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C141-E103-01EN

8 - 1

CHAPTER 8

PRINCIPLE OF OPERATION

8.1

Outline

8.2

Disk Drive Configuration

8.3

Circuit Configuration

8.4

Power-On Sequence

8.5

Factory-Calibration

8.6

Read/Write Circuit

8.7

Servo Control

This chapter explains the general design concepts of the disk drive. It also explains the main parts,
sequences, servo control method, and the main electrical circuits of the drive at the block level.

8.1

Outline

The principle of operation of this disk drive can be divided into two parts. The first part explains
the mechanical parts of the drive (see Section 8.2). The second part explains the servo data
recorded on a magnetic disk and explains drive control (see Sections 8.3 to 8.7).

8.2

Disk Drive Configuration

The main disk drive subassemblies are a disk enclosure (DE) and printed-circuit boards (also
called printed circuit assemblies (PCA)).

The DE contains all the moving parts of the disk drive. That is, DE contains disks, heads, spindle
mechanism, and actuator, and also air filters.

These parts are explained in Subsections 8.2.1 to 8.2.5.

Each PCA contains the electric circuit of the disk drive. See Section 8.3 for explanations of these
electric circuits.

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Содержание MAH3091MC - Enterprise 9.1 GB Hard Drive

Страница 1: ...C141 E103 01EN MAH3182MC MP SERIES MAH3091MC MP SERIES MAJ3364MC MP SERIES MAJ3182MC MP SERIES MAJ3091MC MP SERIES DISK DRIVES PRODUCT MAINTENANCE MANUAL ...

Страница 2: ...REVISION RECORD Edition Date published Revised contents 01 Feb 2000 Specification No C141 E103 EN The contents of this manual is subject to change without prior notice All Rights Reserved Copyright 2000 FUJITSU LIMITED ...

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Страница 4: ...duct 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 damage to their property Use the product according to this manual Proceed to the Copyright Page ...

Страница 5: ...erface SCSI American National Standards Institute ANSI X3T9 2 855D Rev 12 WORKING DRAFT Information Technology SCSI 3 Parallel Interface American National Standards Institute ANSI T10 1236 D Rev 12 WORKING DRAFT Information technology SCSI Primary Commands 2 SPC 2 American National Standards Institute ANSI ANSI NCITS 306 199x American National Standard for Information Technology SCSI 3 Block Comma...

Страница 6: ... 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 MAH series and MAJ series disk drives Chapter 5 INSTALLATION This chapter explains how to install MAH series and MAJ ...

Страница 7: ...rts to prevent physical or property damages to users or by standards DANGER DANGER indicates that personal injury will occur if the user does not perform the procedure correctly WARNING WARNING indicates that personal injury could occur if the user does not perform the procedure correctly CAUTION CAUTION indicates that either minor or moderate personal injury may occur if the user does not perform...

Страница 8: ... 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 AJ 3 364 MC Interface types MC LVD 16 bit SCSI SCA2 connector 160MHz ...

Страница 9: ...allowable number correction may not be performed properly 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 devi...

Страница 10: ... strap connected to ground before handling ESD Electrostatics Discharge may cause the damage to the device 2 To prevent electrical damage to the disk drive turn the power off before mounting or removing a PCA or connecting or disconnecting a cable connector or plug 3 Do not turn the power on while removing a PCA This operation is required to prevent unexpected or unpredictable operation 4 Do not u...

Страница 11: ...Installation 6 Diagnostics and Maintenance 7 Error Analysis 8 Principle of Operation SCSI Physical Interface Specifications 1 SCSI Bus 2 SCSI Message 3 SCSI Bus Error Recovery Processing SCSI Logical Interface Specifications 1 Command Processing 2 Data Buffer Management 3 Command Specification 4 Sense Data and error Recovery Procedure 5 Disk Medium Management ...

Страница 12: ... 2 2 SCSI Function Specifications 2 7 CHAPTER 3 DATA FORMAT 3 1 3 1 Data Space 3 1 3 1 1 Cylinder configuration 3 1 3 1 2 Alternate spare area 3 5 3 1 3 Track format 3 6 3 1 4 Sector format 3 8 3 1 5 Format capacity 3 10 3 2 Logical Data Block Addressing 3 11 3 3 Defect Management 3 12 3 3 1 Defect list 3 12 3 3 2 Alternate block allocation 3 12 CHAPTER 4 INSTALLATION REQUIREMENTS 4 1 4 1 Mounting...

Страница 13: ...10 5 5 Connecting Cables 5 11 5 6 Confirming Operations after Installation and Preparation for use 5 12 5 6 1 Confirming initial operations 5 12 5 6 2 Checking SCSI connection 5 13 5 6 3 Formatting 5 16 5 6 4 Setting parameters 5 18 5 7 Dismounting Drives 5 22 5 8 Spare Disk Drive 5 22 CHAPTER 6 DIAGNOSTICS AND MAINTENANCE 6 1 6 1 Diagnostics 6 1 6 1 1 Self diagnostics 6 1 6 1 2 Test programs 6 4 ...

