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C141-E035-03EN

D - 2

D.1

Model Names and Product Numbers

Table D.1

MAA, MAB and MAC series model names and product numbers

Model name

(type)

SCSI type

Data block

length

(at factory

shipment)

Total

storage

capacity

(user area)

Ultra SCSI

Mounting

screw

Part number

Remarks

MAA3182SP

16-bit SE

512B

18.2 GB

#6-32UNC

CA01606-B922

MAA3182SC

16-bit SE

CA01606-B962

MAB3091SP

16-bit SE

512B

9.1 GB

#6-32UNC

CA01606-B522

MAB3091SC

16-bit SE

CA01606-B562

MAB3045SP

16-bit SE

512B

4.55 GB

#6-32UNC

CA01606-B322

MAB3045SC

16-bit SE

CA01606-B362

MAC3091SP

16-bit SE

512B

9.1 GB

#6-32UNC

CA01682-B522

MAC3091SC

16-bit SE

CA01682-B562

MAC3045SP

16-bit SE

512B

4.55 GB

#6-32UNC

CA01682-B322

MAC3045SC

16-bit SE

CA01682-B362

Note:

Only above models are available currently.

SE: Single-ended

MAx3xxxSC uses SCA-2 type connector.

1-inch height

7,200 rpm

3 disks

5 heads

1-inch height

7,200 rpm

5 disks

10 heads

1.6-inch height

7,200 rpm

10 disks

19 heads

1-inch height

10,000 rpm

3 disks

5 heads

1-inch height

10,000 rpm

5 disks

10 heads

Summary of Contents for MAA3182

Page 1: ...C141 E035 03EN MAA3182 SERIES MAB3091 MAB3045 SERIES MAC3091 MAC3045 SERIES DISK DRIVES PRODUCT MANUAL ...

Page 2: ...5 2 5 3 5 5 to 5 10 5 12 to 5 24 Chapter 6 Appendix A C 1 C 2 D 2 Appendix E revised 03 Jan 1998 Pages 1 3 1 4 1 7 to 1 9 Chapter 2 3 2 to 3 4 3 6 3 10 4 4 4 5 4 7 4 8 4 10 4 11 4 14 4 22 4 23 4 27 6 2 6 3 D 2 revised Specification No C141 E035 EN The contents of this manual is subject to change without prior notice All Rights Reserved Copyright 1998 FUJITSU LIMITED ...

Page 3: ......

Page 4: ...ty 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 Fujits...

Page 5: ...mation Systems Small Computer System Interface 2 SCSI 2 American National Standards Institute ANSI X3T9 2 85 52 Rev 4 B COMMON COMMAND SET CCS of the Small Computer System Interface SCSI American National Standards Institute ANSI X3T9 2 855D Rev 12 WORKING DRAFT Information Technology SCSI 3 Parallel Interface American National Standards Institute ANSI X3T10 10T1D Rev 6 Dfaft proposed American Nat...

Page 6: ...r 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 MAA31xxxx MAB30xxxx and MAC30xxxx series disk drives Chapter 5 INSTALLATION This chapter explains how to install MAA31xxxx MAB30xxxx and MAC30xxxx series d...

Page 7: ...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 ...

Page 8: ...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 AA 3 182 SC Interface types SP Single Ended 16 bit SCSI SC Single Ended 16 bit SCSI SCA2 connector For...

Page 9: ...cifications 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 Maintenance Manual 1 Specifications and Equipment Configuration 2 Maintenance and Diagnostic 3 Error Analysis 4 Removal and Replacement Procedures 5 P...

Page 10: ...5 Reliability 2 5 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...

Page 11: ...g 5 9 5 3 4 Mode settings 5 10 5 4 Mounting Drives 5 11 5 4 1 Check before mounting 5 11 5 4 2 Mounting procedures 5 11 5 5 Connecting Cables 5 12 5 6 Confirming Operations after Installation and Preparation for use 5 13 5 6 1 Confirming initial operations 5 13 5 6 2 Checking SCSI connection 5 15 5 6 3 Formatting 5 18 5 6 4 Setting parameters 5 20 5 7 Dismounting Drives 5 24 CHAPTER 6 DIAGNOSTICS ...

