Seagate ST31200N Product Manual Download Page 38 | Manualshive

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Seagate ST31200N Product Manual Download Page 38

30

Product Manual - Hawk 1LP Family SCSI-2 (Volume 1), Rev. A

______________________________________________________________________________________

8.0

Media characteristics

8.1

Media description

The media used on the drive has a diameter of approximately 3.7 inches (95 mm). The aluminum substrate
is coated with a thin film magnetic material, overcoated with a proprietary protective layer for improved durability
and environmental protection.

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Summary of Contents for ST31200N

Page 1: ...ST31200N ND NC Hawk 1LP Family ST3620N NC Product Manual Volume 1...

Page 2: ......

Page 3: ...Hawk 1LP Family ST31200N ND NC ST3620N NC Product Manual Volume 1...

Page 4: ...chnology Inc HawkTM SeaFAXTM SeaFoneTM SeaTDDTM and SeaBOARDTM are trademarks of Seagate Technology Inc Other product names are registered trademarks or trademarks of their own Seagate reserves the ri...

Page 5: ...ii 1 through 68 B PLD 85297 5 18 94 Jim Bently v 14 and 20 Larry Wilcox C PLD 85341 6 16 94 D Ashby v 2 6 11 24 27 28 50 thru 52 D PLD 85489 03 17 95 J Rust J Bentley v 22 23 66 67 and 68 Notice Produ...

Page 6: ...drive command execution time 9 5 2 3 Read data command execution time 9 5 2 4 Write data command execution time 9 5 3 Generalized performance characteristics 10 5 4 Start stop time 11 5 5 Prefetch mu...

Page 7: ...31 9 1 Drive internal defects errors 31 9 2 SCSI systems error considerations 31 10 0 Option configuration headers 32 10 1 Drive ID Option select header 32 10 2 Synchronized spindles interface 35 10 2...

Page 8: ..._____________________________________________________________________ 12 0 Options 64 12 1 Front Panel 64 12 2 Single unit shipping ppack 64 13 0 Accessories 65 13 1 Front panel kit 65 13 2 Installati...

Page 9: ...the Seagate SCSI Interface Manual 77738479 and the ANSI SCSI 2 and SCSI 3 standards The Hawk 1LP Family drives are classified as Intelligent peripherals The Hawk 1LP Family provides Level 2 conformanc...

Page 10: ...J of Part 15 of the FCC Rules and Regulations nor the Radio Interference Regulations of the Canadian Department of Communications However the unit has been tested using proper shielding and grounding...

Page 11: ...within the Head Disc HDA through a nonreplaceable filter to maintain a contamination free head disc environment RefertoFigure3 0 1anexplodedviewofthedrive NEVERdisassembletheHead DiscAssembly HDA This...

Page 12: ...roduct Manual Hawk 1LP Family SCSI 2 Volume 1 Rev A ______________________________________________________________________________________ Figure 3 0 1 Hawk 1LP family drive ST31200N ND PCB ST31200NC...

Page 13: ...utomatic 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 1 1 Interleav...

Page 14: ...are reallocation scheme selected See Mode Select Command and Format Command in the SCSI Interface Product Manual P N 77738479 2 All nine spare sectors are on one track 3 Spare cylinders are on the two...

Page 15: ...the user systems integrator or host equipment manufacturer If the drive is attached to a bus that contains other devices and the new drive is not attached to the end of the bus the Terminator Enable...

Page 16: ...ional 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 additional timing de...

Page 17: ...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 7 42 ms 3 2 Typical Average...

Page 18: ...Sizes 512 byte user data blocks default Variable 256 to 4096 bytes per sector in even number of bytes per sector If n number of bytes per sector is odd then n 1 will be used Synchronous Transfer Rate...

Page 19: ...executed When execution of the first queued command is complete the drive continues the compensation for the remaining head s The above procedure continues until compensationforallheadsiscompleted oru...

Page 20: ...is enabled RCD bit 0 in Mode Page 08h byte 2 bit 0 See SCSI Interface Product Manual data requested by the host with a Read command is retrieved from the buffer if it is there before any disc access i...

Page 21: ...s to get the size in bytes 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 Re...

Page 22: ...ng in a system in synchronized mode can increase the system capacity and transfer rate in a cost effective manner ForHawk1LPmodels the interfaceconsistsofatwistedpaircablethatconnectsthedrivesinthesyn...

Page 23: ...ion 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...

Page 24: ...mplete the I O process or HARDWARE ERROR if 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...

Page 25: ...ee 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 0 Me...

Page 26: ...or 15h is reported 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 se...

