bus co nreCtIOlls edet te Rere Hen PRU eter apte e octets 5 3 IDD setting terminals POSitiOn u u us 5 5 Setting terminals CN2 5 cette teet tee eerie eda nenas 5 6 Checking the SCSI connect
36. CN1 A12 is connected to the GND or the CN2 9 and CN2 10 are short circuited A signal for driving the LED is output IDD 74LS06 ivalent or equivalen 150 2 gt IMPORTANT This signal is temporarily driven at the GND level when the micro program reads the SCSI ID immediately after the power supply to the IDD has been switched on it is possible to set up the SCSI ID by short circuiting CN1 A1 and CN1 A2 c CNI A4 CN1 A6 reserved These pins are temporarily driven at the GND level when the micro program reads the SCSI ID immediately after the power supply to the IDD has been switched on it is possible to set up the SCSI ID by short circuiting CN1 A3 and CN1 A4 and CN1 A5 and CN1 A6 These pins get high impedance status except above d LED and LED V Output signals CN1 A8 pin and CN2 21 22 pin These signals actuate the external LED as same as LED on the front panel of the disk drive The electrical requirements are given in Figure 4 24 IMPORTANT 1 The external LED is identical in indication to the LED on the front of the IDD The meaning of indication can be selected with the CHANGE DEFINITION command For details of command refer to SCSI Logical Interface Specifications 2 Any load other than the external LED see Subsection 4 3 5 should not be connected to the LED V and LED terminals 3 This signal is temporarily driven at the GND level when the mic
37. Do not touch PCAs except for setting 2 Unpackaging a Use a flat work area Check that the This Side Up sign side is up Handle the package on soft material such as a rubber mat not on hard material such as a desk b Be careful not to give excess pressure to the internal unit when removing cushions C141 E064 03EN 5 1 3 4 5 6 c careful not to give excess pressure to the PCAs and interface connector when removing the drive from the antistatic bag d Do not remove the sealing label or cover of the DE and screws Installation a Do not attempt to connect or disconnect connections when power is on The only pin settings that may be altered are pins 9 10 Write Protect in CN2 b Do not move the drive when power is turned on or until the drive completely stops for 30 seconds after power is turned off Packaging a Store the drive in an antistatic vinyl bag with a desiccant silica gel b It is recommended to use the same cushions and packages as those at delivery If those at delivery cannot be used use a package with shock absorption so that the drive is free from direct shocks In this case fully protect the PCAs and interface connector so that they are not damaged c Indicate This Side Up and Handle With Care on the outside of the package so that it is not turned over Delivery a When delivering the drive provide packaging and do not turn it over b Minimize the delivery distance af
38. ED command 5 18 MODE SELECT command 5 18 MR 1 8 MTBF 2 5 MTTR 2 5 Magnet Resistive 1 8 Maintenance information 6 5 Maintenance requirements 6 5 Microprocessing unit 1 9 Mode setting 5 8 Mode settings 5 9 Model name 2 1 D 1 D 2 Motor start mode 5 8 Motor start mode setting 5 8 Mounting drives 5 10 Mounting frame structure 4 8 Mounting orientation 4 8 Mounting procedure 5 10 Mounting reguirements 4 1 N Noise filter 4 15 Notes on mounting 4 8 Online self diagnostics 6 3 Outer view 1 5 1 6 1 7 Outputsignal 4 21 Output signal for external LED 4 22 P PAD 1 3 9 PAD 2 3 9 PAD 3 3 9 PLO sync 3 8 EPR4ML 1 9 Packaging 5 2 Partial response class 4 maximum likelihood 1 9 Parts that can be replaced in the field 6 6 Physical sector allocation 3 6 Positioning error rate 2 5 Power cable 4 28 Power on off sequence 4 13 4 14 Power requirements 2 4 4 13 Power supply 4 17 Power supply connector 4 17 4 25 Prefetches 1 3 Preparating after Installation for use 5 12 Preventive maintenance 6 5 IN 2 C141 E064 03EN Product number 2 1 Programmable data block length 1 4 Programmable multi segment data buffer 1 3 R Random read test 6 5 Read circuit 1 9 Read ahead cache feature 1 3 Read write error recovery parameter 5 19 Recirculation filter 1 9 Recommended components for connection 4 23 4 28 Reconnection parameter 5 20 Release function 1 3 Reliability 2 5 Reporting
39. ENANCE 6 1 Diagnostics 6 2 Maintenance Information This chapter describes diagnostics and maintenance information 6 1 Diagnostics 6 1 1 Self diagnostics The IDD has the following self diagnostic function This function checks the basic operations of the IDD Initial self diagnostics e Online self diagnostics SEND DIAGNOSTIC command Table 6 1 lists the contents of the tests performed with the self diagnostics For a general check of the IDD including the operations of the host system and interface use a test program that runs on the host system see Subsection 6 1 2 Table 6 1 Self diagnostic functions SEND DIAGNOSTIC command Initial Test contents self Self Test 1 Self Test 1 diagnostics Unit Offline 0 Unit Offline 1 Hardware function test O C Seek test 2 Write read test O Cylinder for internal test Note O indicates the tests to be executed and arrows show the sequence of execution C141 E064 03EN 6 1 1 Brief test contents of self diagnostics are as follows a Hardware function test This test checks the basic operation of the controller section and contains following test e RAM microcode is stored e Peripheral circuits of microprocessor MPU e Memory RAM e buffer b Seek test This test checks the positioning operation of the disk drive using several seek modes 2 points seek 1 position sequential seek etc The positioni
40. G series The disks are good for at least 15 000 contact starts and stops Each model contains following number of disks MAF3364 MAE3182 MAB3091 MAG3 182 MAG3091 0 2 Heads The MR Magnet Resistive of the CSS contact start stop type heads are in contact with the disks when the disks are not rotating and automatically float when the rotation is started Figure 1 7 shows the configuration of disks and heads MAF3364 MAG3182 MAG3091 0 0 0 uu 1 b 1 1 2 2 2 P 3 3 Y 3 4 4 4 5 5 6 6 7 7 gt 8 2 MAE3182 13 29 e an a 14 1 MAE3091 2 b 17 0 v x 18 2 1 5 6 Head No 3 e 3 7 Figure 1 7 Disk head configuration 1 8 C141 E064 03EN 3 4 5 6 7 Spindle motor The disks are rotated by a direct drive hall less DC motor The motor speed is controlled by a feedback circuit using the counter electromotive current to precisely maintain the speed at 0 5 of the specified speed Actuator The actuator which uses a rotary voice coil motor VCM consumes little power and generates little heat The head assembly at the end of the actuator arm is controlled and positioned via feedback of servo information in the data The actuator positions heads on the CCS zone over the disk and is locked by the mechanical lock when the power is off or the spindl
41. ITION status is posted The sense data collected by the REQUEST SENSE command indicates the detail information of the error detected in the self diagnostics The IDD status after the CHECK CONDITION status is posted differs according to the type of the detected error a When an error is detected in the seek or write read test the subsequent command can be accepted correctly When the command other than the REQUEST SENSE and NO OPERATION is issued from the same INIT the error information sense data is cleared b When an error is detected in the hardware function test the IDD posts the CHECK CONDITION status for all I O operation request except the REQUEST SENSE command The error status is not cleared and the LED on the front panel continues blinking even if the error information sense data is read Only when the SCSI bus is reset the BUS DEVICE RESET message is issued or the power is turned off or re turned on the status can be cleared When this status is cleared the IDD executes the initial self diagnostics again see item 1 Refer to Chapter 3 of SCSI Logical Interface Specifications for further details of the command specifications A CAUTION Data loss When the SEND DIAGNOSTIC command terminates with the CHECK CONDITION status the INIT must collect the error information using the REQUEST SENSE command The RECEIVE DIAGNOSTIC RESULTS command cannot read out the error information detected in the self diagnostics Test
42. NDIX A toD The appendixes give supplementary information including the locations of mounting setting terminals and connectors a list of setting items the signal assignments of interface connectors lists of model names and product numbers and SCSI interface functions The model numbers have a suffix that describes the electrical requirements of the SCSI interface between host system and disk drive the data formatted at the factory and device type C141 E064 03EN CONVENTIONS This manual uses the following conventions for alerts to prevent physical or property damages to users or by standards ADANGER A DANGER indicates that personal injury will occur if the user does not perform the procedure correctly AWARNING A WARNING indicates that personal injury could occur if the user does not perform the procedure correctly ACAUTION A CAUTION indicates that either minor or moderate personal injury may occur if the user does not perform the procedure correctly NOTICE NOTICE indicates that inconvenience to the user such as damages to the product equipment data and or other property may occur if the user does not pay attention or perform the procedure correctly IMPORTANT IMPORTANT indicates information that the helps the user use the product more effectively Indicates This manual indicates Decimal number Indicates as it is Hexadecimal number Indicates as X 17B9 17B9h or 17B9H Binary number Indicates as
43. U HONG KONG LTD Room 2521 Sun Hung Kai Centre 30 Harbour Road HONG HONG TEL 852 2827 5780 FAX 852 2827 4724 FUJITSU KOREA LTD Coryo Finance Center Bldg 23 6 Y oulDo Dong Young DungP o Gu Seoul Republic of KOREA TEL 82 2 3787 6000 FAX 82 2 3787 6070 FUJITSU COMPUTERS SINGAPORE PTE LTD 20 Science Park Road 03 01 TELETECH PARK SINGAPORE SCIENCE PARK II Singapore 117674 TEL 65 777 6577 FAX 65 771 5499 FUJITSU TAIWAN LTD 8F Hun Tai Center 168 170 Tun Hwa North Road Ist Sec Taipei TAIWAN TEL 886 2 545 7700 FAX 886 2 717 4644 FUJITSU SYSTEMS BUSINESS MALAYSIA SDN BHD Fujitsu Plaza 1A J alan Tandang 204 P O Box 636 Pejabat Pos Jalan Sultan 46770 Petaling J aya Selangor Darul Ehsan Malaysia TEL 60 3 793 3888 FAX 60 3 793 0888 FUJITSU SYSTEMS BUSINESS THAILAND LTD 12th F1 Olympia Thai Tower 444 Rachadapisek Road Samsennok Huay Kwang Bangkok 10320 Thailand TEL 66 2 512 6066 FAX 66 2 512 6068 FUJITSU LIMITED Reader Comment Form We would appreciate your comments and suggestions for improving this publication How did you use this publication Is the material presented effectively Learning Installing Sales Fully Well Well Reference Maintaining 0perating covered Illustrated Organized is your overall rating of this publication What is your occupation Very Good F