Page 12: ... B 1 B 1 Setting Terminals MAx3xxxSP Single ended 16 bit SCSI B 2 APPENDIX C CONNECTOR SIGNAL ALLOCATION C 1 C 1 SCSI Connector Signal Allocation SCA2 type 16 bit SCSI C 2 C 2 SCSI Connector Signal Allocation Single ended type 16 bit SCSI C 3 APPENDIX D MODEL NAMES AND PRODUCT NUMBERS D 1 D 1 Model Names and Product Numbers D 2 APPENDIX E SCSI INTERFACE FUNCTIONS E 1 E 1 SCSI interface function sp...

Page 13: ...te block allocation by REASSIGN BLOCKS command 3 15 4 1 External dimensions MAA31xxSC 4 2 4 2 External dimensions MAA31xxSP 4 3 4 3 External dimensions MAB30xxSC MAC30xxSC 4 4 4 4 External dimensions MAB30xxSP MAC30xxSP 4 5 4 5 IDD orientation 4 6 4 6 Mounting frame structure 4 7 4 7 Limitation of side mounting 4 7 4 8 Surface temperature measurement points MAA31xxxx MAB30xxxx MAC30xxxx 4 8 4 9 Se...

Page 14: ...del 4 22 4 25 SCA2 type SCSI connector 4 23 4 26 SCSI cable connector 4 25 4 27 SCSI cable termination 4 27 4 28 External operator panel circuit example MAx3xxxSP 4 28 5 1 SCSI bus connections 5 3 5 2 MAx3xxxSP setting terminals position 5 5 5 3 Setting terminals MAx3xxxSP 5 6 5 4 Checking the SCSI connection A 5 16 5 5 Checking the SCSI connection B 5 17 6 1 Revision label 6 7 6 2 Indicating revi...

Page 15: ... bit SCSI model MAx3xxxSP 5 7 5 2 Setting SCSI terminal power supply single ended 16 bit SCSI model MAx3xxxSP 5 8 5 3 Motor start mode setting single ended 16 bit SCSI model MAx3xxxSP 5 8 5 4 Write protect setting single ended 16 bit SCSI model MAx3xxxSP 5 9 5 5 Setting of connection of terminating resistor on SCSI interface single ended 16 bit SCSI model MAx3xxxSP 5 9 5 6 Default mode settings by...

Page 16: ...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...

Page 17: ...of system functions 3 8 bit SCSI 16 bit SCSI The IDD has 16 bit data width 16 bit SCSI which have the wide transfer function suitable for SCSI 3 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 Up to 4...

Page 18: ...uitable 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 7...

Page 19: ...f two for the 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 A large capacity...

Page 20: ...ration 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 actuator and air ...

Page 21: ...C141 E035 02EN 1 6 Figure 1 2 MAA31xxSP outer view Figure 1 3 MAB30xxSC outer view ...

Page 22: ...C141 E035 03EN 1 7 Figure 1 4 MAB30xxSP outer view Figure 1 5 MAC30xxSC outer view Figure 1 6 MAC30xxSP outer view ...

Page 23: ... 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 Figure 1 7 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 sp...

Page 24: ...movement of the rotating disks air is 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 ...

Page 25: ...iguration 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 throu...

Page 26: ... 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...

Page 27: ......

Page 28: ...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 ...

Page 29: ... 0 ms Write Start time Stop time 30 s typ 60 s max 30 s typ Recording mode PR4ML Recording density 121 000 to 159 000 bpi 116 093 to 159 084 bpi Track density 9 620 TPI 9 200 TPI External dimensions Height Width Depth 41 3 mm 101 6 mm 146 0 mm 25 4 mm 101 6 mm 146 0 mm Weight 1 0 kg 0 65 kg 0 70 kg 16bit SCSI Single ended type 13 W 9 W 14 W Interface Fast SCSI Cable length 6 m max Fast 20 SCSI Cab...

Page 30: ...nd 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 The maximum data transfer rate may be restricted to the resp...