Страница 14: ...7 2 Sense Data Analysis 7 3 7 2 1 Error information indicated with sense data 7 3 7 2 2 Sense data 4 03 xx 4 40 xx 4 44 xx and 4 C4 xx 7 4 7 2 3 Sense data 1 1x xx 3 1x xx and E 1D 00 Disk read error 7 4 7 2 4 Sense data 5 2x xx 5 3D 00 5 90 00 B 47 xx B 49 00 B 4D xx and B 4E 00 SCSI interface error 7 4 CHAPTER 8 PRINCIPLE OF OPERATION 8 1 8 1 Outline 8 1 8 2 Disk Drive Configuration 8 1 8 2 1 Di...

Страница 15: ...tting Terminals MAH series MP model A 3 A 3 Locations of Connectors and Setting Terminals MAJ series MC model A 4 A 4 Locations of Connectors and Setting Terminals MAJ series MP model A 5 APPENDIX B SETTING TERMINALS B 1 B 1 Setting Terminals B 2 APPENDIX C CONNECTOR SIGNAL ALLOCATION C 1 C 1 SCSI Connector Signal Allocation SCA2 type LVD 16 bit SCSI C 2 C 2 SCSI Connector Signal Allocation 68 pin...

Страница 16: ... series MC model 4 2 4 2 External dimensions MAH series MP model 4 3 4 3 External dimensions MAJ series MC model 4 4 4 4 External dimensions MAJ series MP model 4 5 4 5 IDD directions 4 6 4 6 Mounting frame structure 4 7 4 7 Limitation of side mounting 4 7 4 8 Surface temperature measurement points 4 8 4 9 Service clearance area 4 9 4 10 Air pressure adjustment hole 4 10 4 11 Current waveform 12 V...

Страница 17: ...cking the SCSI connection A 5 14 5 5 Checking the SCSI connection B 5 15 6 1 Revision label 6 9 6 2 Indicating revision numbers 6 10 6 3 Test flowchart 6 11 7 1 Format of extended sense data 7 2 8 1 Circuit configuration 8 4 8 2 IDD operation sequence at power on 8 5 8 3 Block diagram of read write circuit 8 7 8 4 Block diagram of servo control circuit MAJ3364 8 10 8 5 Position of servo track 8 12...

Страница 18: ...Setting of the SCSI interface operation mode CN2 5 9 5 6 Setting the bus width of the SCSI interface CN2 5 9 5 7 Default mode settings by CHANGE DEFINITION command 5 9 5 8 Setting check list 5 10 6 1 Self diagnostic functions 6 1 6 2 System level field troubleshooting 6 14 6 3 Disk drive troubleshooting 6 15 7 1 Definition of sense data 7 3 8 1 MAJ3364 series MAJ3182 series date frequency and reco...

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Страница 20: ...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 SCSI ANSI X3 131 1994 Small Computer System Interface 2 SCSI 2 The flexibility and expandability of the SCSI as well as the powerful command set of the IDD allow the user to construct a high perfo...

Страница 21: ...nipulate data through logical block addressing regardless of the physical characteristics of the disk drive This allows software to accommodate future expansion of system functions 3 8 bit SCSI 16 bit SCSI The IDD has 16 bit data bus width 16 bit SCSI which have the wide transfer function suitable for SCSI 2 This is also available as 8 bit data bus For the ultra SCSI model number of connectable SC...

Страница 22: ...ironment 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 7 Read ahead cache...

Страница 23: ...le of four within the range of 512 to 528 bytes 13 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 14 High speed positioning A rotary voice coil motor achieves fast positioning 15 Large capacity...

Страница 24: ... has rubber vibration isolators which minimize the transfer of vibration 20 Microcode downloading The IDD implements the microcode download feature This feature achieves easy maintainability of the IDD and function enhancing 1 2 Hardware Structure An outer view of the IDD is given in Figures 1 1 to 1 4 The IDD is composed of the disk head spindle motor hermetically sealed disk enclosure DE with ac...

Страница 25: ...C141 E103 01EN 1 6 Figure 1 2 MAH series MP outer view Figure 1 3 MAJ series MC outer view Figure 1 4 MAJ series MP outer view ...

Страница 26: ...rotating and automatically float when the rotation is started Figure 1 5 shows the configuration of disks and heads Figure 1 5 Disk head configuration 3 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 4 Actuator The actua...

Страница 27: ...E 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 6 Read write circuit The read write circuit utilizes a read channel mounted with a head IC that supports high speed transmission an...

Страница 28: ...tion 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 th...

Страница 29: ... 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 of disk drive is a single logical unit the selectable number of SCSI ID and LUN are as follows SCSI ID 8 bit SCSI Selectable from 0 to 7 s...

Страница 30: ...cifications of the IDD and the functional specifications of the SCSI 2 1 Hardware Specifications 2 1 1 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 ...