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45. al dimensions 25 4 mm 41 3 mm 101 6 mm 101 6 mm 146 0 mm 146 0 mm 25 4 mm 101 6 mm 146 0 mm Interface Fast SCSI Single Ended Cable length 6 m max Cable length 3 m max 6 Cable length 1 5 m max 7 Fast 20 SCSI Single Ended Fast 80 SCSI Cable length 25 m max 8 LVD Cable length 12 m max 9 Disk drive 21 7 to 32 79 MB s 30 31 to 44 68 29 45 to 44 68 MB s Data transfer MB s rate 10 SCSI Synchronous EU 80 MB s LC LP models mode 80 MB s max LC LP models 160 MB s max MC MP models Logical data block length 1 512 to 528 byte Fixed length SCSI command specification ANSI X3 13 1986 and CCS Rev 4B conformity SCSI 2 ANSI X3T9 2 86 109 Rev 10h command support SCSI 3 command partial support Data buffer 2 MB FIFO ring buffer LC LP models 4 MB FIFO ring buffer MC MP models multi segment buffer Segment count 1 to 32 Read ahead cache 2 2 C141 E064 03EN C1 The formatted capacity can be changed by changing the logical block length and using spare sector space See Chapter 3 for the further information 2 The number of user cylinders indicates the max and includes the alternate cylinder The number of user cylinders and alternate cylinders can be specified at format of the IDD 3 The positioning time is as follows Seek time ms Seek time ms 12 12 10 10 8 ads 8 6 6 4 4 2 2 0 0 I i mu O 2000 4000 6000 8000 10000 12000 0
46. ching operations and Write Cache feature 4 Control mode parameters The following parameters are used to control the tagged queuing and error logging C141 E064 03EN 5 21 5 7 a Control mode parameters Parameter Default value Queue algorithm modifier 0 Ordering is Q g g executed by read command only QErr Resume or abort remaining suspended 0 command is commands after sense pending state resumed DQue Disabling tagged command queuing 0 enabled Dismounting Drives Since dismounting the drive to check the setting terminals change the setting or change the drive depends on the structure of the system cabinet the work procedures must be determined in consideration of the requirements specific to the system This section describes the general procedures and notes on dismounting the drive It is recommended before dismounting the drive to make sure the spindle motor completely stops after power was turned off a Remove the power cable b Remove the SCSI cable c When the external operator panel is mounted remove the cable If it is difficult to access the connector position the cable may be removed after step e d Remove the DC ground cable e Remove the four mounting screws securing the drive then remove the drive from the system cabinet f To store or transport the drive keep it in an antistatic bag and provide packing see Section 5 1 C141 E064 03EN CHAPTER 6 DIAGNOSTICS AND MAINT
47. citance of 25 pF Cable length of up to 1 5 m High speed data transfer 8 bit SCSI The data transfer rate on the SCSI bus is 40 MB s maximum in synchronous mode 16 bitSCSI The data transfer rate on the SCSI bus is 80 MB s maximum in synchronous mode for LC LP models and 160 MB s maximum in synchronous mode for MC MP models Such a high data transfer rate on the SCSI bus can be useful with the large capacity buffer in the IDD C141 E064 03EN 5 6 7 8 9 Note The maximum data transfer rate in asynchronous mode may be limited by the response time of initiator and the length of SCSI bus length The maximum data transfer rate in synchronous mode may be limited by the cable length transmission characteristics of the SCSI bus and the connected SCSI device number Continuous block processing The addressing method of data blocks is logical block address The initiator can access data by specifying block number in a logically continuous data space without concerning the physical structure of the track or cylinder boundaries The continuous processing up to 64K 1 blocks in a command can be achieved and IDD can perform continuous read write operation when processing data blocks on several tracks or cylinder Programmable multi segment data buffer The data buffer is 2M bytes for LC LP and 4M bytes for MC MP Data is transferred between SCSI bus and disk media through this data buffer The data buffer is divide
48. ck is allocated in each track At the head switching location in a cylinder the first logical data block in track t 1 is allocated at the sector position which locates the track skew behind the sector position of the last logical data block sector in track t At the cylinder switching location like the head switching location the first logical data block in a cylinder is allocated at the sector position which locates the cylinder skew behind the last logical sector position in the preceding cylinder The last logical sector in the cylinder is allocated when formatting and is an unused spare sector C141 E064 03EN V INDEX md a n l ra s 11 skew skew p Track skew aa 3n 5 Aa oo jan Cylinder skew rr pt 0 Leading logical LBA Logical data block address sector in cylinder p l Figure 3 5 Track skew cylinder skew The number of physical sectors track skew factor and cylinder skew factor corresponding to the skew time varies depending on the logical data block length because the track skew and the cylinder skew are managed for individual sectors The IDD automatically determines appropriate values for the track skew factor and the cylinder skew factor according to the specified logical data block length The value can be read out by the MODE SENSE or MODE SENSE EXTENDED command after the track has been formatted C141 E064 03EN 3 7 3 1 4 Sector
49. co FUJITSU MAF3364LC LP MC MP SERIES MAE3182LC LP MAE3091LC LP SERIES MAG3182LC LP MC MP MAG3091LC LP MC MP SERIES DISK DRIVES PRODUCT MANUAL C141 E064 03EN wwe Specification No C141 E064 EN The contents of this manual is subject to change without prior notice All Rights Reserved Copyright 1999 FUJITSU LIMITED C141 E064 03EN i This page is intentionally left blank FOR SAFE OPERATION Handling of This manual This manual contains important information for using this product Read thoroughly before using the product Use this product only after thoroughly reading and understanding especially the section Important Alert Items in this manual Keep this manual handy and keep it carefully FUJITSU makes every effort to prevent users and bystanders from being injured or from suffering damange to their property Use the product according to this manual Functional Limitations There may be certain functional limitations concerning the specifications and functions of the products covered by this manual depending on the equipment version especially concerning the following functions Versions in which there functions can be used will be communicated through ENGINEERING CHANGE REQUEST NOTICE issued by Fujitsu Function Equipment Version Which Supports These Functions Equipment EPROM Standard INQUIRY Data Product Version No Version Revision ASCII No READ RAM Command
50. command set of the IDD allow the user to construct a high performance reliable disk subsystem with large storage capacity C141 E064 03EN 1 1 1 1 1 2 3 4 Standard Features Compactness Since the SCSI controller circuit is embedded in the standard 3 5 inch fixed disk drive form factor the IDD is extremely compact The IDD can be connected directly to the SCSI bus of the host system SCSI CCS standard The IDD provides not only SCSI basic functions but also the following features Arbitration Disconnection reselection Data bus parity Command set which meets the logical specification of the SCSI CCS Common Command Set for Direct Access Device requirements Rev 4 B The SCSI commands can manipulate data through logical block addressing regardless of the physical characteristics of the disk drive This allows software to accommodate future expansion of system functions 8 bit SCSI 16 bit SCSI The IDD has 16 bit data bus width 16 bit SCSD which have the wide transfer function suitable for SCSI 2 This is also available as 8 bit data bus e 8 bit SCSI Up to eight SCSI devices can be connected on the same SCSI bus 16 bit SCSI Up to 16 SCSI devices can be connected on the same SCSI bus For the ultra SCSI model number of connectable SCSI devices on the same SCSI bus is varied as follows e Up to 4 SCSI devices having capacitance of 25 pF Cable length of up to 3 0 m e 5 08 SCSI devices having capa
51. d into 1 to 32 segments This feature provides the suitable usage environment for users Since the initiator can control the disconnect reconnect timing on the SCSI bus by specifying the condition of stored data to the data buffer or empty condition of the data buffer the initiator can perform the effective input output operations with utilizing high data transfer capability of the SCSI bus regardless of actual data transfer rate of the disk drive Read ahead cache feature After executing the READ command the IDD reads automatically and stores prefetches the subsequent data blocks into the data buffer Read ahead caching The high speed sequential data access can be achieved by transferring the data from the data buffer without reaccessing the disk in case the subsequent command requests the prefetched data blocks Command queuing feature The IDD can queue maximum 128 commands and optimizes the issuing order of queued commands by the reordering function This feature realizes the high speed processing Recordering algorithm is adopted to prevent a specific command from staying in a queue for more than 3 seconds Reserve and release functions The IDD can be accessed exclusively in the multi host or multi initiator environment by using the reserve and release functions C141 E064 03EN 1 3 10 11 12 13 14 15 16 17 Error recovery The IDD can try to recover from errors in SCSI bus or the disk dri
52. dimensions L n HQ IEEE RE eee 4 1 AAD MOU titi B oce UERBO NN mu 4 8 4 1 3 Notes on fnoUnting iu nete ode ete eo tet edu atc en i et ee ett es 4 8 4 2 Power Supply Requirements Bh RA an putt en o a bun e pada 4 13 C141 E064 03EN xi 4 3 Connection Reguirements oooooooWoWomooo mna 4 16 43 1 68 pin connector 16 bit model LP MP 4 16 4 3 2 SCA2 type _ CWT 4 24 4 3 3 Cable connector requirements uso bai Ban aan ea rires 4 28 4 374 External operator panel PUE e ERU IRI REN 4 29 CHAPTER 5 INSTALLATION eeeeeeee eene asta seins sinas tasto seen seen seen seen aeta atn 5 1 5 1 Notes on Hand lin DAVES hak Sedia bana Ne bli eee irr a aa 5 1 5 2 Connections tee ep HE ER bee er de RE EE b orbe ds 5 3 5 3 Setting Terminals ea AN RR nemi een rige 5 5 5 3 D Setting sou nee US e EUR p E e ee S 5 6 5 3 2 B ch mode setting snis u saysi hu dg Anna REOR AERE aman 5 7 5 3 3 Mode settings edet e e aa RR ed Ert AU Pelea 5 0 5 4 Mounting yaaa han agama ngan 5 10 54 1 Check before Mounting np tete rete irre eee ep ppt Na 5 10 5 4 2 Mounting procedures tuens NN ei etit pitis 5 10 5 5 Connecting Gables nni gue eed genangan err geehrt eerte 5 11 5 6 Confirming Operations after Installation and Preparation for us
