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Barracuda 9 Product Manual, Rev. C

Contents

Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2.0

Applicable standards and reference documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1

Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1.1

Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1.2

Electromagnetic susceptibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.2

Electromagnetic compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.3

Reference documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.0

General description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.1

Standard features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.2

Media characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.3

Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.4

Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.5

Unformatted and formatted capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.6

Programmable drive capacity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.7

Factory installed accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.8

Options (factory installed). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.9

Accessories (user installed) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.0

Performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.1

Internal drive characteristics (transparent to user) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.2

SCSI seek performance characteristics (visible to user) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2.1

Access time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.2.2

Format command execution time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.2.3

General performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.3

Start/stop time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.4

Prefetch/multi-segmented cache control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.5

Cache operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.5.1

Caching write data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.5.2

Prefetch operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.0

Reliability specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.1

Error rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1.1

Environmental interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.1.2

Read errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.1.3

Write errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.1.4

Seek errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.2

Reliability and service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2.1

Mean time between failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.2.2

Preventive maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.2.3

Service life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.2.4

Service philosophy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.2.5

Service tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.2.6

Hot plugging Barracuda 9 disc drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.2.7

S.M.A.R.T. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.2.8

Product warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

6.0

Physical/electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6.1

AC power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6.2

DC power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.2.1

Conducted noise immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.2.2

Power sequencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.2.3

12 V current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.3

Power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

6.4

Environmental limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.4.1

Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

6.4.2

Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Содержание ST19171DC

Страница 1: ...Barracuda 9 Disc Drive ST19171N W WD WC DC Product Manual Volume 1...

Страница 2: ......

Страница 3: ...Barracuda 9 Disc Drive ST19171N W WD WC DC Product Manual Volume 1...

Страница 4: ...arracuda SeaFAX SeaFONE SeaNET SeaTDD and SeaBOARD are either trademarks or registered trademarks of Seagate Technology Inc or one of its subsidiaries All other trademarks or registered trademarks are...

Страница 5: ...38479 If you need SCSI interface information order the volume 2 SCSI Interface Product Manual part number 77738479 Revision Date Writer Engineer Sheets Affected Rev A 12 06 96 D Ashby G Olson All Rev...

Страница 6: ......

Страница 7: ...Format command execution time 9 4 2 3 General performance characteristics 9 4 3 Start stop time 11 4 4 Prefetch multi segmented cache control 11 4 5 Cache operation 11 4 5 1 Caching write data 12 4 5...

Страница 8: ...9 0 Interface requirements 43 9 1 General description 43 9 2 SCSI interface messages supported 43 9 3 SCSI interface commands supported 44 9 3 1 Inquiry data 47 9 3 2 Mode Sense data 47 9 4 SCSI bus...

Страница 9: ...ion select jumper connectors 36 Figure 10 ST19171W WD option select jumper connectors 37 Figure 11 ST19171WC DC option select jumper connectors 38 Figure 12 Suggested air flow 41 Figure 13 Physical in...

Страница 10: ......

Страница 11: ...st 20 interface specifications to the extent described in this manual The SCSI Inter face Product Manual part number 77738479 describes general SCSI interface characteristics of this and other familie...

Страница 12: ......

Страница 13: ...operly packaged However it is the user s responsibility to assure that the drive meets the appropriate EMI requirements in their system Shielded I O cables may be required if the enclosure does not pr...

Страница 14: ...part number 83329020 SCSI Interface Product Manual Volume 2 Seagate part number 77738479 ANSI small computer system interface SCSI document numbers X3 131 1994 SCSI 2 X3T10 855D rev 15a SPI X3T10 107...

Страница 15: ...the host from the necessity of knowing the physical characteristics of the targets logical block addressing is used The head and disc assembly HDA is sealed at the factory Air circulates within the HD...

Страница 16: ...defects on command post format 128 bit Reed Solomon error correction code for header and data fields Sealed head and disc assembly HDA No preventative maintenance or adjustment required Dedicated las...

Страница 17: ...sary equipment may modify the data block size before issuing a format command and obtain different formatted capacities than those listed User available capacity depends on spare real location scheme...

Страница 18: ...ide maximum protection against transit damage Units shipped individually require additional protection as provided by the single unit shipping pack Specify this option if you are planning to ship sing...