Страница 31: ... Write 6 7 ms Read 7 3 ms Write 14 0 ms Read 15 0 ms Write Start time Stop time 30 s typ 60 s max 30 s typ Recording mode 32 34 MEEPRML Recording density max 15 35kb mm 390 kbpi 14 96kb mm 380 kbpi Track density AVE 748 Track mm 19 000 TPI External dimensions Height Width Depth 25 4 mm 101 6 mm 146 0 mm Weight 0 75 kg 0 6 kg Power consumption 5 12 5 W 10 5 W 9 5 W 6 5 W 6 0 W Interface Fast SCSI S...

Страница 32: ...rmat of the IDD 3 The positioning time is as follows 4 The start time is the time from power on or start command to when the IDD is ready and the 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 ...

Страница 33: ...200G 2 ms Operating 60 m to 3 000 m Non operating 60 m to 12 000 m 12 VDC 5 Ready Average 0 65 A 0 5 A 0 45 A 0 25 A 0 2 A Peak within 100 µs at spin up 3 0 A Random W R about 80 IOPS 1 3 A 0 8 A 0 7 A 1 0 A 5 VDC 5 6 Ready 0 75A 0 65 A Random W R about 80 IOPS 0 6 A Ripple 7 5 V 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...

Страница 34: ...r keeps allowable error byte number correction is performed However if error byte exceeds its allowable number correction may not be performed properly 2 Positioning error rate Positioning errors which can be recovered by one retry should be 10 or less per 108 seeks 2 1 5 Reliability 1 Mean Time Between Failures MTBF MTBF of the IDD during its life time is 1 000 000 hours operating 24 hours day 7 ...

Страница 35: ...e temperature 45 C or less 4 5 years DE surface temperature 46 C to 50 C 4 years DE surface temperature 51 C to 55 C 3 5 years 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 Note The average DE surface temperature means the average temperature at the DE surface t...

Страница 36: ...able connector Ο Connector 80 pin SCA2 connector Ο Data bus parity Data bus CRC Ο Bus arbitration function Ο Disconnection reconnection function Ο SCSI ID 16 bit SCSI 0 to 15 Jumper selection LUN logical unit number 0 fixed Data transfer Synchronous mode 8 bit SCSI Single Ended type LVD type 16 bit SCSI Single Ended type LVD type 160 m LVD type Ο 20 MB s max Ο 40 MB s max Ο 40 MB s max Ο 80 MB s m...

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Страница 38: ...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 3 1 1 Cylinder configuration The IDD allocates cylinders to the user space Internal tes...

Страница 39: ...1 series 13 261 n 1 n 2 Cylinder 0 Cylinder 59 to Cylinder 4 User space System space Internal test space Cylinder 70 to Cylinder 63 Primary Cylinder 0 to Primary Cylinder n 1 Spare sector for each cylinder SA1 SA56 Internal test cylinder n Figure 3 1 Cylinder configuration Apart from the above logical configuration the IDD intends to increase the storage capacity by dividing all cylinders into sev...

Страница 40: ... 448 434 420 399 385 369 1 The value given in parenthesis is for MAJ3182 series Note When the logical data block length is 512 bytes the sector track capacity indicates above amount Table 3 2 Zone layout and track capacity MAJ3091 series Zone 0 1 2 3 4 5 6 Cylinder 0 to 579 580 to 1 339 1 340 to 2 249 2 250 to 3 219 3 220 to 4 554 4 555 to 5 489 5 490 to 6 654 Byte track 373 107 364 069 353 177 34...

Страница 41: ...of cylinders in the user space is MAH3182 series 17545 MAH3091 series 17 686 MAJ3364 series 14 792 MAJ3182 series 14 808 and MAJ3091 series 13 261 These also equal the maximum cylinders number for each series 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 speci...

Страница 42: ...k 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...

Страница 43: ...tors 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 ...

Страница 44: ...ion 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 Figure 3 5 Track skew cylinder skew The number of physical sectors track skew factor and cylinder skew factor correspond...

Страница 45: ...tes G2 DATA1 SM2 BCRC DATA2 ECC SCT PAD SM1 PLO Sync G1 SCT G3 DATA1 SM2 DATA3 PAD G2 SM1 PLO Sync G1 DATA1 SM2 DATA4 Servo BCRC ECC Figure 3 6 Sector format Each sector on the track consists of the following fields 1 Gaps G1 G2 G3 The gap length at the time of formatting initializing is listed in Figure 3 6 No pattern is written on the gap field 2 PLO Sync In this field pattern X 00 in the length...

Страница 46: ...5 BCRC It is a 4 byte error detection code Errors in the ID field Single burst errors with lengths of up to 32 bits for each logical block can be detected 6 ECC This is the 40 byte code that allows detection and correction of errors in the data field which is capable of correcting the single burst error up to 160 bits max on the fly 7 PAD A specified length of x 00 pattern shown in Figure 3 6 is w...

Страница 47: ...ors in logical block 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 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 b...

Страница 48: ...e 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 lo...

Страница 49: ...d 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 3 3 2 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...

Страница 50: ...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 1 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 s...

Страница 51: ...er 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 Unused spare ...

Страница 52: ...e 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 alternate 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 Figure 3 8 Alternate block allocation by REAS...

Страница 53: ...rame After completing reassignment WRITE WRITE EXTENDED command processing is successively executed for the following sectors 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 t...