Page 31: ...ms half sin 60G or less 11 ms half sin Operating 0 m to 3 000 m above sea level Non operating 0 m to 12 000 m above sea level 12 VDC 5 Ready Average Spin up Seek Peak within 100 µs at spin up 0 77 A 2 5 A Max 3 0 A 0 43 A 1 8 A Max 3 0 A 0 27 A 1 8 A Max 3 0 A 0 85 A 2 5 A Max 3 0 A 0 60 A 2 5 A Max 3 0 A 5 VDC 5 6 Ready Random W R about 80 IOPS 0 75 A 1 1 A Ripple 7 5 V 100 mVp p 12 V 150 mVp p 1...

Page 32: ...d 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 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 rep...

Page 33: ...51 C to 55 C 3 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 throughout the year when the IDD is operating 4 Data security at power failure Integrity of the data on the...

Page 34: ...g resistor is mounted on the PCA TERMPWR signal send receive function Ο Non shielded type 50 mil pitch 16 bit SCSI Ο Shielded type Data bus parity Ο Bus arbitration function Ο Disconnection reconnection function Ο SCSI ID 8 bit SCSI 16 bit SCSI 0 to 7 Jumper selection 0 to 15 Jumper selection LUN logical unit number 0 fixed Asynchronous mode 8 bit SCSI 16 bit SCSI Ο 6 MB s max Ο 12 MB s max Synchr...

Page 35: ......

Page 36: ...lock 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 test...

Page 37: ...tion 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 2 show the zone layout and the track capacity ...

Page 38: ...700 to 3 499 3 500 to 4 259 4 260 to 5 089 Byte track 162 250 154 166 150 833 146 666 141 666 136 666 Sector track 248 240 230 224 216 208 Zone 7 8 9 10 11 12 Cylinder 5 090 to 6 099 6 100 to 6 479 6 480 to 7 149 7 150 to 7 669 7 670 to 7 959 7 960 to 8 489 Byte track 130 000 127 625 121 900 118 333 115 833 110 416 Sector track 200 194 186 180 176 167 Table 3 3 Zone layout and track capacity MAC30...

Page 39: ...ot reach 9 041 MAA31xxxx 8 491 MAB30xxxx and 8 691 MAC30xxxx 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 2 Internal test space The Internal test space is an area for diagnostic purpo...

Page 40: ...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 9space sectors per cylinder is 20 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 ...

Page 41: ...ding 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 15MHz 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 lengt...

Page 42: ...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...

Page 43: ...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 Trailing TRNG Sync Byte SB In this field special pattern in the length in bytes listed in Figure 3 6 is written 4 LBA The logical block address is written in this field 5 Data field User data is stored in the data field of the sector The length of the data field is equal to th...

Page 44: ... the fly correct the single burst errors with lengths of up to 89 bits 8 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 9 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 n...

Page 45: ...f physical sectors 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 ca...

Page 46: ...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...

Page 47: ...as the G list G 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...

Page 48: ...l 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 1 Alternate block allocation during FORMAT UNIT command execution When the FORMAT UNIT command is specified the allocation of the alternate bl...

Page 49: ... allocation is made to initialize format the disk If a defective data block is detected during the check the IDD generates the C list for defect location information and 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 th...

Page 50: ...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...

Page 51: ...ed 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 terminates 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 auto...

Page 52: ... 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 ...

Page 53: ...C141 E035 02EN 4 2 Figure 4 1 External dimensions MAA31xxSC ...

Page 54: ...C141 E035 02EN 4 3 Figure 4 2 External dimensions MAA31xxSP ...

Page 55: ...C141 E035 03EN 4 4 Figure 4 3 External dimensions MAB30xxSC MAC30xxSC ...

Page 56: ...C141 E035 03EN 4 5 Figure 4 4 External dimensions MAB30xxSP MAC30xxSP ...

Page 57: ...low Note Generally SG and FG are connected at one point in the system enclosure Therefore use following procedure to maintain the insulation when mounting the IDD a Use the frame with an embossed structure or the like to avoid contact between the DE base and FG 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 projecti...