53. e 5 12 5 6 1 Confirming initial operations oooomoooWo W Well 5 12 5 62 Checking SCSI connection u L P L a e Pte p aet e nasha d 5 13 5 6 3 Formatting s suu sich tie asia a RSS IGI ua a 5 16 5 64 Setting Parameters u a IEEE eO naa and aan aa Ea Na 5 18 5 7 Dismounting Drives vs ounce e me eo pi aaa ua Ant Sha 5 22 CHAPTER6 DIAGNOSTICS AND MAINTENANCYE 6 1 6 1 Di gnosti68 n suu au n PR o dd pU 6 1 Gels Selt di gnosti6S oe eee eee ete E ate ERES 6 1 6 1 2 Test programs ras usasapa nee eundo esie 6 4 6 2 Maintenance Information nana rer ederet edo aan 6 5 6 2 1 Mumntenance requiremients 2 dene Pe RE e e Pet e Pu E Decret e ER uen 6 5 6 2 2 Revision AN e ee ep t pte eir PR e hah 6 7 APPENDIX LOCATIONS OF CONNECTORS AND SETTING TERMINALS A 1 1 Locations of Connectors and Setting Terminals LC MC models SCA2 type LVD 16 bit SCSI oooooooWoo ka A 2 xil C141 E064 03EN A 2 Locations of Connectors and Setting Terminals LP MP models 68 pin type LVD 16 bit SCSD aka A 3 APPENDIX B SETTING TERMINALA B 1 B 1 Setting T rminals hee eas Sas es n hi Ie HII bee B 2 APPENDIX C CONNECTOR SIGNAL ALLOCATION
54. e executable commands under the not ready state such as INQUIRY START STOP UNIT is terminated with the CHECK CONDITION status NOT READY 22 logical unit not ready 204 00 during the interval from the spindle motor becomes stable to the IDD becomes ready The executable command under the not ready state is executed in parallel with the initial self diagnostics or is queued by the command queuing feature and is executed after completion of the initial self diagnostics When the command that comes under the exception condition of the command queuing is issued at that time the IDD posts the BUSY status for the command When the error is detected during the initial self diagnostics the CHECK CONDITION status is posted for all commands that were stacked during the initial self diagnostics For the command execution condition refer to Section 1 4 and Subsection 1 7 4 in SCSI Logical Interface Specifications 2 Online self diagnostics SEND DIAGNOSTIC command The INIT can make the IDD execute self diagnostics by issuing the SEND DIAGNOSTIC command The INIT specifies the execution of self diagnostics by setting 1 for the SelfTest bit on the CDB in the SEND DIAGNOSTIC command and specifies the test contents with the UnitOfl bit When the UnitOfl bit on the CDB is set to 0 the IDD executes the hardware function test only once When UnitOfl bit is set to 1 the IDD executes the hardware function test seek positioning test and data write read
55. e motor is stopped Air circulation recirculation filter breather filter The heads disks and actuator are hermetically sealed inside a disk enclosure DE to keep out dust and other pollutants The DE has a closed loop air recirculation system Using the movement of the rotating disks air 1s continuously cycled through a filter This filter will trap any dust generated inside the enclosure and keep the air inside the DE contaminant free To prevent negative pressure in the vicinity of the spindle when the disks begin rotating a breather filter is attached The breather filter also equalizes the internal air pressure with the atmospheric pressure due to surrounding temperature changes Read write circuit The read write circuit utilizes a read channel mounted with a head IC that supports high speed transmission and an EPRAML Extended Partial Response Class 4 Maximum Likelihood modulation demodulation circuit in order to prevent errors being triggered by external noise and to improve data reliability Controller circuit The controller circuit uses LSIs to increase the reliability and uses a high speed microprocessing unit MPU to increase the performance of the SCSI controller C141 E064 03EN 1 9 1 3 System Configuration Figure 1 8 shows the system configuration The IDDs are connected to the SCSI bus of host systems and are always operated as target The IDDs perform input output operation as specified by SCSI device
56. ecorded in the system space of the disk drive as the G list To execute the alternate block allocation the FORMAT UNIT command must be specified e list Growth defect list This list consists of defective logical data block location information specified in a REASSIGN BLOCKS command by the INIT information on defective logical data blocks assigned alternate blocks by means of IDD automatic alternate block allocation information specified as the D list and information generated as the C list They are recorded in the system space on the disk drive The INIT can read out the contents of the P and G lists by the READ DEFECT DATA command Alternate block allocation The alternate data block is allocated to a defective data block sectors in defective sector units by means of the defect management method inside the IDD The INIT can access all logical data blocks in the user space as long as there is no error Spare sectors to which alternate blocks are allocated can be provided in either spare sectors in a cylinder or alternate cylinders See Subsection 3 1 2 for details The INIT can specify the size and area for spare sectors by the MODE SELECT command at the time of the initialization of the disk Both of the following are applicable to the alternate block allocation e Sector slip treatment Defective sectors are skipped and the logical data block corresponding to those sectors is allocated to the next physical sectors This
57. en the parameters are not set or saved with the MODE SELECT or MODE SELECT EXTENDED command the IDD sets the default values for parameters and operates when power is turned on or after reset Although the IDD operations are assured with the default values the operations are not always optimal for the system To obtain the best performance set the parameters in consideration of the system requirements specific to the user This section outlines the parameter setting procedures Refer to Chapter 3 of SCSI Logical Interface Specifications for further details of the MODE SELECT and MODE SELECT EXTENDED commands and specifying the parameters IMPORTANT 1 At factory shipment of the IDD the saving operation for the MODE SELECT parameter is not executed So if the user does not set parameters the IDD operates according to the default value of each parameter 2 The model select parameter is not saved for each SCSI ID of but as the common parameter for all IDs the multi INIT System parameter setting cannot be changed for each INIT 3 Once parameters are saved the saved value is effective as long as next saving operation is executed from the INIT For example even if the initialization of the disk is performed by the FORMAT UNIT command the saved value of parameters described in this section is not affected 4 When the IDD to which the saving operation has been executed on a system is connected to another system the user must pay at
58. enance Preventive maintenance such as replacing air filters is not required A CAUTION Damage Do not open the DE in the field because it is completely sealed Service life The service life under suitable conditions and treatment is as follows The service life is depending on the environment temperature Therefore the user must design the system cabinet so that the average DE surface temperature is as possible as low e DE surface temperature 45 C or less 5 years e DE surface temperature 46 C to 50 4 years e DE surface temperature 51 C to 55 3 years e DE surface temperature 56 C and more strengthen cooling power so that DE surface temperature is 55 C or less Even if the IDD is used intermittently the longest service life is 5 years C141 E064 03EN 6 5 3 4 Note The average DE surface temperature means the average temperature at the DE surface throughout the year when the IDD is operating T2 C T1 C gt tl t2 T1xt1 T2xt2 A DE surface t ture verage surface temperature mo Parts that can be replaced in the field The PCA cannot be replaced in the field The DE cannot be replaced in the field Service system and repairs Fujitsu has the service system and repair facility for the disk drive Contact Fujitsu representative to submit information for replacing or repairing the disk drive Generally the following information must be included a b
59. erminates However the initiator can recover the twice error by issuing the same command again When an error is detected in a data block in the data area recovery data is rewritten and verified in automatic alternate block allocation during the execution of the READ or READ EXTENDED command Alternate block allocation will not be made for the data block if recovery is successful Example Even if the data error which is recoverable by the WRITE LONG command is simulated automatic alternate block allocation will not be made for the data block C141 E064 03EN CHAPTER 4 INSTALLATION REQUIREMENTS 41 Mounting Requirements 42 Power Supply Requirements 4 3 Connection Requirements This chapter describes the environmental mounting power supply and connection requirements 4 1 Mounting Requirements 4 1 1 External dimensions Figures 4 1 to 4 6 show the external dimensions of the IDD and the positions of the holes for the IDD mounting screws Note Dimensions are in mm C141 E064 03EN 4 1 Hen Ho I I m Cim irae 44 45 0 2 95 25 0 3 fl UGUUUUUUUDUUUUDUDUDDUUCUUUUUDDUDUUUR I 101 640 3 AN AL Le J Z Figure 4 1 External dimensions MAF series LC MC C141 E064 03EN 146 0 0 5 3 0 41 10 6 32UNC WT 95 25 0 3 101 6 0 3 A E C
60. ermines the operation mode when the power supply is turned on or the microcode is downloaded In both modes stopping or restarting the spindle motor can be controlled by specifying the START STOP UNIT command Table 5 3 Motor start mode setting Pets 5 CN2 11 12 CN2 11 12 Start timing of the spindle motor LP MP LC MC Starting of the motor is controlled with the START STOP Open Short UNIT command The motor is started immediately after the power supply is turned on or the microcode is downloaded pae D Setting at factory shipment Refer to Chapter 3 of the SCSI Logical Interface Specifications for details of the START STOP UNIT command 3 Write protect When the write protect function is enabled writing to the disk medium is disabled Table 5 4 Write protect setting CN2 Write operation is enabled Open 1 Write operation is disable Short Setting at factory shipment 4 Setting of the SCSI interface operation mode By establishing a short circuit between the 15 and 16 CN2 setting terminals the SCSI interface operation mode is forcibly set to the single ended mode When this setup terminal is open the IDD automatically identifies the DIFFSNS signal level on the SCSI bus and the IDD SCSI interface operation mode is set to the operation mode 5 8 C141 E064 03EN 5 Table 5 5 Setting of the SCSI interface operation mode CN2 Follows the DIFFSNS signal level on the SCSI bus Set