Страница 54: ... 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 4 show the external dimensions of the IDD and the positions of the holes for the IDD mounting screws Note Dimensions are in mm ...

Страница 55: ...C141 E103 01EN 4 2 3 175 0 25 Figure 4 1 External dimensions MAH series MC model ...

Страница 56: ... 1 LJXUH WHUQDO GLPHQVLRQV 0 VHULHV 03 PRGHO ...

Страница 57: ...C141 E103 01EN 4 4 3 175 0 25 Figure 4 3 External dimensions MAJ series MC model ...

Страница 58: ... 1 LJXUH WHUQDO GLPHQVLRQV 0 VHULHV 03 PRGHO ...

Страница 59: ...sed 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 in Figure 4 6 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 0 59N m 6kgf cm d Impact caused by the electric driver must be within the device specifications e Must be handl...

Страница 60: ...not use the center hole by itself In case of using the center hole it must be used in combination with 2 holes on both ends Total 6 screws for 6 holes enclosed Figure 4 7 Limitation of side mounting 3 Limitation of bottom mounting Use all 4 mounting holes on the bottom face 4 3 2 1 Use four holes No 1 4 to mount Holes for mounting screw Holes for mounting screw Do not use these holes ...

Страница 61: ...5 C 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 Criteria 1 Center of DE cover 55 C 2 Read channel LSI 83 C 3 VCM SPM Driver 75 C 4 HDC 85 C Figure 4 8 Surface ...

Страница 62: ...rmance 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 10 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 du...

Страница 63: ...C141 E103 01EN 4 10 MAJ series Figure 4 10 Air pressure adjustment hole Air pressure adjustment hole ...

Страница 64: ...e Figure 4 11 shows the waveform of 12 VDC MAJ3364 series MAJ3182 series MAJ3091 series MAH3182 series MAH3091 series Figure 4 11 Current waveform 12 VDC 3 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 VDC give...

Страница 65: ...the SCSI bus the 5 VDC power on off sequence is as follows In a 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 In a system containing an SCSI device which is not designed to prevent noise from leaking to the SCSI bus the requirement given in Figure 4 ...

Страница 66: ... sequentially 5 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...

Страница 67: ... SCSI MP model Power supply connector SCSI connector External operator panel connector Figure 4 16 Connectors and terminals location MP model SCSI connector CN1 External operator panel connector CN2 External operator panel connector CN1 Power supply connector CN1 External operator panel connector CN2 Power supply connector CN1 External operator panel connector CN1 SCSI connector CN1 MAH series MAJ...

Страница 68: ... 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 Figure 4 17 16 bit SCSI interface connector b Power supply connector Figure 4 18 shows the shape and the terminal arrangement of the output connector of DC power supply Figure 4 18 Power supply con...

Страница 69: ...anel CN1 provides connector for the external operator panel other than the SCSI bus as shown in Figure 4 19 Also a connector for the external operator panel are provided on the IDD as shown in Figure 4 20 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 Figure 4 19 External ope...

Страница 70: ...C141 E103 01EN 4 17 Figure 4 20 External operator panel connector CN2 ...

Страница 71: ...D0 Input signals CN1 A1 A3 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 21 shows the electrical requirements For the recommended circuit examples see Subsection 4 3 4 Figure 4 21 16 bit SCSI ID external input ...

Страница 72: ...et 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 22 IMPORTANT 1 The external LED is identical in indication to the LED o...

Страница 73: ...01EN 4 20 Figure 4 22 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 ...

Страница 74: ...ments The requirements for cable connection between the IDD host system and power supply unit are given in Figure 4 23 Recommended components for connection are listed in Table 4 2 Figure 4 23 SCSI cables connection External operator panel example ...

Страница 75: ...the locations of connectors and terminals on the SCA2 type SCSI model SCSI connector including power supply connector Figure 4 24 Connectors and terminals location of MC model SCSI connector CN1 External operator panel connector CN2 External operator panel connector CN2 SCSI connector CN1 ...

Страница 76: ...CSI 3 type which has two 40 pin rows spaced 1 27 mm 0 05 inch apart Figure 4 25 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 Figure 4 25 SCA2 type SCSI connector ...

Страница 77: ... Connector external operator panel A connector for the external operator panel are provided on the IDD as shown in Figure 4 26 This allows to place externally LED on the front panel or an SCSI ID setting switch Figure 4 26 External operator panel connector CN2 ...

Страница 78: ...6 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 27 shows the electrical requirements Figure 4 27 16 bit SCSI ID external input CN2 02 CN2 04 CN2 06 IDD CN2 08 ...

Страница 79: ... AM Fujitsu Limited External operator panel CN1 Cable AWG26 to 34 S3 Cable socket housing FCN 723J016 2M Fujitsu Limited Contact FCN 723J G AM Fujitsu Limited MP External operator panel CN2 Cable AWG28 S4 MC SCSI connector CN1 Connector 787311 1 AMP 1 SCSI cable See Section 1 3 Physical Requirements and Section 1 4 Electrical Requirements in SCSI Physical Interface Specifications 2 Power cable IDD...