Page 58: ...ce actually mounted to the frame inside the system special attention must be given to the cautionary notes below Figure 4 6 Mounting frame structure 2 Limitation of side mounting Mount the side using the screw holes at both the ends as shown in Figure 4 7 Do not use the center hole Figure 4 7 Limitation of side mounting Use these holes Do not use these holes ...

Page 59: ...ow 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 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 i...

Page 60: ...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...

Page 61: ...C141 E035 03EN 4 10 MAB30xxxx MAC30xxxx Figure 4 10 Air pressure adjustment hole MAA31xxxx Air pressure adjustment hole Air pressure adjustment hole Air pressure adjustment hole ...

Page 62: ...shows the waveform of 12 VDC 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 given in Figure 4 12 must be satisfied between the IDD and at least one of the SCSI devices s...

Page 63: ... 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 14 must be satisfi...

Page 64: ...lly 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 See Subse...

Page 65: ...ocations of connectors and terminals on the single ended 16 bit SCSI model Power supply connector SCSI connector External operator panel connector Figure 4 16 Connectors and terminals location single ended 16 bit SCSI SCSI connector CN1 External operator panel Spindle sync connector CN7 External operator panel connector CN1 Power supply connector CN1 ...

Page 66: ...or See Section C3 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 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 supp...

Page 67: ...it SCSI external operator panel 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...

Page 68: ...C141 E035 02EN 4 17 Figure 4 20 External operator panel connector CN7 ...

Page 69: ...bit SCSI ID3 ID2 ID1 ID0 Input signals 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 5 Figure 4 21 16 bit SCSI ID external input ...

Page 70: ... 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 Figure 4 22 Output signal for external LED c SYNC Spindle sync Input output signal The pin CN1 A6 or CN7 10 inputs or outputs the signal for rotational synchronization when the IDD carries out ro...

Page 71: ...TERMON terminator on Input signal The CN1 A9 TERMON or CN6 06 DISCON pin setting specifies whether to operate the terminating resistor built in to the IDD Table 4 2 shows the electrical requirements See Subsection 5 4 4 for the requirements for terminating resistor operation Table 4 2 External inputs for operating terminating resistor 16 bit single ended type Input level Function 0 to 0 4 VDC The ...

Page 72: ...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 1 Figure 4 23 Cables connection 16 bit SCSI model External operator panel example ...

Page 73: ...SC MAB30xxSC MAC30xxSC 1 Connectors Figure 4 24 shows 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 SCA2 type SCSI model SCSI connector ...

Page 74: ...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 ESD contact ...

Page 75: ...ted S4 Contact FCN 723J G AM Fujitsu Limited Cable AWG28 MAx3xxxSC SCSI connector CN1 Connector 787311 1 AMP 1 SCSI cable All SCSI devices on one bus are daisy chained with an SCSI cable A terminating resistor must be mounted in the SCSI device at each end of the SCSI cable Because an SCSI terminating resistor module has been mounted in the IDD of single ended type SCSI at factory shipment it must...

Page 76: ... 2 540 0 110 C2 41 910 1 650 C3 1 270 0 050 C4 46 280 1 822 C5 5 690 2 240 C6 42 540 1 675 Note The tolerance is 0 127 mm 0 005 inch unless otherwise specified Figure 4 26 SCSI cable connector Symbol SCSI cable connector for 16 bit SCSI Remarks ...

Page 77: ... pF Up to 1 5 m 5 to 8 SCSI devices having capacitance of 25 pF For the SCSI cables the use of 25 and 34 pair twisted pair cables satisfying the requirements in Table 4 5 is recommended Table 4 5 SCSI cable requirements Requirements 16 bit SCSI 34 pair Conductor size 30 AWG or bigger Characteristic impedance 90 to 132 Ω Twist pair cable condition Pins n and n 33 To maintain the transmission charac...

Page 78: ...d 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 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 connec...

Page 79: ... 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 Figure 4 28 External operator panel circuit example MAx3xxxSP Note Do not connect the external LED to both CN1 and CN7 Connect it to either of them ...