61. f one cylinder and several cylinders alternate cylinders in the user space are allocated as alternate areas according to the user s assignment MODE SELECT command See Subsection 3 1 2 for details C141 E064 03EN 3 1 Cylinder 37 4 to Internal test cylinder Internal test space Cylinder 30 Cylinder 26 SA22 to System space Cylinder 4 ylinder SAO Cylinder 0 Cylinder 1 Primary Cylinder 0 e to e 29 Primary Cylinder m 1 User space m n 1 Cylinder Slip n m n m n 1 Spare sector for each cylinder i 10 200 9 866 12 000 MAP MAG Spare sectors on the last track in each cylinder are not necessarily placed at the end of the track because of a track skew or a cylinder skew Details are explained in Subsection 3 1 3 Figure 3 1 Cylinder configuration Apart from the above logical configuration the IDD intends to increase the storage capacity by dividing all cylinders into several zones and changing a recording density of each zone Tables 3 1 and 3 3 show the zone layout and the track capacity C141 E064 03EN Table3 1 Zone layout and track capacity MAE series asua s Cylinder 0to 1 699 1 700 to 3 600to 4 550 to 4 910to 5 800to 6 420 to K dE QR 3E EC AE E 425 414 408 396 384 378 zw 5 nu s Cylinder 6 790 to 8 090to 8 890to 9 250to 9 930to 10 510 to 11 880 to 8 089 8 889 9 249 9 929 10 509 11 879 11 999
62. ghtening the screws At least 2 5mm of clearance is required between the DE and the frame Indicated in Figure 4 8 4 When an electric driver is in use less than low impact device specifications must be used 5 10 C141 E064 03EN 5 5 Connecting Cables Connect the IDD and system with the following cables See Section 4 4 for further details of the requirements for IDD connector positions and connecting cables e Power cable e SCSI cable e External operator panel cable if required The general procedures and notes on connecting cables are described below Especially pay attention to the inserting direction of each cable connector ACAUTION Damage I Check that system power is off before connecting or disconnecting cables 2 Do not connect or disconnect cables when power is on a Connect power cable b Connect the external operator panel if required for system c Connect the SCSI cable d Fix the cables so that they do not touch the DE and PCAs or so that the smooth flow of the cooling air in the system cabinet is assured A CAUTION Damage I Be careful of the insertion directions of the SCSI connectors With the system in which terminating resistor power is supplied via the SCSI cable if the power is turned on the overcurrent protection fuse of the terminating resistor power supplier may be blown or the cable may be burnt if overcurrent protection is not provided When the recommended parts listed in
63. gure 3 7 is examples of the alternate block allocation during the FORMAT UNIT command execution C141 E064 03EN 3 13 Example 1 Example 2 nrepresents a logical data block number Defective sector Unused spare sector Figure 3 7 Alternate block allocation by FORMAT UNIT command If the data block verifying operation certification is not permitted DCRT flag 0 in the FORMAT UNIT command the IDD checks all initialized logical data blocks by reading them out after the above alternate block allocation is made to initialize format the disk If a defective data block is detected during the check the IDD allocates the alternate block to the defective data block This alternate block allocation is made by means of alternate sector treatment only like processing by the REASSIGN BLOCKS command even if unused spare sectors exists in the same cylinder 3 14 C141 E064 03EN 2 Alternate block allocation by REASSIGN BLOCKS command When the REASSIGN BLOCKS command is specified the alternate block is allocated to the defective logical data block specified by the initiator by means of alternate sector treatment If there are unused spare sectors in the same cylinder as the specified defective logical data block the alternate block is allocated to these unused spare sectors However the alternate block is allocated to unused spare sectors in the a
64. he FORMAT UNIT command The FORMAT UNIT command initializes all sides of the disk using the P lists verifies data blocks after initialization and allocates an alternate block for a defect block detected with verification With initialization the value 00 is written into all bytes of all logical data blocks Only the position information of defect blocks detected with verification is registered in the G list The specifications are as follows a Specifying CDB Specify 0 for the FmtData bit and the CmpLst bit on CDB 000 for the Defect List Format field and data pattern written into the data block at initialization for the initializing data pattern field Format parameter When the values in step a are specified with CDB the format parameter is not needed C141 E064 03EN 5 17 5 6 4 5 18 Setting parameters The user can specify the optimal operation mode for the user system environments by setting the following parameters with the MODE SELECT or MODE SELECT EXTENDED command Error recovery parameter Disconnection reconnection parameter Caching parameter Control mode parameter With the MODE SELECT or MODE SELECT EXTENDED command specify 1 for the SP bit on CDB to save the specified parameter value on the disk This enables the IDD to operate by using the parameter value set by the user when power is turned on again When the system has more than one INIT different parameter value can be set for each INIT Wh
65. he REQUEST SENSE command The RECEIVE DIAGNOSTIC RESULTS command cannot read out the error information detected in the self diagnostics Damage Do not open the DE in the field because it is completely sealed Data loss Save data stored on the disk drive before requesting repair Fujitsu does not assume responsibility if data is destroyed during servicing or repair viii C141 E064 03EN MANUAL ORGANIZATION PRODUCT MANUAL This manual SCSI Physical Interface Specifications SCSI Logical Interface Specifications Maintenance Manual General Description Specifications Data Format Installation Requirements Installation Diagnostics and Maintenance SCSI Bus SCSI Message SCSI Bus Error Recovery Processing Command Processing Data Buffer Management Command Specification Sense Data and error Recovery Procedure Disk Medium Management Specifications and Equipment Configuration Maintenance and Diagnostics Error Analysis Removal and Replacement Procedures Principle of Operation C141 E064 03EN This page is intentionally left blank CONTENTS CHAPTER1 GENERAL DESCRIPTION ir 1 1 Standard Features unte beo fio ete Reo e e n Pe e Hee Po Eae te eds 1 2 1 2 Hardware Sttuctute ui enenatis 1 5 1 3 System Configuration n a tutup had aka enak aan 1 10 CHAPTER2 SPECIFICATION S
66. he checking procedure of SCSI connection differs depending on the setting of the motor start mode and UNIT ATTENTION report mode Formatting Since the disk drive is formatted with a specific default data format for each model part number when shipped from the factory the disk need not be formatted initialized when it is installed in the system However when the system needs data attributes different from the default format all sides of the disk must be formatted initialized according to the procedures below The user can change the following data attributes at initialization e Logical data block length e Number of logical data blocks or number of cylinders in the user space e Alternate spare area size This section outlines the formatting at installation Refer to Chapters 3 and 5 of SCSI Logical Interface Specifications for further details MODE SELECT MODE SELECT EXTENDED command Specify the format attributes on the disk with the MODE SELECT or MODE SELECT EXTENDED command The parameters are as follows a Block descriptor Specify the size byte length of the logical data block in the data block length field To explicitly specify the number of logical data blocks specify the number in the number of data blocks field Otherwise specify 0 in number of data blocks field In this case the number of logical data blocks after initialization is determined by the value specified in the format parameter page code 3
67. ility which checks internal controller functions and drive operations to facilitate testing and repair C141 E028 01 EN 18 19 20 1 2 Low power consumption By using highly integrated LSI components the power consumption of the IDD is very low and this enables the unit to be used in wide range of environmental conditions Low noise and low vibration The noise level is low approx 4 2 bels for MAF series and 4 0 bels for MAE and MAG series This makes it ideal for office use The IDD has rubber vibration isolators which minimize the transfer of vibration Microcode downloading The IDD implements the microcode download feature This feature achieves easy maintainability of the IDD and function enhancing Hardware Structure An outer view of the IDD is given in Figures 1 1 to 1 6 The IDD is composed of the disk head spindle motor hermetically sealed disk enclosure DE with actuator and air circulation filter as well as read write pre amp with the print card unit PCA of the controller Figure 1 1 MAE series LC MC outer view C141 E064 03EN 1 5 6 Figure 13 MAE series LC outer view C141 E064 03EN Figure 14 MAE series LP outer view Figure 1 6 MAG series LP MP outer view C141 E064 03EN 1 Disks The disks have an outer diameter of 95 mm 3 74 inch and inner diameter of 25 mm 0 98 inch for MAE series and 84 mm 3 3 inch outer diameter and 25 mm 0 98 inch inner diameter for MAF MA
68. inder switching at the location where the track or the cylinder is physically switched See Subsection 3 3 2 for defective alternate block treatment and the logical data block allocation method in case of defective sectors exist on the disk Alternate area Alternate areas in the user space spare sectors in the cylinder and alternate cylinders are not included in the above logical data block addresses Access to sectors which are allocated as an alternate block in the alternate area is made automatically by means of IDD sector slip treatment or alternate block treatment explained in Subsection 3 3 2 so the user does not have to worry about accessing the alternate area The user cannot access with specifying the data block on the alternate area explicitly C141 E064 03EN 3 11 3 3 3 3 1 3 3 2 3 12 Defect Management Defect list Information of the defect location on the disk is managed by the defect list The following are defect lists which the IDD manages P list Primary defect list This list consists of defect location information available at the disk drive shipment and is recorded in a system space The defects in this list are permanent so the INIT must execute the alternate block allocation using this list when initializing the disk e D list Data defect list This list consists of defect location information specified in a FORMAT UNIT command by the INIT at the initialization of the disk This information is r
