Seagate Hawk 2 ST11900N Product Manual Download Page 4

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Publication Number: 77767450, Revision E
March 1995

Seagate

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, Seagate Technology

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and the Seagate logo are registered trademarks of Seagate Technology, Inc.

Hawk™, SeaFAX



, SeaFone



, SeaTDD



and SeaBOARD



are trademarks of Seagate Technology, Inc.

Other product names are registered trademarks or trademarks of their owners.

Seagate reserves the right to change, without notice, product offerings or specifications. No part of this publica-
tion may be reproduced in any form without written permission of Seagate Technology, Inc.

Summary of Contents for Hawk 2 ST11900N

Page 1: ...Product Manual Volume 1 Hawk 2 Family ST12400N ND NC ST11900N ND NC...

Page 2: ......

Page 3: ...ST11900N ND NC Product Manual Volume 1 ST12400N ND NC Hawk 2 Family...

Page 4: ...agate Technology Inc Hawk SeaFAX SeaFone SeaTDD and SeaBOARD are trademarks of Seagate Technology Inc Other product names are registered trademarks or trademarks of their owners Seagate reserves the r...

Page 5: ...thru 71 technical changes pages 46 47 52 53 and 54 C PLD 84224 5 26 94 SS v vi 6 8 11 12 15 16 21 23 24 25 29 30 31 34 35 37 46 47 51 54 56 60 64 D PLD 84392 6 14 94 D Ashby v 2 14 and 26 E PLD 84542...

Page 6: ...characteristics Visible to User 8 5 2 1 Seek command execution time 8 5 2 2 Format drive command execution time 9 5 2 3 Read data command execution time 9 5 2 4 Write data command execution time 9 5...

Page 7: ...6 3 Drive mounting 31 8 0 Media characteristics 32 8 1 Media description 32 9 0 Defect and error management 33 9 1 Drive internal defects errors 33 9 2 SCSI systems error considerations 33 10 0 Option...

Page 8: ...____________________________________________________________ Table of contents 12 0 Options 67 12 1 Front panel 67 12 2 Single unit shipping pack 67 13 0 Accessories 68 13 1 Front panel kit 68 13 2 In...

Page 9: ...738479 and the ANSI SCSI 2 stan dard The Hawk 2 Family drives are classified as Intelligent peripherals The Hawk 2 Family provides Level 2 conformance highest level with the ANSI SCSI 1 standard Detai...

Page 10: ...Canadian Department of Communications However the unit has been tested using proper shielding and grounding and found to be compliant with Class A limits of the FCC Rules and the Regulations of The Ca...

Page 11: ...irculates within the HDA through a nonreplaceable filter to maintain a contamination free head disc environment Refer to Figure 3 0 1 for an exploded view of the drive NEVER disassemble the Head Disc...

Page 12: ...Manual Hawk 2 Family SCSI 2 Volume 1 Rev B _________________________________________________________________________________________ Figure 3 0 1 Hawk 2 family drive ST12400N ND Family PCB ST12400NC F...

Page 13: ...landing zone Automatic shipping lock Automatic Thermal Compensation Patented Tri Phase Servo with embedded Grey Code track address to guarantee servo positioning Self diagnostics performed at power on...

Page 14: ...ode Select Command and Format Command in the SCSI Interface Product Manual P N 77738479 2 Twelve spare sectors are on one track ST11900 has 6 spare sectors per cylinder 3 Spare cylinders are on the in...

Page 15: ...ls terminators must be installed external to the drive These external terminators must be provided by the user systems integrator or host equipment manufacturer If the drive is attached to a bus that...

Page 16: ...5 r min Average Rotational Latency 5 54 5 54 ms 5 2 SCSI Seek Read and Write performance characteristics visible to user 8 Refer to Section 11 7 and to the SCSI 2 Interface Product Manual 77738479 for...