Page 27: ...level formatted at the factory and need not be reformatted 6 2 6 Service tools No special tools are required for site installation or recommended for site maintenance Refer to Paragraph 6 2 4 Thedepot...

Page 28: ...n occurs when the Motor Start Option is enabled and the drive has not yet received a Start Motor command 5 See paragraph 7 2 1 Conducted Noise Immunity 6 Peaks of 0 90 A nominal on 12 V will occur for...

Page 29: ...eral I O cables 7 2 3 12 V current profile Figure 7 2 2 1 identifies the drive 5 V and 12 V current profile The current during the various times is as shown T Power is applied to the drive T1 Controll...

Page 30: ...ures above these values may adversely affect the drive s ability to meet specifications The MTBF specification for the drive is based on operating at an ambient temperature of 95 F 35 C Occasional exc...

Page 31: ...w assume that no condensation on the drive occurs a Operating 8 to 80 relative humidity with a maximum gradient of 10 per hour b Non Operating 5 to 95 relative humidity J1 U7 U11 U8 U17 U3 U4 U5 U2 U2...

Page 32: ...may be up or down though the figure shows it down 7 4 4 1 Shock a Operating The drive as installed for normal operation shall operate error free while subjected to intermittent shock not exceeding 10...

Page 33: ...Y X A B A1 B1 A B A1 B1 C D E C1 D1 E1 C1 D1 E1 C D E Product Manual Hawk 1LP Family SCSI 2 Volume 1 Rev A 25 ________________________________________________________________________________________...

Page 34: ...integrated drives The drive 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 Vibrati...

Page 35: ...ing holes three on each side 6 32 UNC Max screw length into side of drive 0 15 in 3 81 mm Screw tightening torque 6 0 in lb 675 NM max with minimum thread engagement of 0 12 in 3 05 mm 2 Mounting hole...

Page 36: ...holes four on bottom 6 32 UNC Max screw length into bottom of drive 0 20 in 5 08 mm Screw tightening torque 6 0 in lb 675 NM max with minimum thread engagement of 0 12 in 3 05 mm 3 Power and interface...

Page 37: ...onsideration 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...

Page 38: ...________________________________ 8 0 Media characteristics 8 1 Media description The media used on the drive has a diameter of approximately 3 7 inches 95 mm The aluminum substrate iscoatedwithathinfi...

Page 39: ...See Format Unit command Section 5 2 1 2 in SCSI Interface Product Manual P N 77738479 Data correction by ECC can be applied to recover data from additional flaws if they occur Details of the SCSI comm...

Page 40: ...Seagate P N 77679052 Figure 10 1 1 ID and option select header for Models ST31200N ND and ST3620N DC Power Connector J2 Drive Front Pin 1 End J6 J5 Pin 1 SCSI I O Connector J1 Pin 1 J2 Pin 1 HDA Drive...

Page 41: ...rom Drive Not Used Not Used Jumper Positions Reserved R E S D S M E W P P E T E T P T P Enable Terminators S S P L E D R E S Reserved CATH 3 4 U5 Optional terminator module installed only at factory O...

Page 42: ...indle 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 command received from host Del...

Page 43: ...e J6 pin 5 is GRD See paragraphs 10 2 5 7 for description of synchronized spindle operation A jumper should be installed whenever no cable is connected Default is jumper installed LED No jumper ever i...

Page 44: ...cal specifications Negated False 0 0 V to 0 4 V I 48 mA max Asserted True 2 24 V to 5 25 V I 250 uA Note 1 This connection available only on the ST31200NC and ST3620NC models Use one or the other but...

Page 45: ...ound 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 ST31200 drive and cannot be sepa...

Page 46: ...200N ND NC family drives Msg Supported by Code SCSI 1 SCSI 2 SCSI 3 Message Name 01h 1 Y Y Extended Messages 06h Y Y Abort 0Dh Y Y Abort tag 0Ch Y Y Bus device reset 0Eh Y Y Clear queue 00h Y Y Comman...

Page 47: ...ter bytes Y Y Actual 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...

Page 48: ...2Ah Y Y Write extended 2Bh Y Y Seek extended 2Eh Y Y Write and verify 2Fh Y Y Verify 30h N N Search data high 31h N N Search data equal 32h N N Search data low 33h N N Set limits 34h N N Pre fetch 35h...

Page 49: ...implemented Hawk 1LP Family drives can be changed between these two configurations Default is 02 01 means response data is in SCSI 1 format and has compatibility with Common Command Set data 02 means...