69. ing drives 5 22 Disconnection 5 20 Disk configuration 1 8 Disk enclosure 1 9 Disks 1 8 Drive parameter 5 17 E ECC 3 9 Environmental requirements 2 4 Environmental specifications 2 4 Environmental temperature 4 10 Error indication of self diagnostics 6 3 Error rate 2 5 Error recovery 1 4 Error recovery during self diagnostics 6 3 Error recovery parameters 5 19 External dimensions 4 1 4 2 4 3 4 4 4 5 4 6 4 7 External magnetic field 4 11 C141 E064 03EN IN 1 External operator panel 4 28 4 29 External operator panel circuit example 4 29 External operator panel connector 4 18 4 19 External operator panel connector signals 4 20 F FG 4 29 FORMAT UNIT command 5 17 Format capacity 3 10 Format parameter 5 17 Function specifications 2 2 G Glist 3 12 G1 3 8 Gaps 3 8 General description 1 1 General notes 5 1 H Hardware function test 6 2 Head configuration 1 8 Heads 1 8 High speed data transfer 1 2 High speed positioning 1 4 Humidity 2 4 Indicating revision number 6 7 Initial self diagnostics 6 2 Inputsignal 4 20 Installation 5 1 5 2 Installation requirements 4 1 Interface connector 4 17 Interface test 6 5 Internal test space 3 4 L LBA 3 8 LUN 1 11 Large capacity 1 4 Leak magnetic flux 4 11 Limitation of side mounting 4 9 Location of connector A 2 A 3 Logical data block addressing 3 11 Low noise 1 5 Low power consumption 1 5 Low vibration 1 5 MODE SELECT EXTEND
70. ion A 5 14 Checking the SCSI connection 5 15 Revision het neret ater ep 6 7 Indicating revision numbers a enne nnnm enne ener 6 8 Locations of connectors and setting terminals LC MC models SCA2 type LVD 16 bit SCSI oooooooWoo oooo Wanna A 2 Locations of connectors and setting terminals LP MP models 68 pin type LVD 16 bit SCSI ooooooWooooooW nennen A 3 C141 E064 03EN XV 2 1 2 2 2 3 3 1 3 2 3 3 3 4 4 1 4 2 5 1 5 2 5 3 5 4 3 2 5 6 5 7 5 8 6 1 B 1 C I C2 D 1 xvi TABLES page Function spec1fiCati onS a rase eaten se eta tenen enn 2 2 Environmental power requirements nennen Waka 2 4 SCSI function specifications oooWooooWoWW nana 2 7 Zone layout and track capacity MAE series ooooWoooWoWo W 3 3 Zone layout and track capacity MAG series oooooooooWooooo W Wo 3 3 Zone layout and track capacity MAF sertes nennen 3 3 Forinat Capacity zie aetate tea teet tete ee tees 3 10 Surface temperat re check point ouis tp dp eed 4 10 Recommended components for connection r 4 28 SCSLEID settin END A1 eei e Rte ha eb emit tere P ES 5 7 Setting SCSI terminal power supply LP MP ooooooWooWom sassa 5 7
71. ion 3 12 3 13 3 14 Alternate cylinder 3 5 Alternate sector treatment 3 12 Alternate spare area 3 5 Atitute 2 4 Automatic alternate block allocation 3 16 Automatic alternate block reassignment 1 4 Average DE surface temperature 2 6 BCRC 3 9 Basic operation test 6 5 Block address of user space 3 11 Block descriptor 5 16 Breather filter 1 9 C CE space 3 5 CN1 4 16 C 2 C 3 CSS 1 8 Cable connection 4 23 Cable connection requirements 4 23 Caching parameters 5 21 Changing revision number at factory shipment 6 7 Check before mounting 5 10 Check items at illegal operation 5 12 Checking SCSI connection 5 13 5 14 5 15 Checking at abnormal end 5 16 Checking procedure 5 13 Command queuing feature 1 3 Compactness 1 2 Confirming Operations after Installation for use 5 12 Confirming initial operations 5 12 Connection requirements 4 16 Connections 5 3 Connector signal allocation C 1 C 2 Connectors of terminals location 4 16 4 24 Contact start stop 1 8 Continuous block processing 1 3 Control mode parameters 5 21 Controller circuit 1 9 Current waveform 4 13 Cylinder configuration 3 1 3 2 Cylinder skew 3 7 D D list 3 12 DC ground 4 28 DE 1 9 Data field 3 9 Data format 3 1 Data security at power failure 2 6 Data space 3 1 Default 5 9 Defect Management 3 12 Defect list 3 12 Defective block slipping 1 4 Delivery 5 2 Diagnosis 1 4 Diagnostics 6 1 Diagnostics and maintenance 6 1 Disconnect
72. lternate cylinder when all spare sectors in the cylinder are used up Figure 3 8 is examples of the alternate block allocation by the REASSIGN BLOCKS command nm 1 Ressign Block 14 Example 2 Ressign Block 16 8 z 18 19120 223 24 25 26 27 S S 223 24 25 26 27 5 S 25 25126127 Alternate sectors Alternate sector The same cylinder Alternate cylinder IS 2 819 12 EE Br an BBE 9 10 12 13 006 i io po fai n represents a logical data block number Defective sector Unused spare sector Figure 3 8 Alternate block allocation by REASSIGN BLOCKS command C141 E064 03EN 3 15 3 3 16 Automatic alternate block allocation If the ARRE flag in the MODE SELECT parameter permits the automatic alternate block allocation the IDD automatically executes the alternate block allocation and data duplication on the defective data block detected during the READ EXTENDED command This allocation method is the same as with the REASSIGN BLOCKS command alternate sector treatment IMPORTANT Automatic alternate block allocation is made only once during the execution of one command If second defective block is detected the alternate block assignment processing for the first defective block is executed but the alternate block assignment processing for the second one is not executed and the command being executed t
73. me Between Failures MTBF MTBF of the IDD during its life time is 1 000 000 hours operating 24 hours day 7 days week average DE surface temperature 40 C or less Note The MTBF is defined as Operating time hours at all field sites MTBF The number of equipment failures from all field sites Failure of the equipment means failure that requires repair adjustments or replacement Mishandling by the operator failures due to bad environmental conditions power trouble host system trouble cable failures or other failures not caused by the equipment are not considered Mean Time To Repair MTTR MTTR is the average time taken by a well trained service mechanic to diagnose and repair a drive malfunction The drive is designed for a MTTR of 30 minutes or less C141 E064 03EN 2 5 3 4 Service life The service life under suitable conditions and treatment is as follows The service life is depending on the environment temperature Therefore the user must design the system cabinet so that the average DE surface temperature is as possible as low DE surface temperature 40 C or less 5 years DE surface temperature 45 C or less 4 5 years DE surface temperature 46 C to50 C 4 years DE surface temperature 51 C to 55 C 3 5 years DE surface temperature 56 and more strengthen cooling power so that DE surface temperature is 55 C or less Even if the IDD is used intermittently the longest service life is 5 yea
74. ment buffer 1 to 32 O Provided X Not provided 1 Single Ended and LVD detect the driver mode by Diffsence signal and automatically change 2 Data bus CRC on MC MP models 3 Refer to 12 of Section 1 1 C141 E064 03EN 2 7 This page is intentionally left blank CHAPTER 3 DATA FORMAT 3 1 Data Space 3 2 Logical Data Block Addressing 3 3 Defect Management This chapter explains data space definition logical data block addressing and defect management on the IDD 3 1 Data Space The IDD manages the entire data storage area divided into the following three data spaces e User space Storage area for user data e Internal test space Reserved area for diagnostic purposes e System space Area for exclusive use of IDD itself The user space allow a user access by specifying data These space can be accessed with the logical data block addressing method described in Section 3 2 The internal test space is used by Read write test of self diagnostics test but user can t use direct access The system space is accessed inside the IDD at power on or during the execution of a specific command but the user cannot directly access the system space Cylinder configuration The IDD allocates cylinders to the user space Internal test space and system space Figure 3 1 is the cylinder configuration Spare areas alternate areas for defective sectors are provided in the user space Several sectors in the last track o
75. n Figure 4 8 the inward projection of the screw from the IDD frame wall at the corner must be 4 mm or less c Tightening torque of screw must be secured with 6kg cm d Impact caused by the electric driver must be within the device specifications e Must be handled on an anti static mat 4 8 C141 E064 03EN Side side mounting 2 5 or more 2 5 or more 2 5 or more A B DE o Bottom side mounting Frame of system cabinet 4 or less 2 5 or 6 Tw _ 4 less gt E NN Lm gt NN x 2 5 screw More screw Details of A Details of B Unit mm Figure 4 8 Mounting frame structure 2 Limitation of side mounting Mount the side using the screw holes at both the ends as shown in Figure 4 9 Do not use the center hole Holes for mounting screw Do not use these holes Holes for mounting screw Use four holes No 1 4 to mount Figure 4 9 Limitation of side mounting C141 E064 03EN 3 Environmental temperature Temperature condition at installed in a cabinet is indicated with ambient temperature measured 3 cm from the disk drive At designing the system cabinet consider following points e Make a suitable air flow so that the DE surface temperature does not exceed 55 A CAUTION Heat An air flow with an adequate wind velocity must be maintained to deal with much heat generated from the MAF3364xx Reference value An air flow
76. nctions of the above disk drive and gives the requirements and procedures for installing it into a host computer system This manual is written for users who have a basic understanding of fixed disk drives and their use in computer systems The MANUAL ORGANIZATION section describes organization and scope of this manual The need arises use the other manuals Chapter 1 GENERAL DESCRIPTION This chapter introduces the MAF series MAE series and MAG series disk drives and discusses their standard features hardware and system configuration Chapter 2 SPECIFICATIONS This chapter gives detailed specifications of the MAF series MAE series and MAG series disk drives and their installation environment Chapter 3 DATA FORMAT This chapter describes the data structure of the disk the address method and what to do about media defects Chapter 4 INSTALLATION REQUIREMENTS This chapter describes the basic physical and electrical requirements for installing MAF series MAE series and MAG series disk drives Chapter 5 INSTALLATION This chapter explains how to install MAF series MAE series and MAG series disk drives It includes the notice and procedures for setting device number and operation modes mounting the disk drive connecting the cables and confirming drive operation Chapter 6 DIAGNOSIS and MAINTENANCE This chapter describes the automatic diagnosis and maintenance of the MAF series MAE series and MAG series disk drive APPE