Page 17: ...m Full Stroke Seek 31 38 ms 2 b Single Sector Read and Transfer of data to Host time from receipt of last byte of the CDB to the request for a status byte transfer to Host 7 1 Typical Zero Stroke Seek...

Page 18: ...c Maximum Average 3 1 MBytes sec 2 4 MBytes sec Sector Sizes 512 user data blocks default Variable 256 to 4096 in even sector sizes Synchronous Transfer Rate From 1 25 MByte sec to 10 0 MBytes sec See...

Page 19: ...SCSI command is received A SCSI command being executed is not interrupted for automatic adaptive temperature compensation If adaptive thermal compensation is in process when a SCSI command is received...

Page 20: ...ts Mode Select Page 08h byte 13 from which data is read and to which data is written The drive maintains a table of logical block disk medium addresses of the data stored in each segment of the buffer...

Page 21: ...of each segment 5 5 2 Prefetch operation If the Prefetch feature is enabled data in contiguous logical blocks on the disc immediately beyond that which was requested by a Read command can be retrieve...

Page 22: ...in a system in synchronized mode can increase the system capacity and transfer rate in a cost effective manner For Hawk 2 models the interface consists of a twisted pair cable that connects the drive...

Page 23: ...and 10 2 1 1 2 This connection is only available on model ST12400NC Figure 5 7 1 Synchronized drive interconnect diagram Master Sync Source Host or other drive Spindle Control Drive 1 5V R T J6 6 5 S...

Page 24: ...on period The trailing falling edge of the reference signal is used by the master and the slave drives to phase lock their spindles A maximum of 10 seconds is allowed for a slave to synchronize with t...

Page 25: ...the target is unable to complete the I O process The additional sense code is set to RPL STATUS CHANGE The drive may be operated with a rotational skew when synchronized The rotational skew is applied...

Page 26: ...ion see Section 7 2 b The drive has been formatted with the SCSI FORMAT commands c Errors caused by media defects or host system failures are excluded from error rate computations Refer to Paragraph 8...

Page 27: ...with a Medium 3h or Hardware error 4h reported in the Sense Key This is an unrecoverable seek error Unrecoverable seek errors are classified as failures for MTBF calculations Ref section 5 1 1 2 of S...

Page 28: ...not be reformatted unless the sector size or sparing allocation scheme is changed 6 2 6 Service tools No special tools are required for site installation or recommended for site maintenance Refer to...

Page 29: ...e maintained after the drive signifies that its power up sequence has been completed and that the drive is able to accept selection by the Host Initiator 3 See 12 V current profile level T6 in Figure...

Page 30: ...g The drive protects against inadvertent writing during power up and down Daisy chain operation requires that power be maintained on the terminated drive to ensure proper termi nation of the periphera...

Page 31: ...nterface circuits typical operating power dissipation is 10 8 watts 36 8 BTUs per hour of DC power average at nominal voltages Typical power dissipation under idle conditions is 8 9 watts 30 4 BTUs pe...

Page 32: ...impact to specified MTBF To achieve the specified MTBF the values of Table 7 4 1 1 Column 2 must be considered maximum average operating case temperatures Continual or sustained operation at case tem...

Page 33: ...a single 80 pin connector on NC models Shown is a 50 pin SCSI I O connector and the 4 pin DC power connector Figure 7 4 1 1 Locations of components listed in Table 7 4 1 1 S E A G A T E HDA J1 U7 U11...

Page 34: ...ith the drive mounted by any of the four methods shown in Figure 7 4 4 1 Orientation of the side nearest the LED may be up or down though the figure shows it down 7 4 4 1 Shock a Operating The drive a...

Page 35: ...2 Volume 1 Rev B 27 ________________________________________________________________________________________ Figure 7 4 4 1 Recommended mounting S E A G A T E S E A G A T E Z Y X Z Y X A B A1 B1 A B A...