Страница 80: ...1 through 08 in CN2 and pins A1 through A12 in CN1 4 3 4 External operator panel A recommended circuit of the external operator panel is shown in Figure 4 28 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 MP Figure 4 28 External operator panel circuit example IMPORTANT Do not connect the ext...

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Страница 82: ...ictly 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 Use an antistatic ma...

Страница 83: ...a 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 5 De...

Страница 84: ...st 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 2 Connecting more than one IDD single host Figure 5 1 SCSI bus connections 1 of 2 ...

Страница 85: ...C141 E103 01EN 5 4 3 Connecting more than one IDD multi host Figure 5 1 SCSI bus connections 2 of 2 ...

Страница 86: ...gs 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 MAH Series MAJ S...

Страница 87: ...ite protect enabled SCSI ID 15 MP model 0 MC model 16 14 12 10 8 6 4 2 15 13 11 9 7 5 3 1 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 3 for connector positioning and allocation IMPORTANT When the SCSI ID is set using the external operator panel connector CN1 all pins listed in Table 5 1 should be open If any of pins are shor...

Страница 88: ... IMPORTANT 1 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 6 5 4 3 2 1 0 15 14 13 12 11 10 9 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 ...

Страница 89: ...rocode is downloaded Short 1 Open 1 1 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 protect CN2 9 10 Write operation is enabled Open 1 Write operation is disable Short 1 S...

Страница 90: ...idth of the SCSI interface CN2 Bus width CN2 13 14 16 bit bus Open 8 bit bus Short 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 ...

Страница 91: ... be checked are shown below See Subsection 4 1 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 ...

Страница 92: ...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 CAUTION Damage 1 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...

Страница 93: ...ration in the case of setting so that motor starts with START STOP command a When power is turned on the LED blinks an instant and the IDD executes initial self diagnosis b If an error is detected in the initial self diagnosis the LED blinks c The spindle motor does not start rotating until the START STOP UNIT command for the start is issued The INIT needs to issue the START STOP UNIT command to s...

Страница 94: ... 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 comm...

Страница 95: ...C141 E103 01EN 5 14 Motor starts when power is turned on Figure 5 4 Checking the SCSI connection A 60 ...

Страница 96: ...C141 E103 01EN 5 15 Motor starts by START STOP command Figure 5 5 Checking the SCSI connection B Executing time about 60 seconds ...

Страница 97: ...er 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 Logical data block length Number of logical data blocks or number of cylinders in the user space Alternate spare area size This section outlines the formatting at installa...

Страница 98: ... 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...

Страница 99: ...s 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...

Страница 100: ...peration Automatic alternate block allocation at read operation Uncorrectable data transfer to the INIT Immediate correction of correctable error Report of recovered error Suppression of ECC error correction 0 disabled 1 enabled 1 enabled 1 enabled 0 disabled 0 Correction is enabled Retry count at read operation Retry count at write operation Recovery time limit 63 63 30 sec b Verify error recover...

Страница 101: ... 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 Time required for reconnection p...

Страница 102: ...or which prefetch is suppressed X FFFF Minimum prefetch X 0000 Maximum prefetch X XXXX 1 cache segment Number of blocks with maximum prefetch restrictions X FFFF Number of segments X 10 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 acc...

Страница 103: ... 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 s...

Страница 104: ...ics The IDD has the following self diagnostic function This function checks the basic operations of the IDD Initial self diagnostics 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 ...

Страница 105: ...the disk drive 1 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 ...

Страница 106: ...IT 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 test for th...

Страница 107: ...nformation 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 CAUTION Data loss When the SE...

Страница 108: ...ommand 4 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 6 2 Maintenance Information 6 2 1 Precautions Take the following precautions to prevent injury during maintenance and troubleshooting CAUTION 1 To avoid shocks turn off the power before mounting or removing a PCA and b...

Страница 109: ...ion is required to prevent unexpected or unpredictable operation 4 Do not use a conductive cleaner to clean a disk drive assembly 5 Open all ventilation holes to prevent overheating of electric circuits 6 Ribbon cables are marked with a colored line Connect the ribbon cable to a cable connector with the colored wire connected to pin 1 6 2 2 Maintenance requirements 1 Preventive maintenance Prevent...

Страница 110: ...owing information must be included a IDD model part number P N revision number serial number S N and date of manufacturing b Error status Date when the error occurred System configuration Environmental conditions temperature humidity and voltage c Error history d Error contents Outline of inconvenience Issued commands and specified parameters Sense data Other error analysis information CAUTION Dat...

Страница 111: ...e levels 1 Field maintenance disk drive replacement This replacement is done at the user s site Replacement uses standard tools Replacement is usually done by the user retail dealer distributor or OEM engineer 2 Factory maintenance parts replacement This replacement can only be done by Fujitsu Replacement includes maintenance training and OEM engineer support OEM engineers usually support retail d...

Страница 112: ...ctory 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...