Страница 19: ...Drive capacity 11 7 Gbyte unformatted 1 Read write heads 20 Bytes track 102 000 Bytes average unformatted 1 Bytes surface 585 Mbytes unformatted Tracks surface total 5 274 Tracks user accessible Track...

Страница 20: ...time for head switch 512 byte sectors in sequential mode 0 8 msec Overhead time for one track cylinder switch in sequential mode 1 2 msec typical Average rotational latency 4 17 msec Notes for Section...

Страница 21: ...2 048 Kbyte buffer space option approximately 1 915 Kbytes can be used as a cache The cache can be divided into logical segments Mode Select page 08h byte 13 from which data is read and to which data...

Страница 22: ...uffer or 1 915 392 bytes if you have the 2 048 kbyte buffer option by the number of segments to calculate the segment size The default is three segments 4 5 1 Caching write data When the WCE Write Cac...

Страница 23: ...ad look ahead is enabled enabled by DRA 0 it operates under the control of ARLA Adaptive Read Look Ahead If the host uses software interleave ARLA enables prefetch of contiguous blocks from the disk w...

Страница 24: ......

Страница 25: ...of being detected from the error or fault status provided through the drive or SCSI interface or is not capable of being recovered by normal drive or system recovery procedures without operator interv...

Страница 26: ...ve the values shown in Table 3 column 2 may degrade product reliability The following expression defines MTBF Estimated power on operating hours in the period MTBF per measurement period Number of dri...

Страница 27: ...ly switch the power to the electronics and mechanics of the drive with the bus contacts if the power distribution system is able to maintain adequate power stability to other devices during the transi...

Страница 28: ...ber of errors and the interval If the number of errors exceeds the threshold before the interval expires then the error rate is considered to be unacceptable If the number of errors does not exceed th...

Страница 29: ...purchase additional boxes Seagate recommends shipping by an air ride carrier experienced in handling computer equipment Product repair and return information Seagate customer service centers are the...

Страница 30: ......

Страница 31: ...ed a Start Motor command 5 See Section 6 2 1 Conducted Noise Immunity Specified voltage tolerance is inclusive of ripple noise and transient response 6 At power up the motor current regulator limits t...

Страница 32: ...he drive does not require power sequencing The drive protects against inadvertent writing during power up and down Daisy chain operation requires that power be maintained on the terminated device to e...

Страница 33: ...ure is 82 F 28 C 6 4 1 Temperature a Operating With cooling designed to maintain the case temperatures of Table 3 column 2 the drive meets all specifica tions over a 41 F to 113 F 5 C to 50 C drive am...

Страница 34: ...atures Notes 1 Section 8 3 1 describes the air flow patterns used when generating the 1 million hours MTBF guide lines in column 2 Air flow was opposite that shown in Section 8 3 1 Local air velocity...

Страница 35: ...Figure 4a Location of PCB components listed in Table 3 2 1 4 3 2 4 3 1 ST19171N Drives DYKX ST19171WD Drives FYJX ST19171WC Drives HYJX ST19171DC Drives XYJX ST19171W Drives GYJX 2 4 3 1 3 2 4 1 2 3...

Страница 36: ...Figure 4b Location of PCB components listed in Table 3 2 1 4 3 2 4 3 1 ST19171N Drives ABAJ ST19171WD Drives CBAJ ST19171WC Drives DBAJ ST19171DC Drives EBAJ ST19171W Drives BBAJ 2 4 3 1 3 2 4 1 2 3...

Страница 37: ...shown in Figure 5 and in accordance with the restrictions of Section 8 4 Orientation of the side nearest the LED may be up or down 6 4 4 1 Shock a Operating normal The drive as installed for normal op...

Страница 38: ...h the complete specified performance while sub jected to continuous vibration not exceeding 5 400 Hz 0 5 g X Y or Z axis b Operating abnormal Equipment as installed for normal operation does not incur...

Страница 39: ...g and transportation This includes both isolated drives and integrated drives The drive does not incur physical damage or degraded performance as a result of continuous vibration not exceeding 5 22 Hz...

Страница 40: ...0 8 64 4 83 0 381 43 69 104 14 3 63 6 60 0 76 10 28 57 53 A B C D E F G H J K L M N P R S T U V W X 0 010 0 010 0 020 0 020 0 010 0 005 0 010 0 010 0 010 0 020 0 015 0 015 0 010 0 010 0 010 max 25 25...