Page 36: ...rive shall not incur physical damage or degraded performance as a result of continuous vibration not exceeding 5 22 Hz 0 081 inches 2 05 mm displacement 22 400 Hz 2 00 g s Vibration may be applied in...

Page 37: ...62 620 4 000 250 1 750 3 750 2 370 1 725 4 100 0 19 0 015 145 80 101 60 41 15 60 00 15 75 101 60 6 35 44 45 95 25 60 20 43 82 104 14 4 83 0 381 A B C D E F G H J K L M N P max 0 010 0 010 0 026 0 010...

Page 38: ...0 0 010 0 010 0 005 0 010 0 010 0 010 0 018 0 013 25 25 66 25 25 25 25 25 12 25 25 25 45 33 Mounting holes three on each side 6 32 UNC Max screw length into side of drive 0 15 in 3 81 mm Screw tighten...

Page 39: ...deration should be given to make sure adequate air circulation is present around the PCBs to meet the requirements of 7 4 1 7 6 3 Drive Mounting When mounting the drive using the bottom holes care mus...

Page 40: ..._________________ 8 0 Media characteristics 8 1 Media description The media used on the drive has a diameter of approximately 95 mm approximately 3 7 inches The aluminum substrate is coated with a thi...

Page 41: ...I 3 Interface Product Manual P N 77738479 Data correction by ECC is applied to recover data from additional flaws if they occur Details of the SCSI commands supported by the drive are described in SCS...

Page 42: ...LED Delay Motor Start Enable Motor Start Write Protect Parity Option Term Power from Drive Term Power to SCSI Bus Term Power from SCSI Bus Jumper Positions Position A Pin 1 HDA Side View of Drive J1...

Page 43: ...er is applied i e drive 0 spindle starts immediately when DC power connected drive 1 starts after 12 second delay drive 2 starts after 24 second delay etc On On Drive spindle starts when Start Unit co...

Page 44: ...ption A2 A1 A0 Drive ID on SCSI bus Either J5 or J6 optional may be used to select drive ID Both should not be used at the same time because at some future time when the ID is changed the user could f...

Page 45: ...ive is configured as a master and is an input otherwise The reference index signal is connected from drive to drive in a daisy chain fashion as shown in Figure 5 7 1 10 2 1 1 Drivers and receivers Fig...

Page 46: ...57 010 236 max 090 128 Figure 10 2 1 2 Configuration select header specification Connector used has 12 pins 10 3 Grounding Signal ground PCB and HDA ground are connected together in the ST12400 drive...

Page 47: ...messages supported by ST12400N ND NC family drives Msg Supported by Code SCSI 1 SCSI 2Message Name 01h 1 Y Y Extended messages 06h Y Y Abort 0Dh Y Y Abort tag 0Ch Y Y Bus device reset 0Eh N Y Clear q...

Page 48: ...tual retry count bytes Y Y Deferred error supported 04h Y Y Format unit 1 07h Y Y Reassign blocks 08h Y Y Read 0Ah Y Y Write 0Bh Y Y Seek 12h Y Y Inquiry Y Y Vital product data page Y Y Unit serial nu...

Page 49: ...ch data equal 32h Y Y Search data low 33h N N Set limits 34h N N Prefetch 35h N N Synchronize cache 36h N N Lock unlock cache 37h Y Y Read defect data 39h N N Compare 3Ah N N Copy and verify 3Bh Y Y W...

Page 50: ...n be changed between these two configurations Default is 02 01 means response data is in SCSI 1 format and has compatability with Common Command Set data 02 means response data is in SCSI 2 format The...

Page 51: ...to a corresponding bit a zero allows no change For example in Table 11 3 2 1a refer to Mode page 01 in the first row entitled CHG These are hex numbers representing the changeable values for Mode page...

Page 52: ...06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mode Sense 63 00 00 08 Data 00 00 00 00 00 00 02 00 MODE PAGE HEADERS AND PARAMETER DATA BYTES Mode Page 00 01 02 03 04 05 06 07 08 09 10 11 12 13...