Page 80: ...tical 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 mat and body grounding when handling the drive Hold the DE when handling the drive Do not touch PCAs except for setting 2 Unpackaging a Use a flat...

Page 81: ...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 Delivery a When delivering the drive provide packaging and do not turn it over b Minimize the delivery distance after unpacking and avoid shocks and vibrations with cushions For...

Page 82: ...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 ...

Page 83: ...C141 E035 01EN 5 4 3 Connecting more than one IDD multi host Figure 5 1 SCSI bus connections 2 of 2 ...

Page 84: ...on and default settings CAUTION 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 MAx3xxxSP CN7 13 14 3 To short the setting terminal use the short plug attached when the device is shipped from the fa...

Page 85: ...C141 E035 02EN 5 6 Figure 5 3 Setting terminals MAx3xxxSP ...

Page 86: ...nel connector CN1 all pins listed in Table 5 1 should be open If any of pins are shorted unexpected SCSI ID is set Table 5 1 SCSI ID setting single ended 16 bit SCSI model MAx3xxxSP SCSI ID MAx3xxxSP CN7 5 6 3 4 1 2 5 6 0 Open Open Open Open 1 Open Open Open Short 2 Open Open Short Open 3 Open Open Short Short 4 Open Short Open Open 5 Open Short Open Short 6 Open Short Short Open 7 Open Short Shor...

Page 87: ...on Short 1 1 Setting at factory shipment 2 Motor start mode Set how to control the starting of the IDD spindle motor according to Table 5 3 This setting only determines 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 This setting is not provided fo...

Page 88: ...bit SCSI model MAx3xxxSC Since there is no SCSI terminating resistor on the SCSI interface for SCA2 type 16 bit SCSI there is no setting on the IDD b Single ended 16 bit SCSI model MAx3xxxSP Setting terminals CN6 5 6 set whether to use the terminating resistor circuit on the SCSI interface provided for the IDD see Table 5 5 IMPORTANT When the external operator panel is connected using the external...

Page 89: ...pment Refer to Section 3 1 4 of the SCSI Logical Interface Specifications for details of the command Table 5 6 Default mode settings by CHANGE DEFINITION command Mode setting Contents 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 Re...

Page 90: ...CSI ID CN7 7 8 5 6 3 4 1 2 SCSI ID __ 2 Write protect CN7 13 14 Short Open 5 4 2 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 ...

Page 91: ...ils of the requirements for IDD connector positions and connecting cables Power cable SCSI cable External operator panel cable if required Spindle sync cable The general procedures and notes on connecting cables are described below Especially pay attention to the inserting direction of each cable connector CAUTION 1 Check that system power is off before connecting or disconnecting cables 2 Do not ...

Page 92: ...cribes 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 1 Initial operation in the case of setting so that motor starts at powering on a When power is turned on the LED blinks an instant and the IDD executes initial self diagnosis b If an er...

Page 93: ...ables are mounted correctly b Check that power and voltages are supplied correctly measure them with the IDD power connection position c 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 d If an error is detected in initial self diagnosis the LED on the front panel blinks In this case it is recomme...

Page 94: ...y 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 ...

Page 95: ...C141 E035 02EN 5 16 Motor starts when power is turned on Figure 5 4 Checking the SCSI connection A ...

Page 96: ...C141 E035 02EN 5 17 Motor starts by START STOP command Figure 5 5 Checking the SCSI connection B ...

Page 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...

Page 98: ...or 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 2 FORMAT UNIT command Initialize all sides o...

Page 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...

Page 100: ...ate 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 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 0 30 sec b Verify error recovery parameters page code 7 Parameter De...

Page 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...

Page 102: ... which prefetch is suppressed X FFFF Minimum prefetch X 0000 Maximum prefetch X 0XXX Equivalent to 122 KB 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 a...

Page 103: ...the general procedures and notes on dismounting the drive CAUTION 1 Dismount the drive after disconnecting system power Do not remove mounting screws holding the cables and drive while power is on 2 Do not move the drive until it completely stops 30 seconds after spindle motor is stopped with START STOP UNIT command or after power is turned off a Remove the power cable b Remove the SCSI cable c Wh...