Страница 41: ...8 38 25 25 25 max B U 7 7 V J2 J6 LED X W 6 8 8 Mounting 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...

Страница 42: ...05 mm Mounting holes four on bottom 6 32 UNC Max screw length into bottom 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 Inter...

Страница 43: ...ands the details of which are described in the SCSI Interface Product Manual The drive implements selectable error recovery time limits such as are required in video applications For addi tional infor...

Страница 44: ...Message Protocol System is described in the SCSI Interface Product Manual Several of the messages are used in the SCSI systems error management system The Request Sense command returns information to...

Страница 45: ...bus the Terminator Enable jumper TE should be removed from the new drive Note For additional information about terminator requirements refer to Sections 9 8 and 9 9 Set all appropriate option jumpers...

Страница 46: ...ed pins are shipped with a cover installed Do not install jumpers on these pins Retain the cover unless you install a 20 pin plug Delay Motor Start Enable Motor Start Write Protect Disable SCSI Parity...

Страница 47: ...pin plug Delay Motor Start Enable Motor Start Write Protect Disable SCSI Parity Term Power from Drive default Term Power to SCSI Bus Term Power from SCSI Bus position A T E D S M E W P P D R E S T P 2...

Страница 48: ...WC DC J2 J2 Pin 1 Drive Front J6 Pin 1 Pin 2 Reserved 5 5 3 J2 Jumper enlarged to show detail SCSI ID 0 default SCSI ID 1 SCSI ID 2 SCSI ID 3 SCSI ID 4 SCSI ID 5 SCSI ID 6 SCSI ID 7 SCSI ID 8 SCSI ID...

Страница 49: ...ost through that connector Notes for Table 5 a Use either J6 or J1 Aux but not both b I O connector J1 plugs directly into host No jumper can be installed on J1 The host supplies the logic state of th...

Страница 50: ...s not write protected Default PD Applies to all models On SCSI parity checking and parity error reporting by the drive is disabled Off Drive checks for parity and reports the results of parity checkin...

Страница 51: ...sc assembly HDA You should confirm that adequate cooling is provided using the temperature measure ment guidelines described below The drive should be oriented or air flow directed so that the least a...

Страница 52: ...3 5 inch to 5 26 inch adapter frame verify with Seagate Tech nology that the drive can meet the shock and vibration specifications given herein while mounted in such an adapter frame Adapter frames t...

Страница 53: ...nded message refer to the SCSI Interface Product Manual part number 77738479 2 Not applicable to N models Table 6 SCSI messages supported by Barracuda 9 family drives Message Name Message Code Support...

Страница 54: ...om index Y Physical sector format Y DPRY bit supported Y DCRT bit supported Y STPF bit supported Y IP bit supported Y DSP bit supported Y IMMED bit supported Y VS vendor specific bit N Inquiry 12h Y D...

Страница 55: ...34h N Read 08h Y Read buffer modes 0 2 3 supported 3Ch Y Read capacity 25h Y Read defect data 37h Y Read extended 28h Y DPO bit supported Y FUA bit supported Y Read long 3Eh Y Reassign blocks 07h Y R...

Страница 56: ...ostics pages 00h Y Translate page 40h Y Set limits 33h N Start unit stop unit start stop spindle 1Bh Y Synchronize cache 35h Y Test unit ready 00h Y Verify 2Fh Y DPO bit supported Y BYTCHK bit support...

Страница 57: ...e Standard Inquiry data shown in Table 8 the initiator can request several Vital Product Data pages by setting the Inquiry command EVPD bit to one The SCSI Interface Product Manual part number 7773847...

Страница 58: ...and 07 are not changeable because those fields are all zeros If some changeable code had a hex value EF that equates to the binary pattern 1110 1111 If there is a zero in any bit position in the field...

Страница 59: ...00 00 00 SAV 03 83 16 00 78 00 60 00 00 00 00 00 A8 02 00 00 01 00 14 00 32 40 00 00 00 DEF 03 83 16 00 78 00 60 00 00 00 00 00 A8 02 00 00 01 00 14 00 32 40 00 00 00 CHG 03 83 16 00 00 FF FF 00 00 00...