Page 53: ...00 00 00 00 00 00 80 00 00 00 DEF 03 83 16 00 13 00 0C 00 00 00 26 00 53 02 00 00 01 00 0E 00 16 40 00 00 00 CHG 03 00 00 FF FF FF FF 00 00 FF FF 00 00 00 00 FF FF 00 00 00 00 00 00 00 00 DEF 04 84 16...

Page 54: ...2 13 14 15 16 17 18 19 20 21 22 23 DEF 01 81 06 00 21 30 00 00 FF CHG 01 00 00 EF FF 00 00 00 00 DEF 02 82 0A 80 80 00 0A 00 00 00 00 00 00 CHG 02 00 00 FF FF 00 00 00 00 00 00 00 00 DEF 03 83 16 00 0...

Page 55: ...00 00 00 00 00 00 80 00 00 00 DEF 03 83 16 00 0C 00 06 00 00 00 26 00 54 02 00 00 01 00 0D 00 16 40 00 00 00 CHG 03 00 00 FF FF FF FF 00 00 FF FF 00 00 00 00 FF FF 00 00 00 00 00 00 00 00 DEF 04 84 16...

Page 56: ...Asynchronous Data Transfer Y Y Synchronous Data Transfer Y Y Synchronized locked Spindle Operation Y Y Differential Interface Circuits available Y Y Segmented Caching N N Zero Latency Read Y Y Queue...

Page 57: ...7 550 150 600 162 650 175 700 187 750 200 800 11 5 2 REQ ACK offset The maximum REQ ACK offset supported by the Hawk 2 family is 15 0Fh 11 6 Physical interface Figure 11 6 1 shows the locations of the...

Page 58: ...d ND model drives physical interface 50 pin SCSI I O connector Figure 11 6 1b NC model drive physical interface 80 pin I O and DC power connector Pin 1 SCSI I O Connector J4 Pin 1 DC Power Connector J...

Page 59: ...nnector are listed below but equivalent parts may be used see Table 11 6 1 Table 11 6 1 1 Mating connector parts Type of cable Connector Contacts 20 14 AWG 14 AWG AMP 1 480424 0 AMP 60619 4 Loose Piec...

Page 60: ...s single ended I O driver and receiver circuits shall be 6 metres 19 7 ft when operating at line data transfer rates of 5 Mbytes sec or less and 3 metres 9 85 ft when operating at transfer rates great...

Page 61: ...of two rows of 40 male pins with adjacent pins 50 mils 1 27 mm apart The connector is keyed by virtue of its shape The characteristics of the drive s PCB mounted connector see Figure 11 6 3 1b Recomm...

Page 62: ...e The characteristics of the drive s PCB mounted connector are shown in Figure 11 6 3 1b Recommended PCB or bulkhead mounted connectors are Straight in connector most commonly used Seagate P N 7767870...

Page 63: ...C power drive PCB connector 1 2 3 4 100 2 54 D 010 typ 045 1 14 C 010 B ref A 010 834 010 21 18 min typ 3 051 1 30 16 4 06 100 2 54 025 64 Square Contact 50 places C L 040 1 02 ref 335 010 8 50 001 00...

Page 64: ...0 pin I O and DC power connector 1 52 060 1 32 052 2 70 106 Section X X 7 00 276 12 70 500 57 87 2 278 Y 0 15 M Y M 0 15 M Y M 0 0 15 000 006 62 15 2 447 0 15 005 Housing X X PCB Contacts 0 3 012 M Y...

Page 65: ...ments Nonshielded connector Signal Pin Number Signal Pin Number DB 0 2 GROUND 30 DB 1 4 ATN 32 DB 2 6 GROUND 34 DB 3 8 BSY 36 DB 4 10 ACK 38 DB 5 12 RST 40 DB 6 14 MSG 42 DB 7 16 SEL 44 DB P 18 C D 46...