77. nd Yes REQUEST SENSE command Selftest 1 Unit Of 1 No parameter Timeout 60 s or more REQUEST SENSE command 2 Processing when the command ended with CHECK CONDITION status ncluding execution time Abnormal end of initial self diagnostics REQUEST SENSE command Figure 5 4 Checking the SCSI connection A 5 14 C141 E064 03EN Motor starts by START STOP command command No Yes REQUEST SENSE command UNIT ATTENTION report mode No report SCSI standard BS m NOT READY gt e Yes Yes START STOP UNIT command Immed 0 Executing time about 60 seconds b No GOOD status REQUEST SENSE command To Figure 5 4 ncluding executing time of initial self diagnostics Abnormal end Figure 5 5 Checking the SCSI connection B C141 E064 03EN 5 15 2 5 6 3 1 5 16 Checking at abnormal end a When sense data can be obtained with the REQUEST SENSE command analyze the sense data and retry recovery for a recoverable error Refer to Chapter 4 of SCSI Logical Interface Specifications for further details b Check the following items for the SCSI cable connection e connectors including other SCSI devices are connected correctly e The terminating resistor is mounted on both ends of the cable e Power is connected to the terminating resistor c Check the setting of the terminals Note that t
78. ndle motors should be started sequentially using one of the following procedures to prevent overload of the power supply unit For how to set a spindle motor start control mode see Subsection 5 3 2 a Issue START STOP commands at more than 12 second intervals to start the spindle motors For details of this command specification refer to SCSI Logical Interface Specifications b Turn on the 12 VDC power in the power supply unit at more than 12 second intervals to start the spindle motors sequentially Power supply to SCSI terminating resistor If power for the terminating resistor is supplied from the IDD to other SCSI devices through the SCSI bus the current carrying capacity of the 5 VDC power supply line to the IDD must be designed with considering of an increase of up to 200 mA A method of power supply to the terminating resistor is selected with a setting terminal on the IDD See Subsection 5 3 2 for this selection For the electrical condition of supplying power to the terminating resistor refer to Subsection 1 4 2 in SCSI Physical Interface Specifications Noise filter To eliminate AC line noise a noise filter should be installed at the AC input terminal on the IDD power supply unit The specification of this noise filter is as follows e Attenuation 40 dB or more at 10 MHz e Circuit construction T configuration as shown in Figure 4 17 is recommended Input C Output Figure 4 17 noise filter
79. netic flux The IDD uses a high performance magnet to achieve a high speed seek Therefore a leak magnetic flux at surface of the IDD is large Mount the IDD so that the leak magnetic flux does not affect to near equipment 7 Others A hole or screw portion as shown in Figure 4 12 is used for adjusting air pressure balance between inside and outside the DE Do not fill with a seal or label Seals on the DE prevent the DE inside from the dust Do not damage or peel off labels C141 E064 03EN 4 11 12 MAF series MAG series MAE series Figure 4 12 Air pressure adjustment hole C141 E064 03EN 4 2 1 2 3 Power Supply Requirements Allowable input voltage and current The power supply input voltage measured at the power supply connector pin of the IDD receiving end must satisfy the requirement given in Subsection 2 1 3 For other requirements see Items 4 and 5 below Current waveform reference Figure 4 13 shows the waveform of 12 VDC MAE series series MAG series Figure 4 13 Current waveform 12 VDC Power on off sequence a The order of the power on off sequence of 5 VDC and 12 VDC supplied to the IDD does not matter b In a system which uses the terminating resistor power supply signal TERMPWR on the SCSI bus the requirements for 5 given in Figure 4 14 must be satisfied between the IDD and at least one of the SCSI devices supplying power to tha
80. ng operation is checked with confirming the physical address information by reading the ID field LBA from the data block on track 0 after completion of the seek operation to the target cylinder c Write read test This test check the write read function by using the Internal test space of the disk drive Initial self diagnostics When power is turned on the IDD starts initial self diagnostics The initial self diagnostics checks the basic operations of the hardware functions If an error is detected in the initial self diagnostics the LED on the drive front panel blinks In this status the IDD posts the CHECK CONDITION status to all I O operation requests other than the REQUEST SENSE command When the CHECK CONDITION status is posted the INIT should issue the REQUEST SENSE command The sense data obtained with the REQUEST SENSE command details the error information detected with the initial self diagnostics Even if CHECK CONDITION status and sense data are posted the LED continues blinking Only when the SCSI bus is reset the BUS DEVICE RESET message is issued or the power is turned off or re turned on this status can be cleared When this status is cleared the IDD executes the initial self diagnosis again C141 E064 03EN The IDD does not reply to the SCSI bus for up to 2 seconds after the initial self diagnostics is started After that the IDD can accept the I O operation request correctly but the received command except th
81. number of tracks heads number of alternate spare sectors per cylinder x number of cylinders in the zone Formatted capacity total of sectors of all zones number of sectors per track in last zone x number of tracks heads x number of alternate cylinders number of physical sectors in logical block x logical data block length The following formula must be used when the number of logical data blocks are specified with the parameter in the MODE SELECT or MODE SELECT EXTENDED command Format capacity logical data block length x number of logical data blocks The logical data block length the maximum logical block address and the number of the logical data blocks can be read out by a READ CAPACITY MODE SENSE or MODE SENSE EXTENDED command after initializing the disk medium Table3 4 Format capacity Model Data block length User blocks Format capacity GB MAE3182 series E 35 700 480 18 2 MAE3091 series 17 826 240 9 1 MAF3364 series 71 161 520 36 4 MAG3182 series 35 694 860 18 2 Note Total number of spare sectors is calculated by adding the number of spare sectors in each primary cylinder and the number of sectors in the alternate cylinders C141 E064 03EN 3 2 1 2 Logical Data Block Addressing Independently of the physical structure of the disk drive the IDD adopts the logical data block addressing as a data access method on the disk medium The IDD relates a logical data block
82. of disk drive is a single logical unit the selectable number of SCSI ID and LUN are as follows e SCSIID 8 bit SCSI Selectable from to 7 switch selectable 16 bit SCSI Selectable from 0 to 15 switch selectable e LUN 0 fixed C141 E064 03EN 1 11 This page is intentionally left blank CHAPTER 2 SPECIFICATIONS 2 Hardware Specifications 2 2 SCSI Function Specifications This chapter describes specifications of the IDD and the functional specifications of the SCSI 2 1 Hardware Specifications 211 Model name and part number Each model has a different data format and front panel type when shipped See Appendix D for the model name type and product number The data format can be changed by reinitializing with the user s system C141 E064 03EN 2 1 2 1 2 Function specifications Table 2 1 shows the function specifications of the IDD Table 2 1 uma L5 Seek time 3 Minimum 0 7 ms Read 0 7 ms Read 0 7 ms Read Read Write 1 1 ms Write 0 9 ms Write 1 1 ms Write Average 7 0 ms Read 5 5 ms Read 5 2 ms Read 7 5 ms Write 6 0 ms Write 5 8 ms Write Maximum 12 4 ms Read 12 0 ms Read 11 0 ms Read 13 5 ms Write 13 0 ms Write 12 0 ms Write Start stop time Start time 30 s typ 60 s max 4 Stop time 30s typ Recording mode EPRAML Function specifications Recording density max 270 kbpi 275 kbpi Track density 13 250 TPI 13 500 TPI Extern
83. otating until the START STOP UNIT command for the start is issued The INIT needs to issue the START STOP UNIT command to start the spindle motor by the procedure in Subsection 5 6 2 The disk drive enters the READY status in 60 seconds after the START STOP UNIT command is issued At this time the IDD reads system information from the system space on the disk The LED blinks during command execution Check items at illegal operation a b Check that cables are mounted correctly Check that power and voltages are supplied correctly measure them with the IDD power connection position Check the setting of each setting terminal Note that the initial operation depends on the setting of the motor start mode and LED display requirements C141 E064 03EN 5 6 2 1 d If an error is detected in initial self diagnosis the LED blinks In this case it is recommended to issue the REQUEST SENSE command from the initiator host system to obtain information sense data for error analysis IMPORTANT The LED lights during the IDD is executing a command However in same commands the lighting time is only an instant Therefore it seems that the LED blinks or the LED remains off Checking SCSI connection When the initial operation is checked normally after power is turned on check that the IDD is connected to the SCSI bus from the host system Although checking the connection depends on the structure of the host sys
84. programs The basic operations of the IDD itself can be checked with the self diagnostic function However to check general operations such as the host system and interface operations in a status similar to the normal operation status a test program that runs on the host system must be used The structure and functions of the test program depend on the user system requirements Generally it is recommended to provide a general input output test program that includes SCSI devices connected to the SCSI bus and input output devices on other I O ports Including the following test items in the test program is recommended to test the IDD functions generally C141 E064 03EN 1 2 3 4 6 2 6 2 1 1 2 Interface SCSI bus test The operations of the SCSI bus and data buffer on the IDD are checked with the WRITE BUFFER and READ BUFFER commands Basic operation test The basic operations of the IDD are checked by executing self diagnosis with the SEND DIAGNOSTIC command see Subsection 6 1 1 Random sequential read test The positioning seek operation and read operation are tested in random access and sequential access modes with the READ READ EXTENDED or VERIFY command Write read test By using a data block in the internal test space the write read test can be executed with an arbitrary pattern for a disk drive in which user data is stored Maintenance Information Maintenance requirements Preventive maint