Страница 113: ...At shipment Figure 6 2 Indicating revision numbers 6 2 5 Tools and test equipment Disk drive troubleshooting and repair in the field require only standard hand tools No special tools or test equipment are required This manual does not describe the factory level tools and test equipment 6 2 6 Tests This disk drive can be tested in the following ways Initial seek operation check See Subsection 6 3 1...

Страница 114: ...K Continue operation Check host system Table 6 2 Host system normal Analyze system related error Replaced or repair disk drive Disk drive normal Execute diagnostic test using a host computer or test equipment Test results OK Test using voltage or temperature stress Test results OK Normal Analyze disk drive error Table 6 3 Yes Yes No No Yes No Yes No Figure 6 3 Test flowchart ...

Страница 115: ...r detection circuit of the disk drive an interrupt occurs The interrupt is posted to the MCU on the PCA The MCU stops the currently processed command and causes the CHECK CONDITION status to post the error to the INIT When receiving the CHECK CONDITION status the INIT issues a REQUEST SENSE command to collect detailed information about the error The INIT then issues a REZERO UNIT command to return...

Страница 116: ...or cause is clear e g abnormal noise in disk enclosure or burning of a PCA troubleshooting is straightforward 6 4 2 Troubleshooting with disk drive replacement in the field At this level of maintenance we recommend replacing the disk drive as a unit If replacing the disk drive rectifies the fault return the removed disk drive to the factory for test and repair If the newly installed disk drive doe...

Страница 117: ...rminating resistor is correctly mounted on all disk drives Drive selection address Check that the disk drive selection address is set correctly Plug setup Check that the jumpers on the PCA are set so that the disk drive and host computer operate normally See Section 5 3 System cables Check that all system cables are connected correctly System diagnostic test When possible execute the system level ...

Страница 118: ... Table 6 3 Disk drive troubleshooting Item Recommended action Frequent or repeated seek errors Collect sense data and see Chapter 7 Replace the disk drive and check that the test method is correct If the error recurs it is likely that the disk drive is normal but the test method is incorrect Intermittent or nonfatal errors Replace the disk drive and check that the test method is correct If the err...

Страница 119: ...n the factory This manual does not cover troubleshooting at the factory level 6 4 5 Finding possibly faulty parts Finding possibly faulty parts in the field was explained in Subsection 6 4 2 This manual does not cover finding possibly faulty parts at the factory level ...

Страница 120: ...ion Collection 7 1 1 Sense data When IDD posts a CHECK CONDITION status or detects a fatal error in the SCSI bus the current command or queued command is cleared In such a case the IDD generates sense data about the command issuing INIT The INIT can read the sense data by issuing a REQUEST SENSE command Even if a transfer byte length that is shorter than the sense data length of the tested device ...

Страница 121: ...itional sense data length 8 9 10 11 12 Sense code 13 Subsense code 14 X 00 15 SKSV 16 Sense key specific information 17 18 X 0 0 0 SCSI ID 19 CDB operation code 20 47 Figure 7 1 Format of extended sense data MSB Detail information LSB LSB Command specific information Information Additional information Basic information MSB ...

Страница 122: ...tc An error occurred in power on self diagnosis A hardware error occurred inside IDD A drive error occurred 1 3 1x 1x xx xx A disk read error occurred A disk read error occurred E 1D 00 Data discrepancy found by VERIFY command byte check 5 B B B B 2x 3D 90 47 49 4D 4E xx 00 00 xx 00 xx 00 An SCSI error such as an invalid operation code occurred The Reserve bit of the IDENTIFY message was set to 1 ...

Страница 123: ...that was not recorded in the media defect list In this case assign an alternate block to the error detected block using a REASSIGN BLOCKS command For an explanation of the REASSIGN BLOCKS command refer to the SCSI Logical Interface Specifications If this error occurs in different blocks a PCA or DE is faulty For details of the above sense data refer to the SCSI Logical Interface Specifications 7 2...

Страница 124: ...into two parts The first part explains the mechanical parts of the drive see Section 8 2 The second part explains the servo data recorded on a magnetic disk and explains drive control see Sections 8 3 to 8 7 8 2 Disk Drive Configuration The main disk drive subassemblies are a disk enclosure DE and printed circuit boards also called printed circuit assemblies PCA The DE contains all the moving part...

Страница 125: ...3 Spindle mechanism The spindle mechanism consists of a disk stack assembly and a spindle motor The disk stack assembly is directly driven by the direct drive type DC spindle motor The rotational frequency of this spindle motor is 7 200 min 1 7 200rpm or 10 025 min 1 10 025rpm A counter electromotive force is generated by the drive current in the spindle motor coil A fixed rotational frequency of ...

Страница 126: ...nformation recorded on the data surface Analog servo data is converted into a digital signal and is then processed by a DSP The digital signal is then converted into an analog signal which then controls the voice coil motor The DSP accurately controls traffic positioning of each head using servo information on the data surface 3 Spindle motor drive circuit The spindle motor drive circuit drives th...

Страница 127: ...8 4 C141 E103 01EN Servo Demodulator Buffer DRAM 1 Mbit 32 4 MByte Read Channel Figure 8 1 Circuit configuration ...