Page 104: ...ing 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 Subsection 6 1 2 Table 6 1...

Page 105: ...e 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 co...

Page 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...

Page 107: ...rror 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 Notes When the SEND DIA...

Page 108: ...rive in which user data is stored 6 2 Maintenance Information 6 2 1 Maintenance requirements 1 Preventive maintenance Preventive maintenance such as replacing air filters is not required CAUTION Do not open the DE in the field because it is completely sealed 2 Service life The service life under suitable conditions and treatment is as follows The service life is depending on the environment temper...

Page 109: ...information for replacing or repairing the disk drive Generally the following 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 spec...

Page 110: ...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 see Figure 6 2 Note When the revision number is changed after the drive i...

Page 111: ...C141 E035 02EN 6 8 At shipment Figure 6 2 Indicating revision numbers Rev A3 Rev A2 Revising at field ...

Page 112: ...ISTORS A 1 Locations of Connectors and Setting Terminals MAx3xxxSC SCA2 type 16 bit SCSI A 2 Locations of Connectors and Setting Terminals MAx3xxxSP single ended type 16 bit SCSI This appendix shows the locations of connectors setting terminals and terminating resistor for 8 and 16 bit SCSIs ...

Page 113: ...inals MAx3xxxSC SCA2 type 16 bit SCSI Figure A 1 Locations of connectors and setting terminals MAx3xxxSC SCA2 type 16 bit SCSI MAA31xxSC Rear view Viewed from bottom side CN1 Pin 1 Pin 41 4 6 0 5 4 6 0 5 Pin 80 Pin 40 MAB30xxSC Rear view Pin 1 Pin 41 Pin 80 Pin 40 ...

Page 114: ...ype 16 bit SCSI Viewed from bottom side MAB31xxSP Pin 35 Pin 68 Pin 1 Connector for external operator panel CN1 Connector for external operator panel CN1 SCSI connector CN1 SCSI connector CN1 SCSI connector CN1 SCSI connector CN1 Pin A2 Pin A1 Pin A12 Pin 1 Pin 1 Pin 68 Pin 35 Pin 34 Pin A1 Pin A2 Pin A12 Pin A11 Pin A11 Pin 1 Pin 34 Rear View MAA31xxSP 1 6 CN7 1 2 15 16 CN6 CN1 Rear view ...

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Page 116: ...C141 E035 01EN B 1 APPENDIX B SETTING TERMINALS B 1 Setting Terminals MAx3xxxSP Single ended 16 bit SCSI This appendix describes setting terminals ...

Page 117: ...stor power to SCSI bus 1 Open Started by the START STOP UNIT command Short Started by turning the power supply on 1 Open Disconnects terminating resistor circuit Note See the description in Section 5 3 for details of the setting requirements and notes Connection of terminating resistor circuit on SCSI interface Motor start mode Terminal power supply Setting item Setting contents Short Connects ter...

Page 118: ... Open Short Short Open SCSI ID 6 Common to 8 bit and 16 bit SCSI Open Short Short Short SCSI ID 7 Common to 8 bit and 16 bit SCSI Short Open Open Open SCSI ID 8 16 bit SCSI only Short Open Open Short SCSI ID 9 16 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...

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Page 120: ...APPENDIX C CONNECTOR SIGNAL ALLOCATION C 1 SCSI Connector Signal Allocation SCA2 type 16 bit SCSI C 2 SCSI Connector Signal Allocation single ended type 16 bit SCSI This appendix describes the connector signal allocation ...

Page 121: ...10 GND 48 09 DB09 GND 49 10 DB08 GND 50 11 I O GND 51 12 REQ GND 52 13 C D GND 53 14 SEL GND 54 15 MSG GND 55 16 RST GND 56 17 ACK GND 57 18 BSY GND 58 19 ATN GND 59 20 DBP0 GND 60 21 DB07 GND 61 22 DB06 GND 62 23 DB05 GND 63 24 DB04 GND 64 25 DB03 GND 65 26 DB02 GND 66 27 DB01 GND 67 28 DB00 GND 68 29 DBP1 GND 69 30 DB15 GND 70 31 DB14 GND 71 32 DB13 GND 72 33 DB12 GND 73 34 5V 5V RETURN MATED 2 ...