85. r control information The above information are duplicated in several different locations for safety Note The system space is also called SA space C141 E064 03EN Alternate spare area The alternate spare area is provided in the last track of each primary cylinder in the user space and in the last track of the cylinder and the alternate cylinder The spare area in each cylinder is placed at the end of the last track as shown in Figure 3 2 These spare sectors are located in the end of the track logically not necessarily located at the end physically because of track skew or cylinder skew Details are explained on Subsection 3 1 3 Size can be specified by the MODE SELECT command The number of spare sectors per cylinder can be specified exceeding 32 The default value of number of 9 space sectors per cylinder is 20 Track 0 Sector 0 1 n m 1 n m n 2 n 1 Track 1 n ntl 2 1 2n m 2n 2 2 1 a merecen Last track SPRI SPRm 1 SPRm Spare sectors m sectors Figure 3 2 Spare area in cylinders An alternate cylinder is used when spare sectors in a cylinder are used up or 0 is specified as the number of spare sectors in a cylinder Several cylinders at the end of the user space are allocated as alternate cylinders as shown in Figure 3 3 The number of alternate cylinder is 1 The user space and the CE space share the alternate cylinders
86. r the parameter values to be set It is recommended to evaluate the validity of the specified values by measuring performance in an operation status under the average system load requirements C141 E064 03EN 3 Caching parameters The following parameters are used to optimize IDD Read Ahead caching operations under the system environments Refer to Chapter 2 of SCSI Logical Interface Specifications for further details a Read caching parameters Parameter Default value RCD Disabling Read Ahead caching operations 0 enabled WCE Write Cache Enable 0 disabled MS Specifying the multipliers of minimum 0 Specifying prefetch and maximum prefetch absolute value parameters DISC Prefetch operation after track switching 0 inhibit during prefetching Number of blocks for which prefetch is suppressed X FFFF Minimum prefetch X 0000 Maximum prefetch X 00XX 1 cache segment Number of blocks with maximum prefetch restrictions X FFFF Number of segments X 4 Notes 1 When Read Ahead caching operations are disabled by the caching parameter these parameter settings have no meaning except write cache feature 2 Determine the parameters in consideration of how the system accesses the disk When the access form is not determined uniquely because of the processing method the parameters can be re set actively 3 For sequential access the effective access rate can be increased by enabling Read Ahead ca
87. read test 6 2 Z Zone layout 3 3 C141 E064 03EN IN 3 Comments concerning this manual can be directed to one of the following addresses FUJITSU LIMITED Business Planning Solid Square East Tower 580 Horikawa cho S aiwai ku Kawasaki 210 0913 J apan TEL 81 44 540 4056 FAX 81 44 540 4123 FUJITSU COMPUTER PRODUCTS OF AMERICA INC 2904 Orchard P arkway San J ose California 95134 2009 U S A TEL 1 408 432 6333 FAX 1 408 432 3908 FUJITSU CANADA INC 2800 Matheson Blvd East Mississauga Toronto Ontario LAW 4X5 CANADA TEL 1 905 602 5454 FAX 1 905 602 5457 FUJITSU EUROPE LIMITED 2 Longwalk Road Stockley Park Uxbridge Middlesex UB11 1AB ENGLAND TEL 44 81 573 4444 FAX 44 81 573 2643 FUJITSU DEUTSCHLAND GmbH Frankfurter Ring 211 80807 M nchen GERMANY TEL 49 89 323780 FAX 49 89 32378100 FUJITSU NORDIC AB Kung Hans V g 12 S 192 68 Sollentura SWEDEN TEL 46 8 626 4500 FAX 46 8 626 4588 FUJITSU ITALIA S p A Via Nazario Sauro 38 20099 Sesto S Giovanni MI ITALY TEL 39 2 26294 1 FAX 39 2 26294 201 FUJITSU FRANCE S A 1 Place des Etas Unis SILIC 310 94588 Rungis Cedex FRANCE TEL 33 1 41 80 38 80 FAX 33 1 41 80 38 66 FUJITSU ICL ESPA A S A Almagro 40 28010 Madrid SPAIN TEL 34 91 681 8100 FAX 34 91 681 8125 FUJITSU AUSTRALIA LIMITED 2 J ulius Avenue Cnr Delhi Road North Ryde N S W 2113 AUSTRALIA TEL 61 2 9776 4555 FAX 61 2 9776 4556 FUJITS
88. recommended C141 E064 03EN 4 15 4 3 Connection Requirements 4 3 1 68 pin connector 16 bit SCSI model LP MP 1 Connectors Figures 4 18 show the locations of connectors and terminals on the 68 pin connector type 16 bit SCSI LP MP model e Power supply connector e SCSI connector e External operator panel connector External operator panel connector CN2 Power supply connector CN1 External operator panel connector SCSI connector CN1 CN1 Figure 4 18 Connectors and terminals location LP MP 4 16 C141 E064 03EN 2 SCSI connector and power supply connector a 16 bit SCSI The connector for the SCSI bus is an unshielded P connector conforming to SCSI 3 type which has two 34 pin rows spaced 1 27 mm 0 05 inch apart Figure 4 19 shows the SCSI connector See Section C 2 in Appendix C for the signal assignments on the SCSI connector For details on the physical electrical requirements of the interface signals refer to Sections 1 3 and 1 4 in the SCSI Physical Interface Specifications PinAll PinAI 2 0 mm Symbol mm Inch Remarks DI 2 54 0 100 D2 1 27 0 050 The tolerance is 0 127 mm 0 005 inch unless otherwise Figure 4 19 16 bit SCSI interface connector b Power supply connector Figure 4 20 shows the shape and the terminal arrangement of the output connector of DC power supply 12 VDC 12 VDC RETURN GND 5
89. result of self diagnostics 6 3 Reserve function 1 3 Revision label 6 7 Revision numbers 6 7 S SA space 3 4 SB 3 8 SCA2 type SCSI model 4 24 SCSIID 1 11 SCSI ID external input 4 20 SCSI bus configuration 1 10 SCSI bus connection 5 3 SCSI bus test 6 5 SCSI connector 4 17 4 25 SCSI function specifications 2 7 SCSI CCS standard 1 2 SG 4 29 SG terminal 4 18 Sector format 3 8 Sector slip treatment 3 12 Seek test 6 2 Self diagnostics 6 1 Seguential read test 6 5 Seguential starting of spindle motor 4 15 Service clearance area 4 11 Service life 2 6 6 5 Service system and repairs 6 6 Setting SCSI terminal 5 7 Setting SCSI terminal power supply 5 7 Setting check list 5 10 Setting parameters 5 18 Setting terminals 5 5 5 6 B 1 B 2 Setting terminals position 5 5 Shock 2 4 Spare sector 3 5 Specifications 2 1 Specifying CDB 5 17 Spindle motor 1 9 Standard features 1 2 Start Stop of spindle motor 1 4 Storage 5 2 Structure 1 5 Surface temperature check point 4 10 Surface temperature measurement points 4 10 Sync byte 3 8 System configuration 1 10 System space 3 4 T TERMON 4 28 Temperature 2 4 Terminatoron 4 28 Test programs 6 4 Track capacity 3 3 Track format 3 6 Track skew 3 7 U Unrecoverable error rate 2 5 User space 3 4 V Verify error recovery parameters 5 19 Vibration 2 4 w Wide range 1 5 Write circuit 1 9 Write protect 5 8 Write protect setting 5 8 Write
90. ro program reads the SCSI ID immediately after the power supply to the IDD has been switched on it is possible to set up the SCSI ID by short circuiting CN1 A7 and CNI A8 C141 E064 03EN 4 21 IDD 5 VDC T m CN2 21 LED V 74LS06 or equivalent LED on IDD front 150 Q Output level Function 0 to 0 4 VDC Io 15mA max LED on 2 5 to 5 25 VDC LED off Figure 4 24 Output signal for external LED e WTP Input signal CN1 A12 and CN2 9 10 pin By connecting the CN1 A12 and CN2 10 pins to the GND writing operations into the IDD disc media are set to disable 4 22 C141 E064 03EN 6 Cable connection requirements The requirements for cable connection between the IDD host system and power supply unit are given in Figure 4 25 Recommended components for connection are listed in Table 4 1 External operator panel example To next SCSI device S3 or S4 IDD Power cable Figure 4 25 SCSI cables connection C141 E064 03EN 4 23 4 3 2 SCA2type SCSI model LC MC 1 Connectors Figure 4 26 shows the locations of connectors and terminals on the SCA2 type SCSI model SCSI connector including power supply connector SCSI connector Figure 4 26 Connectors and terminals location of SCA2 type SCSI model 4 24 C141 E064 03EN 2 SCSI connector and power supply connector a SCA
91. rs Note The average DE surface temperature means the average temperature at the DE surface throughout the year when the IDD is operating T2 C TI C gt gt tl 12 T1xt1 T2xt2 Average DE surface temperature awo Data security at power failure Integrity of the data on the disk is guaranteed against all forms of DC power failure except on blocks where a write operation is being performed The above does not applied to formatting disks or assigning alternate blocks C141 E064 03EN 2 2 SCSI Function Specifications Table 2 3 shows the SCSI functions provided with the IDD Table2 3 SCSI function specifications Item Specification Single ended type HVD type High Voltage Differential LVD type Low Voltage Differential Electrical Single ended type Position where the terminating requirements 1 resistor is mounted on the PCA Differential type Position where the terminating resistor is mounted on the PCA TERMPWR signal send function NN Connector Data bus parity 2 Bus arbitration function Disconnection reconnection function SCSI ID 16 bit SCSI 0 to 15 Addressing Jumper selection LUN logical unit number 0 fixed Data transfer 8 bit SCSI Single Ended type O 20 MB s max LVD type O 40 MB s max 16 bit SCSI Single Ended type O 40 MB s max LVD type O 80 MB s max 160 m LVD type O 160 MB s max 2 MB LC LP or 4 MB MC MP programmable multi seg
92. s intentionally left blank APPENDIX B SETTING TERMINALS B 1 Setting Terminals This appendix describes setting terminals C141 E064 03EN B B 1 Setting Terminals Table B 1 Setting terminal CN2 Setting item 6521 Setting contents 2 SCSIID Open Short Open SCSI ID 46 Common to 8 bit and 16 bit SCSI n Short Short SCSIID 7 Common to 8 bit and 16 bit SCSI eA os B O S Is is 5 O O O O 5 5 m Aad ALTA Opa S Short Short SCSIID 14 16 bit SCSI only Short Short hort SCSIID 15 16 bit SCSI only 2 Write protect Open Setting at factory shipment 1 LC MC 2 LP MP Write operation is enabled Write operation is disabled For LP MP models Setting item Pins Setting contents 11 12 13 14 15 16 23 24 Motor start mode Open Started by the START STOP command Short Started by turning the power supply on Force Narrow Width of 16 bit bus Width of 8 bit bus Force Single Ended Follows DIFFSNS signal level on SCSI bus Single Ended mode Terminating power Open Does not supply terminating resistor power to SCSI supply BUS Supply terminating resistor power to SCSI BUS Setting at factory shipment B 2 C141 E064 03EN For LC MC models Setting item Setting contents Motor start mode Started by turning the power supply on Started by the START STOP command Force Narrow Width of 16 bit bus
93. s which operate as initiator LUN 0 fixed Host System IDD A 6 14 0 LUN 0 LUN n Controller 2 Controller 3 O ROT Controller 4 12 Host System 2 adapter B Controller 5 13 7 15 n SCSI ID for 8 bit SCSI n SCSI ID for 16 bit SCSI 1 1 10 Figure 1 8 System configuration SCSI bus configuration Up to eight SCSI devices operating as an initiator or a target can be connected to the SCSI bus for the 8 bit SCSI and up to 16 SCSI devices operating as an initiator or a target can be connected to the SCSI bus for the 16 bit SCSI in any combination For example the system can be configured as multi host system on which multiple host computers that operate as initiator or connected through the SCSI bus Using disconnect reconnect function concurrent input output processing is possible on multi SCSI devices C141 E064 03EN 2 Addressing of peripheral device Each SCSI device on the bus has its own unique address SCSI ID n in Figure 1 6 For input output operation a peripheral device attached to the SCSI bus that operates as target is addressed in unit called as logical unit A unique address LUN logical unit number is assigned for each logical unit The initiator selects one SCSI device by specifying that SCSI ID then specifies the LUN to select the peripheral device for input output operation The IDD is constructed so that the whole volume