Страница 128: ... terminates this sequence and enters the command waiting state 5 The IDD checks that the spindle motor rotation reaches a steady rotational speed 6 The IDD executes self configuration This includes execution of the factory calibration which is described on the next page and the processing of reading the format information and defect position information written in the system zone 7 The disk drive ...

Страница 129: ...agnet used in the VCM To compensate the servo gain is measured at representative positions from the outermost to innermost for each device Measurement is similar to the external force adjustment Measured values are stored as a table in flash memory To adjust servo gain the DSP refers to this table and creates a control table for constant loop gain The DSP stores this table in flash memory 3 Head p...

Страница 130: ...YHUWHG LQWR WKH 15 GDWD 7 E 6 6 FRQWUROOHU DQG LV VHQW WRJHWKHU ZLWK WKH ULWH FORFN VLJQDO WR WKH ZULWH FLUFXLW 7KH 15 GDWD LV FRQYHUWHG LQWR 5 FRGH E WKH HQFRGHU FLUFXLW DQG LV ZULWWHQ WR WKH GLVN LJXUH ORFN GLDJUDP RI UHDG ZULWH FLUFXLW ...

Страница 131: ...uit and Viterbi detection circuit 3 32 34 RLL decoding circuit The 32 34 RLL decoding circuit decodes the viterbi detection circuit output signal This decoding circuit reverse converts scrambles the pseudorandom pattern created at write into NRZ data The NRZ data is then fed to the upper level circuit Table 8 1 MAJ3364 series MAJ3182 series data frequency and recording density in each zone Zone 0 ...

Страница 132: ...RPS Mega Flux Reversals Per Second Table 8 3 MAH series data frequency and recording density in each zone Zone 0 1 2 3 4 5 6 7 Cylinder 0 to 859 860 to 1 959 1 960 to 2 639 2 640 to 3 969 3 970 to 5 149 5 150 to 6 429 6 430 to 7 759 7 760 to 8 689 1F MFRPS 53 4 51 6 50 7 49 2 47 9 46 4 44 5 43 5 2F MFRPS 213 6 206 3 202 8 196 9 191 6 185 5 177 9 174 0 bpi 306 137 305 610 306 818 310 765 314 657 31...

Страница 133: ...ndle servo system Servo demodulator bus16 bus16 Control signal bus16 Data head Servo system block diagram DSP Core Drive I F LSI HDC bus8 SPM VCM combo FET ARRY VCM Spindle motor Control signal PWM Data surface signal Processor Figure 8 4 Block diagram of servo control circuit MAJ3364 1 Processor ASIC Processor application specific IC A DSP controls the spindle motor and the voice coil motor The S...

Страница 134: ...isk At spindle start and stop the head is in contact with this area of the disk 2 Inner guard band IGB IGB is located in an inner position of a disk IGB is used to detect that actuator operation has exceeded the ordinary seek operation range 3 Data zone The servo zone is the data recording part on the data side Ordinary head seek operations are done within this zone 4 Outer guard band OGB OGB is l...

Страница 135: ...ation of the servo mark or delaying a reference counter 4 Gray code area The gray code is an encoded area which includes the head number servo sector number and cylinder information as gray code Head position is recognized based on the cylinder information embedded as a gray code pattern 5 Position area Information for recognizing head position is recorded in the position area Head position in cyl...

Страница 136: ...s called synchronization control 3 When the motor reaches a high rotational frequency a counter electromotive voltage back EMF is generated This voltage tells the DSP the rotational frequency and angular position of the motor Using the rotation position detection data the spindle controller supplies current to the correct phase to rotate the motor The MPU then detects the rotational frequency and ...

Страница 137: ...ter and power amplifier to move the head to the target cylinder A predetermined target speed is used depending on the distance to move The head is accelerated or decelerated to move to the target cylinder Track following operation then begins 3 Track following operation To read or write data from or to a disk the head must be correctly centered over the target cylinder The DSP receives a position ...

Страница 138: ...C141 E103 01EN 8 15 This page is intentionally left blank ...

Страница 139: ...ing Terminals MAH series MC model A 2 Locations of Connectors and Setting Terminals MAH series MP model A 3 Locations of Connectors and Setting Terminals MAJ series MC model A 4 Locations of Connectors and Setting Terminals MAJ series MP model This appendix shows the locations of connectors and setting terminals ...

Страница 140: ... C141 E103 01EN A 1 Locations of Connectors and Setting Terminals MAH series MC model Figure A 1 Locations of connectors and setting terminals MAH series MC model CN1 15 16 CN2 1 2 viewed from bottom side ...

Страница 141: ...1 E103 01EN A 3 A 2 Locations of Connectors and Setting Terminals MAH series MP model Figure A 2 Locations of connectors and setting terminals MAH series MP model CN1 23 24 CN2 1 2 viewed from bottom side ...

Страница 142: ... C141 E103 01EN A 3 Locations of Connectors and Setting Terminals MAJ series MC model Figure A 3 Locations of connectors and setting terminals MAJ series MC model CN1 15 16 CN2 1 2 viewed from bottom side ...