Page 122: ...ND DB01 41 08 GND DB02 42 09 GND DB03 43 10 GND DB04 44 11 GND DB05 45 12 GND DB06 46 13 GND DB07 47 14 GND DBP0 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 GND ATN 55 22 GND GND 56 23 GND BSY 57 24 GND ACK 58 25 GND RST 59 26 GND MSG 60 27 GND SEL 61 28 GND C D 62 29 GND REQ 63 30 GND I O 64 31 GND DB08 65 32 GND DB09 66 33 G...

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Page 124: ...C141 E035 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 ...

Page 125: ...22 MAB3091SC 16 bit SE CA01606 B562 MAB3045SP 16 bit SE 512B 4 55 GB 6 32UNC CA01606 B322 MAB3045SC 16 bit SE CA01606 B362 MAC3091SP 16 bit SE 512B 9 1 GB 6 32UNC CA01682 B522 MAC3091SC 16 bit SE CA01682 B562 MAC3045SP 16 bit SE 512B 4 55 GB 6 32UNC CA01682 B322 MAC3045SC 16 bit SE CA01682 B362 Note Only above models are available currently SE Single ended MAx3xxxSC uses SCA 2 type connector 1 inc...

Page 126: ...NDIX E SCSI INTERFACE FUNCTIONS E 1 SCSI interface function specifications This appendix lists the SCSI interface functions provided for the IDD Refer to the SCSI Logical Interface Specifications for details of each functions ...

Page 127: ...T TAG 0D Ο CLEAR QUEUE 0E Ο INITIATE RECOVERY 0F RELEASE RECOVERY 10 TERMINATE I O PROCESS 11 Ο CONTINUE I O PROCESS 12 TARGET TRANSFER DISABLE 13 IDENTIFY 80 FF Ο Disconnect Privilege DiscPriv Bit Ο Logical Unit Target LUNTAR Bit SIMPLE QUEUE TAG 20 Ο HEAD OF QUEUE TAG 21 Ο ORDERED QUEUE TAG 22 Ο IGNORE WIDE RESIDUE 23 Ο 16 bit SCSI only MODIFY DATA POINTER 01 00 SYNCHRONOUS DATA TRANSFER REQUEST...

Page 128: ...ysical sector address format defecting listing 0 Ο Physical sector address format defecting listing 0 Ο CmpLst complete list Ο FOV Format Options Valid Ο DPRY Disable Primary Ο DCRT Disable Certification Ο STPF Stop Format IP Initialization Pattern DSP Disable Saving Parameters Immed Immediate Ο REASSIGN BLOCKS 07 Ο READ 08 Ο WRITE 0A Ο SEEK 0B Ο INQUIRY 12 Ο EVPD Enable Vital Product Data Ο Typic...

Page 129: ...ER Post Error Ο Changeable DTE Disable Transfer on Error Specified value ignored DCR Disable Correction Ο Changeable Retry count at read Ο Changeable Correctable bit length Ο Not changeable Head offset count Data strobe offset count Retry count at write Ο Changeable Recovery processing time restriction Ο Changeable Page 2 Disconnection reconnection Ο 16 B Savable Buffer full ratio Ο Changeable Buf...

Page 130: ...ead Sector Ο Not changeable RMB Removable Ο Not changeable SURF Surface Ο Not changeable Page 4 Drive parameter Ο 24 B Savable Number of cylinders Ο Changeable Number of heads Ο Not changeable Write Precompensation start cylinder Reduced Write Current start cylinder Drive step rate Landing zone cylinder RPL Rotational Position Locking Rotational synchronization offset Medium rotational speed Ο Not...