Page 66: ...0 3 4 DB 0 DB 1 5 6 DB 1 DB 2 7 8 DB 2 DB 3 9 10 DB 3 DB 4 11 12 DB 4 DB 5 13 14 DB 5 DB 6 15 16 DB 6 DB 7 17 18 DB 7 DB P 19 20 DB P DIFFSENS 21 22 GROUND GROUND 23 24 GROUND TERMPWR 25 26 TERMPWR GR...

Page 67: ...9 NC 30 GND 70 NC 31 GND 71 NC 32 GND 72 NC 33 GND 73 5 V 34 5 V GND 74 5 V 35 5 V GND 75 5 V 36 5 V GND 76 SYNC 1 37 LEDC 2 77 MTRON 3 38 DLYDST 4 78 SCSIAO 5 39 SCSIA1 5 79 SCSIA2 5 40 SCSIA3 5 80 N...

Page 68: ...hms between each differential pair All I O circuits are open collector three state drivers See Figure 11 6 4 2 for circuit drawing Differential I O drives are shipped without terminators These drives...

Page 69: ...graph 11 6 2 2 1 4 Source of drive terminator power is an active circuit which has an input source voltage selected by jumper plug TP See Figure 10 1 1 This applies to model ST12400N only 5 Interface...

Page 70: ...ferential interface drives shall have the following output characteristics when measured at the disc drive SCSI connector Low level output voltage 2 0 V maximum at Low level output current 55 milliamp...

Page 71: ...5 Arrangements for connecting terminator power to the terminators must be made by the systems designer As a help drive 5 V power is made available on SCSI bus pin 26 for powering external terminators...

Page 72: ...rated at transfer rates above 5 Mbytes sec The ST12400N provides on board active termination that can be disabled by rmoval of the enable jumper TE see Figure 10 1 1 Note Active terminators are highly...

Page 73: ...Disconnect MSG to Bus Free T10 4 5 6 14 0 68 s Disconnect to Arbitration for Reselect T11 4 5 6 Command Dependent This measures disconnected CMD overhead Target win Arbitration for Reselect T12 4 5 7...

Page 74: ...Next Data Out Byte Access parameter T27 4 5 13 0 12 s Data In Byte Transfer media 2 T28 4 5 12 0 04 s Data Out Byte Transfer media 2 T29 4 5 13 0 04 s Next Data In Byte access media 2 T30 4 5 12 0 12...

Page 75: ...le is black plastic Other panel colors may be special ordered Each panel has a single rectangular green LED indicator lens which when glowing indicates the drive is selected 12 2 Single unit shipping...

Page 76: ...ront panel kit Same as 12 1 but includes all mounting hardware to support field installation 13 2 Installation manual This manual P N 77738480 provides basic information on the care and handling of Wi...

Page 77: ...selected Seagate products while you are on hold Technical support specialists are available to answer questions from 8 00 AM to 5 00 PM PST Monday through Friday Recordings are accessible 24 hours a d...

Page 78: ...457 I SCSI 2 2537 HAWK 1LP Family ST31200 ST31200N ND NC 77767452 I SCSI 2 1258 8 ST3620N NC 77767452 I SCSI 2 651 8 ST31200 Wide ST31200W WD WC 77767461 I SCSI 2 1258 8 ST3620W 77767461 I SCSI 2 HAWK...

Page 79: ...N 5 ST4442E 77765300 ESDI 442 15 Hd 1412 Cyl Family ST4383E 77765300 ESDI 383 13 Hd 1412 Cyl ST4384E 77765300 ESDI 383 15 Hd 1224 Cyl ST4702N 77765336 SCSI 702 ST4385ND ST4702ND 77765366 SCSI 385 702...

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Page 82: ...Publication Number 77767450 Rev E 3 95 Printed in USA Seagate Technology Inc 920 Disc Drive Scotts Valley California 95066 4544 USA...

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