Страница 143: ...1 E103 01EN A 5 A 4 Locations of Connectors and Setting Terminals MAJ series MP model Figure A 4 Locations of connectors and setting terminals MAJ series MP model CN1 23 24 CN2 1 2 viewed from bottom side ...

Страница 144: ...This page is intentionally left blank ...

Страница 145: ...C141 E103 01EN B 1 APPENDIX B SETTING TERMINALS B 1 Setting Terminals This appendix describes setting terminals ...

Страница 146: ... bit SCSI only Short Open Short Open SCSI ID 10 16 bit SCSI only Short Open Short Short SCSI ID 11 16 bit SCSI only Short Short Open Open SCSI ID 12 16 bit SCSI only Short Short Open Short SCSI ID 13 16 bit SCSI only Short Short Short Open SCSI ID 14 16 bit SCSI only Short Short Short Short SCSI ID 15 16 bit SCSI only 2 Write protect Open Write operation is enabled Short Write operation is disable...

Страница 147: ...ng the power supply on Short Started by the START STOP command Force Narrow Open Width of 16 bit bus Short Width of 8 bit bus Force Single Ended Open Follows DIFFSNS signal level on SCSI bus Short Single Ended mode Setting at factory shipment Note See the description of Section 5 3 for details of the setting requirements and notes ...

Страница 148: ...This page is intentionally left blank ...

Страница 149: ...PPENDIX C CONNECTOR SIGNAL ALLOCATION C 1 SCSI Connector Signal Allocation SCA2 type LVD 16 bit SCSI C 2 SCSI Connector Signal Allocation 68 pin type LVD 16 bit SCSI This appendix describes the connector signal allocation ...

Страница 150: ...0 48 09 DB09 DB09 49 10 DB08 DB08 50 11 I O I O 51 12 REQ REQ 52 13 C D C D 53 14 SEL SEL 54 15 MSG MSG 55 16 RST RST 56 17 ACK ACK 57 18 BSY BSY 58 19 ATN ATN 59 20 P_CRCA P_CRCA 60 21 DB07 DB07 61 22 DB06 DB06 62 23 DB05 DB05 63 24 DB04 DB04 64 25 DB03 DB03 65 26 DB02 DB02 66 27 DB01 DB01 67 28 DB00 DB00 68 29 DBP1 DBP1 69 30 DB15 DB15 70 31 DB14 DB14 71 32 DB13 DB13 72 33 DB12 DB12 73 34 5V 5V ...

Страница 151: ...1 41 08 DB02 DB02 42 09 DB03 DB03 43 10 DB04 DB04 44 11 DB05 DB05 45 12 DB06 DB06 46 13 DB07 DB07 47 14 P_CRCA P_CRCA 48 15 GND GND 49 16 GND GND 50 17 TERMPWR TERMPWR 51 18 TERMPWR TERMPWR 52 19 Reserved Reserved 53 20 GND GND 54 21 ATN ATN 55 22 GND GND 56 23 BSY BSY 57 24 ACK ACK 58 25 RST RST 59 26 MSG MSG 60 27 SEL SEL 61 28 C D C D 62 29 REQ REQ 63 30 I O I O 64 31 DB08 DB08 65 32 DB09 DB09 ...

Страница 152: ...This page is intentionally left blank ...

Страница 153: ...C141 E103 01EN D 1 APPENDIX D MODEL NAMES AND PRODUCT NUMBERS D 1 Model Names and Product Numbers This appendix lists model names types and product numbers ...

Страница 154: ...pin LVD CA05695 B150 MAH3091MC SCA2 LVD 512B 9 1 GB 6 32UNC CA05695 B120 25 4mm height 7 200 min 1 7 200rpm 1 disks 2 heads MAJ3364MP 68 pin LVD CA05668 B550 MAJ3364MC SCA2 LVD 512B 36 4 GB 6 32UNC CA05668 B520 25 4mm height 10 025 min 1 10 025rpm 5 disks 10 heads MAJ3182MP 68 pin LVD CA05668 B350 MAJ3182MC SCA2 LVD 512B 18 2 GB 6 32UNC CA05668 B320 25 4mm height 10 025 min 1 10 025rpm 3 disks 5 h...

Страница 155: ... Almagro 40 28010 Madrid SPAIN TEL 34 91 681 8100 FAX 34 91 681 8125 FUJITSU AUSTRALIA LIMITED 2 Julius Avenue Cnr Delhi Road North Ryde N S W 2113 AUSTRALIA TEL 61 2 9776 4555 FAX 61 2 9776 4556 FUJITSU HONG KONG LTD 10 F Lincoln House 979 King s Road Taikoo Place Island East Hong Kong TEL 852 2827 5780 FAX 852 2827 4724 FUJITSU KOREA LTD Coryo Finance Center Bldg 23 6 YoulDo Dong Young DungPo Gu...

Страница 156: ...of this publication What is your occupation Your other comments may be entered here Please be specific and give page paragraph and line number references where applicable Your Name Return Address Sales Operating Installing Maintaining Learning Reference Fair Poor Very Good Good Very Poor Fully covered Well Illustrated Thank you for your interest Please send this sheet to one of the addresses in a ...

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