94. sete du nana 3 7 Sector fOEmat ette EIER ERN IURI RII a 3 8 Alternate block allocation by FORMAT UNIT command oooooooo o 3 14 Alternate block allocation by REASSIGN BLOCKS 3 15 External dimensions series LC MC oo enakan 4 2 External dimensions MAF series LP MP Wan 4 3 External dimensions MAE series 4 4 External dimensions MAE series 1 4 5 External dimensions MAG series _ a eee nennen nnne 4 6 External dimensions MAG series LP MP oooo WoWooo XXX 4 7 IDD directions a UR etre ceded ee ca ree ER einer tee an 4 8 Mountirig frame str cture HA on are rere ee P Ond ERR EORR 4 9 Limitation of side mounting o oooooo moWW WWW n nennen TE NE 4 9 Surface temperature measurement points series MAE series MAG series 4 10 Service clearance area etis ete ertet tege tert tei ace t pie anna 4 11 Air pressure adjustment hole unn eene enne rennen nnne nennen 4 12 Current waveform 412 VDO nnne nien r nnn 4 13 Power on off sequence 1 enne emere nenne enne rennen 4 14 Power on off sequence ce tet tote ti e e EN EN EN 4 14 Power on off sequence 3 iiir tier E E M ORE bea 4 14 C1
95. t signal C141 E064 03EN 4 13 d SCSI device supplying power to TRMPWR 5VDC IDD 45VDC Ti20 T220 Figure 4 14 Power on off sequence 1 In a system which does not use the terminating resistor power supply signal TERMPWR on the SCSI bus the requirements for 5 VDC given in Figure 4 15 must be satisfied between the IDD and the SCSI device with the terminating resistor circuit SCSI devices with the terminating resistor 5VDC IDD 5VDC Ti20 T2 gt 0 Figure 4 15 Power on off sequence 2 Between the IDD and other SCSI devices on the SCSI bus the 5 VDC power on off sequence is as follows e system with its all SCSI devices designed to prevent noise from leaking to the SCSI bus when power is turned on or off the power sequence does not matter if the requirement in b or c is satisfied e system containing an SCSI device which is not designed to prevent noise from leaking to the SCSI bus the requirement given in Figure 4 16 must be satisfied between that SCSI device and the IDD SCSI devices without noise leaking designed 4 75V 4 75 5VDC Ti 2 0 5V 0 5V IDD 5VDC T120 T220 Figure 4 16 Power on off seguence 3 C141 E064 03EN 4 5 6 Sequential starting of spindle motors After power is turned on to the IDD a large amount of current flows in the 12 VDC line when the spindle motor rotation starts Therefore if more than one IDD is used the spi
96. tem this section describes the general procedures Checking procedure Issuing the commands and determining the end status depends on the start mode of the spindle motor and UNIT ATTENTION report mode specified with setting terminal Figure 5 4 shows the recommended checking procedure for the mode that the motor starts when power is turned on Figure 5 5 shows for the mode that the motor starts by the START STOP command In these recommended checking procedures following items are checked Note Following steps a to e correspond to a to e in Figures 5 4 and 5 5 a Issue the TEST UNIT READY command and check that the IDD is connected correctly to the SCSI bus and the initial operation after power is turned on ended normally The command issue period of the TEST UNIT READY command shall be more than 20 ms b To control starting of the spindle motor from the host system issue the START STOP UNIT command to start the spindle motor c Check the SCSI bus operations with the WRITE BUFFER and READ BUFFER commands Use data whose data bus bits change to 0 or 1 at least once Example Data with an increment pattern of X 00 to X FF d Start the IDD self diagnostic test with the SEND DIAGNOSTIC command and check the basic operations of the controller and disk drive C141 E064 03EN 5 13 Motor starts when power is turned on For Figure 5 5 No report UNIT ATTENTION report mode SCSI standard TEST UNIT READY comma
97. tention to that the IDD operates according to the saved parameter value if the saving operation is not executed at installation C141 E064 03EN 5 The saved value of the MODE SELECT parameter is assumed as the initial value of each parameter after the power on the RESET condition or the BUS DEVICE RESET message The INIT can change the parameter value temporary actively at any timing by issuing the MODE SELECT or MODE SELECT EXTENDED command with specifying 0 to the SP bit in the CDB 1 Error recovery parameter The following parameters are used to control operations such as IDD internal error recovery a Read write error recovery parameters page code 1 Parameter Default value ARRE Automatic alternate block allocation at read 1 enabled operation TB Uncorrectable data transfer to the INIT 1 enabled EER Immediate correction of correctable error 1 enabled PER Report of recovered error 0 disabled DCR Suppression of ECC error correction 0 Correction is enabled Retry count at read operation 63 Retry count at write operation 0 Recovery time limit 30 sec b Verify error recovery parameters page code 7 Parameter Default value ERR Immediate correction of recoverable error 1 enabled PER Report of recovered error 0 disabled DTE Stop of command processing at successful 0 Processing is error recovery continued DCR Suppression of ECC error correction 0 Correction is enabled
98. ter unpacking and avoid shocks and vibrations with cushions For the carrying direction at delivery use one of the mount allowable directions in Subsection 4 2 2 vertical direction is recommended Storage a Provide vaporproof packaging for storage b The storage environment must satisfy the requirements specified in Subsection 2 1 3 when the drive is not operating c To prevent condensation avoid sudden changes in temperature C141 E035 01 EN 5 2 Connections Figure 5 1 shows examples of connection modes between the host system and the IDD For the 16 bit SCSI up to 16 devices including the host adapter IDD and other SCSI devices can be connected to the SCSI bus in arbitrary combinations Install a terminating resistor on the SCSI device connected to both ends of the SCSI cable See Section 4 4 for the cable connection requirements and power cable connections 1 Connecting one IDD Single Ended type SCSI Hot C Adapter SCSI cable N IDD 2 Connecting more than one IDD single host SCSI cable Hot Adapter Host system Other SCSI device Figure 5 1 SCSI bus connections 1 of 2 C141 E064 03EN 5 3 3 Connecting more than one IDD multi host C Host a SCSI cable N adapter 1 IDD C IDD Host Hot C system adapter N 2 1 Other SCSI device SCSI terminating resistor Figure 5 1 SCSI bus connections 2 of 2 5 4 C141 E064 03EN
99. ternal operator Cable socket FCN 723J016 2M Fujitsu Limited panel CN2 housing FCN 723J G AM Fujitsu Limited AWO LC MC SCSI connector Connector 787311 1 AMP CN1 1 SCSI cable See Section 1 3 Physical Requirements and Section 1 4 Electrical Requirements in SCSI Physical Interface Specifications 2 Power cable IDDs must be star connected to the DC power supply one to one connection to reduce the influence of load variations 3 DC ground The DC ground cable must always be connected to the IDD because no fasten terminal dedicated to SG is provided with the IDD Therefore when SG and FG are connected in the system it is necessary to connect SG and FG at the power supply or to connect SG of the power supply to FG of the system 4 28 C141 E064 03EN 4 External operator panel The external operator panel is installed only when required for the system When connection is not required leave open the following pins in the external operator panel connector of the IDD Pins 21 22 and pins 01 through 08 in CN2 and pins A1 through A12 in CNI 4 3 4 External operator panel A recommended circuit of the external operator panel is shown in Figure 4 30 Since the external operator panel is not provided as an option this panel must be fabricated at the user site referring to the recommendation if necessary DD C IDO 1 IDI ID2 ID3 GND Approx 3000 A8 LED LED V
100. type SCSI The connector for the SCSI bus is an unshielded SCA 2 connector conforming to SCSI 3 type which has two 40 pin rows spaced 1 27 mm 0 05 inch apart Figure 4 27 shows the SCSI connector See Section C 5 in Appendix C for signal assignments on the connector For details on the physical electrical requirements of the interface signals refer to Sections 1 3 and 1 4 in SCSI Physical Interface Specifications 66 5 1 27 40 1 49 53 N TT 1 5 MA SUUDUUUDUDUUUDUUUUDUDUDUUUUUDUUUUDUUDUUUUUQ sean DOOR Teh mmn LI Figure 4 27 SCA2 type SCSI connector C141 E064 03EN 4 25 3 Connector for external operator panel e Connector external operator panel A connector for the external operator panel are provided on the IDD as shown in Figure 4 28 This allows to place externally LED on the front panel or an SCSI ID setting switch CN2 TIL 00mm Pin Signal Pin Signal 01 GND 02 GND 04 05 GND 06 1D2 07 GND 08 09 GND 10 WTP Pin2 Pin16 GND 12 RMSTART 13 GND 14 8 16 SW 15 GND 16 DIFFSENS Figure 4 28 External operator panel connector CN2 4 26 C141 E064 03EN External operator panel connector Signals a 16 bit SCSI ID3 ID2 ID1 ID0 Input signals CN 2 02 04 06 08 pin These signals are used for providing switches to set the SCSI ID of the IDD externally Figure 4 29 shows
101. ve using its powerful retry processing If a recoverable data check occurs error free data can be transferred to the initiator after being corrected in the data buffer The initiator software is released from the complicated error recover processing by these error recovery functions of the IDD Automatic alternate block reassignment If a defective data block is detected during read the IDD can automatically reassign its alternate data block Programmable data block length Data can be accessed in fixed block length units The data block length is programmable and can at initializing with a multiple of two for LC LP and four for MC MP within the range of 512 to 528 bytes Defective block slipping A logical data block can be reallocated in a physical sequence by slipping the defective data block at formatting This results in high speed contiguous data block processing without a revolution delay due to defective data block High speed positioning A rotary voice coil motor achieves fast positioning Large capacity A large capacity can be obtained from 3 5 inch disk drives by dividing all cylinders into several partitions and changing the recording density on each partition constant density recording The disk subsystem with large capacity can be constructed in the good space efficiency Start Stop of spindle motor Using the SCSI command the host system can start and stop the spindle motor Diagnosis The IDD has a diagnostic capab

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