Страница 60: ...2 megabyte cache 04 da 04 da SAV 1A 9A 0A 00 00 00 00 00 01 00 00 00 04 DEF 1A 9A 0A 00 00 00 00 00 01 00 00 00 04 CHG 1A 9A 0A 00 03 00 00 00 00 00 00 00 00 SAV 1C 9C 0A 00 04 00 00 00 00 00 00 00 01...

Страница 61: ...Y Contingent allegiance condition Y Capacity programming Y Deferred error handling Y Differential interface circuits available Y Disconnect reconnect Y Flag and link bits in control byte supported Y...

Страница 62: ...istics are given in sections following while the SCSI operational aspects of Seagate drive interfaces are provided in the SCSI Interface Product Manual part num ber 77738479 This section describes the...

Страница 63: ...arracuda 9 Product Manual Rev C 53 Figure 13 Physical interface for N model drives J2 J6 Pin 1 SCSI I O Connector Pin 1 DC Power Connector J1 J1 Pin 1P 2P 3P 4P Power 12V 12V ret 5V ret 5V 4P 3P 2P 1P...

Страница 64: ...power pin assignments Figure 15 Physical interface for WC and DC model drives 80 pin J1 SCSI I O and DC power connector J6 J2 J1 Auxiliary Pin 1A 68 Pin SCSI I O Connector Pin 1P J1 DC Power J1 Pin 1...

Страница 65: ...ulkhead connec tors should be used A single drive connected with a cable to a host 80 pin I O connector is not recommended 9 6 3 SCSI interface cable requirements A characteristic impedance as listed...

Страница 66: ...allowed with drives having differential I O driver and receiver circuits is 25 meters 82 feet Twisted pair cable either twisted flat or discreet wire twisted pairs should be used with differ ential I...

Страница 67: ...le is not recommended The length and size of the host equip ment DC power carrying conductors from the DC power source to the host equipment 80 pin disc drive inter face connector should be strictly d...

Страница 68: ...ves Recommended mating 80 position PCB mount connectors For additional information call Amp FAX service at 1 800 522 6752 Straight in vertical connector Hot plug version with ground guide pin Seagate...

Страница 69: ...7 has highest arbitration priority ID 0 has lowest for N models For W models priority is ID 7 to ID 0 then ID 15 to ID 8 ID 8 very lowest 6 Last drive on daisy chain 7 Open end type 68 pin connector u...

Страница 70: ...1 18 Min Typ 3 051 1 30 16 4 06 100 2 54 025 64 Sq Contact 50 Places C L 040 1 02 Ref 335 010 8 50 001 002 Dia 083 2 1 Trifurcated Pin 4 places 26 6 60 Typ 065 1 65 x 45 Chamfer Typ 20 5 08 Typ 60 15...

Страница 71: ...92 71 840 005 21 34 315 010 8 00 001 002 dia 083 2 1 Trifurcated Pins 4 places 085 2 16 x 45 chamfer typ 20 5 08 typ 60 15 24 100 2 54 Pos 1 Pos 2 1 2 3 4 1 816 46 13 Position 1 Pos 68 Pos 35 1 650 4...

Страница 72: ...6 2 70 Section X X 276 7 00 500 12 70 085 0 004 2 places 2 278 57 87 Y 0 006 M Y M 0 006 M Y M 000 006 0 0 15 2 447 62 15 006 0 15 Housing X X Contact 012 0 3 M Y M 05 1 27 Typ C L of Datum Y C L of D...

Страница 73: ...ector contact number 11 Cable conductor number 12 Connector contact number 11 Signal name 1 GND 1 1 2 2 DB0 GND 3 3 4 4 DB1 GND 5 5 6 6 DB2 GND 7 7 8 8 DB3 GND 9 9 10 10 DB4 GND 11 11 12 12 DB5 GND 13...

Страница 74: ...B1 GND 8 15 16 42 DB2 GND 9 17 18 43 DB3 GND 10 19 20 44 DB4 GND 11 21 22 45 DB5 GND 12 23 24 46 DB6 GND 13 25 26 47 DB7 GND 14 27 28 48 DBP GND 15 29 30 49 GND GND 16 31 32 50 GND TERMPWR 17 33 34 51...

Страница 75: ...DB15 4 7 8 38 DB15 DBP1 5 9 10 39 DBP1 GND 6 11 12 40 GND DB0 7 13 14 41 DB0 DB1 8 15 16 42 DB1 DB2 9 17 18 43 DB2 DB3 10 19 20 44 DB3 DB4 11 21 22 45 DB4 DB5 12 23 24 46 DB5 DB6 13 25 26 47 DB6 DB7 1...