Page 131: ...of segments Ο Changeable Buffer segment size Page A Control mode page Ο 8 B Savable RLEC Report Log Exception Condition Specified value ignored Queue Algorithm modifier Ο Changeable QErr Queue Error management Ο Changeable DQue Disable Queuing Ο Changeable EECA Enable Extended Contingent Allegiance RAENP Ready AEN Permission UAAENP Unit Attention AEN Permission EAENP Error Attention AEN Permission...

Page 132: ...t Ο DevOfl Device Offline Unit Ofl Unit Offline Ο Page 0 Specifiable page code listing Ο Page 40 Logical physical address conversion Ο Page 80 Mode setup state report VU 1 Page 81 Device specific information VU 1 REVENT ALLOW MEDIUM REMOVAL 1E SEARCH BLOCK HIGH VU 1 20 SEARCH BLOCK EQUAL VU 1 21 SEARCH BLOCK LOW VU 1 22 READ CAPACITY 25 Ο PMI Parial Medium Indicator Ο READ EXTENDED 28 Ο WRITE EXTE...

Page 133: ...Ο Mode 001 Header Data Mode with Address Ο Mode 010 Data Mode Ο Mode 100 Download Microcode Ο Mode 101 Download Microcode and Save Ο READ BUFFER 3C Ο Mode 000 Header Data Mode Ο Mode 001 Header Data Mode with Address Ο Mode 010 Data Mode Ο Mode 011 Descriptor Mode Ο READ LONG 3E Ο CORRCT Corrected WRITE LONG 3F Ο CHANGE DEFINITION 40 Ο WRITE SAME 41 Ο LBdata Logical Block Data Ο LBdata Physical Bl...

Page 134: ...ion Untagged queuing function Ο Tagged command queuing function Ο Contingent Allegiance CA Ο Sense held for each INIT Extended Contingent Allegiance ECA Asynchronous condition notification feature AEN async event notification Read ahead cache feature Ο Cache control feature DPO disable page out FUA force unit access Write cache feature Ο GOOD 00 Ο CHECK CONDITION 02 Ο CONDITION MET 04 Ο BUSY 08 Ο ...

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Page 136: ...s at illegal operation 5 14 Checking SCSI connection 5 15 5 16 5 17 Checking at abnormal end 5 18 Checking procedure 5 15 Command queuing feature 1 3 Compactness 1 2 Confirming Operations after Installation for use 5 13 Confirming initial operations 5 13 Connection of terminating resistor 5 9 Connection requirements 4 14 Connections 5 3 Connector signal Allocation C 2 Connector signal allocation C...

Page 137: ...4 15 Interface test 6 5 Internal test space 3 4 L LBA 3 8 LUN 1 11 Large capacity 1 4 Leak magnetic flux 4 9 Limitation of side mounting 4 6 Location of connector A 2 Logical data block addressing 3 11 Low noise 1 5 Low power consumption 1 5 Low vibration 1 5 M MODE SELECT EXTENDED command 5 18 MODE SELECT command 5 18 MPU 1 8 MR 1 8 MTBF 2 5 MTTR 2 5 Magnet Resistive 1 8 Maintenance information 6...

Page 138: ...ce functions specifications E 2 SCSI CCS standard 1 2 SG 4 27 SG terminal 4 16 Sector format 3 8 Sector slip treatment 3 12 Seek test 6 2 Self diagnostics 6 1 Sequential read test 6 5 Sequential starting of spindle motor 4 13 Service clearance area 4 9 Service life 2 6 6 5 Service system and repairs 6 6 Setting SCSI terminal 5 8 Setting SCSI terminal power supply 5 8 Setting check list 5 11 Settin...

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Page 141: ...i MI ITALY TEL 39 2 26294 1 FAX 39 2 26294 201 FUJITSU FRANCE S A I 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 ESPAÑA S A Almagro 40 28010 Madrid SPAIN TEL 34 1 581 8100 FAX 34 1 581 8125 FUJITSU AUSTRALIA LIMITED 475 Victoria Avenue Chatswood 2067 N S W AUSTRALIA TEL 61 2 410 4555 FAX 61 2 411 8603 8362 FUJITSU HONG KONG LTD Room ...

Page 142: ...f 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 the...

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