Page 50: ...Current values and Saved values can be changed by a Mode Select command A one allows a change to a corresponding bit a zero allows no change For example in Table 11 3 2 1 refer to Mode page 01 in the...

Page 51: ...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 MODE PAGE HEADERS AND PARAMETER DATA BYTES Page 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21...

Page 52: ...0 00 00 00 00 00 80 00 00 00 DEF 03 83 16 00 09 00 09 00 00 00 12 00 55 02 00 00 01 00 0D 00 17 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 53: ...3 14 15 16 17 18 19 20 21 22 23 DEF 01 81 06 00 21 30 00 00 FF CHG 01 00 00 FF 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 05 0...

Page 54: ...00 00 00 00 00 80 00 00 00 DEF 03 83 16 00 05 00 05 00 00 00 0A 00 50 02 00 00 01 00 0C 00 15 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 00...

Page 55: ...Y 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 56: ...600 162 650 175 700 187 750 200 800 11 5 2 REQ ACK offset The maximum value supported by the Hawk 1LP Family drives for REQ ACK offset is 15 0Fh 11 6 Physical interface Figure 11 6 1 shows the locati...

Page 57: ...SCSI I O and DC power connector J1 4 3 2 1 Pin 1 2 3 4 Power 12V 12V ret 5V ret 5V Pin 1 SCSI I O Connector J4 Pin 1 DC Power Connector J6 J5 J1 J2 Product Manual Hawk 1LP Family SCSI 2 Volume 1 Rev A...

Page 58: ...terminated Intermediate SCSI devices shall not be terminated see Figure 11 6 3 2 Remove the terminator enable jumperTE on J2 select header not the terminator power source selector jumperTP Figure 10 1...

Page 59: ...twisted pair cable shall be used A minimum conductor size of 28 AWG should be used to minimize noise effects Suggested nonshielded flat cable part numbers are Flat cable 35M 3365 50 Twisted pair Spec...

Page 60: ...m mils apart Recommended PCB or bulkhead mounted connectors are Straight in connector most commonly used Seagate P N 77678703 Amp US P N 2 557103 1 Amp Japan P N 5 175475 9 Right angle to PCB connecto...

Page 61: ...places 26 6 60 Typ 065 1 65 x 45 Chamfer Typ 20 5 08 Typ 60 15 24 42 10 67 Ref No Pos 50 A 3 767 95 68 B 3 697 93 90 C 2 720 69 09 D 2 400 60 96 037 Ref Typ 94 370 010 9 398 Pin 1 Product Manual Hawk...

Page 62: ...of Datum Y 0 50 020 Pin 1 Pin 1 Side View Front View Contacts are recessed along the center strip see side view Top View Back View Insert cable connector here 54 Product Manual Hawk 1LP Family SCSI 2...

Page 63: ...d with the terminator the host having no terminator Figure 11 6 3 2 Interface cabling Table 11 6 3 1a Single ended 50 pin cable pin assignments Nonshielded connector Signal Pin Number Signal Pin Numbe...

Page 64: ...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 GRO...

Page 65: ...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 No...

Page 66: ...aretobeenabled modelST31200N NCandST3620N only when the disc drive is first or last in the daisychain For the models ST31200NC and ST3620NC the host equipment sometimes provides arrangements for termi...

Page 67: ...tial 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 milliamps Hig...

Page 68: ...llation 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 term...

Page 69: ...inator power source selection jumperTP see Figure 10 1 1 does not disconnect the terminator resistors from the circuit Note Active terminators are highly recommended for use in the daisychain as descr...

Page 70: ...5 6 14 0 68 s 0 78 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 3 0 s Arbitration to Rese...

Page 71: ...12 0 10 s 0 14 s Next Data Out Byte Access parameter T27 4 5 13 0 12 s 0 14 s Data In Byte Transfer media 2 T28 4 5 12 0 04 s 0 06 s Data Out Byte Transfer media 2 T29 4 5 13 0 04 s 0 06 s Next Data I...

Page 72: ...lack plastic Other panel colors may be special ordered Each panel has a single rectangular green rectangular LED indicator lens which when glowing indicates the drive is selected 12 2 Single unit ship...

Page 73: ...anel kit Same as 12 1 but includes all mounting hardware to support field installation 13 2 Installation Guide The Installation Guide P N 77767453 provides basic information on the care and handling o...

Page 74: ...nonselectedSeagateproductswhileyou 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 da...

Page 75: ...SI 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 2LP Fam...

Page 76: ...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 D...

Page 77: ......

Page 78: ...Seagate Technology Inc 920 Disc Drive Scotts Valley California 95066 4544 USA Publication Number 77767452 Rev D 03 95...

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