Страница 76: ...8 DB11 7 47 GND DB10 8 48 GND DB9 9 49 GND DB8 10 50 GND I O 11 51 GND REQ 12 52 GND C D 13 53 GND SEL 14 54 GND MSG 15 55 GND RST 16 56 GND ACK 17 57 GND BSY 18 58 GND ATN 19 59 GND DBP 20 60 GND DB...

Страница 77: ...3 DB9 13 9 49 DB9 13 DB8 13 10 50 DB8 13 I O 11 51 I O REQ 12 52 REQ C D 13 53 C D SEL 14 54 SEL MSG 15 55 MSG RST 16 56 RST ACK 17 57 ACK BSY 18 58 BSY ATN 19 59 ATN DBP0 20 60 DBP0 DB7 21 61 DB7 DB6...

Страница 78: ...This and 3 above are mutually exclusive options 7 Binary code on A3 A2 A1 and A0 asserted by host to set up SCSI bus ID in drive 8 GND provides a means for differential devices to detect the presence...

Страница 79: ...iver and receiver circuits are shown in Figure 20 Use terminator circuits only where the disc drive is first or last in the daisy chain See Note 1 following Figure 20 Transmitter characteristics Singl...

Страница 80: ...t the disc drive s SCSI connector Low level output voltage 2 0 V maximum at low level output current 55 milliamps High level output voltage 3 0 V minimum at high level output current 55 milliamps Diff...

Страница 81: ...igner As a help drive 5 V power is made available on SCSI bus N W ND and WD models for power ing external terminators if the drive option select header jumper TP Figures 9 and 10 is installed in right...

Страница 82: ...s required 9 9 Terminator power ST19171N and ST19171W drives You can configure terminator power in four different ways See Section 8 1 for illustrations that show how to place jumpers enabling each of...

Страница 83: ...ommand dependent Reselect identify MSG to data media T16 4 5 11 Command dependent Data to status T17 4 5 15 Command dependent Status to command complete MSG T18 4 5 5 8 15 1 0 s max Command complete M...

Страница 84: ...art number 77738479 Section 4 5 The specific timing values that apply to this drive are listed in Table 12 Data in byte transfer parameter T24 4 5 12 0 04 s max Data out byte transfer parameter T25 4...

Страница 85: ...te com You can also send E mail with your questions to DiscSupport Seagate com or TapeSupport Seagate com Seagate CompuServe forum Online technical support for Seagate products is available on CompuSe...

Страница 86: ...488 7528 Taiwan 886 2 715 2923 USA 408 944 9120 Location Phone number Australia 61 2 9725 3366 9 00 A M to 5 00 P M M F England 44 1628 894083 10 00 A M to 1 00 P M 2 00 P M to 5 00 P M M F France 33...

Страница 87: ...its 56 cable connectors 55 part numbers 57 cable requirements 55 cabling 59 cache buffer 7 cache control prefetch multi segmented 11 cache operation 11 cache statistics page 44 caching parameters page...

Страница 88: ...ist 33 drive reset 39 drive select headers 52 drive volume 35 drivers receivers 6 differential 70 single ended 69 DS bit command 44 DSP bit 44 DU bit 44 E EFT defect list 33 electrical description 69...

Страница 89: ...n 55 interface messages 43 interface requirements 43 interface signals differential 69 single ended 69 interleave 6 9 intermediate condition met good status 51 intermediate good status 51 internal dat...

Страница 90: ...ector format 44 physical specifications 21 pin assignments single ended signal contact 63 single ended wide cable 64 wide differential P cable 65 wide single connector differential 67 wide single conn...

Страница 91: ...k 9 seek command 46 seek errors 15 16 seek extended command 46 segmented caching 51 self diagnostics 6 Self Monitoring Analysis and Reporting Technology See S M A R T send diagnostics page 46 service...

Страница 92: ...error 15 unrecoverable write errors 15 V verify command 46 verify error counter page 44 verify error recovery page 45 vibration 27 28 vital product data page 47 VS vendor specific bit 44 W warranty 1...

Страница 93: ......

Страница 94: ...Seagate Technology Inc 920 Disc Drive Scotts Valley California 95066 4544 USA Publication Number 83329030 Rev C Printed in USA...

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