Seagate Barracuda 18XL ST318416N Product Manual Download Page 50

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Barracuda 18XL Product Manual, Rev. A

Figure 7c.

Barracuda 18XL family drive ID select header J5 for W/LW/LWV models (J5 Pins 1–12)

SCSI ID = 8

SCSI ID = 9

SCSI ID = 10

SCSI ID = 11

SCSI ID = 12

SCSI ID = 13

SCSI ID = 14

SCSI ID = 15

A 3 A2 A1

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

A 0

J1-DC Power

68 Pin

SCSI I/O Connector

Pin 1

Drive HDA (rear view, PCBA facing downward)

Pin 1

PCBA

Pin 12

+5V Ground

Host Alternate
Usage Plug

Pins 1, 3, 5, and 7 are
optional connections to
switching circuits in host
equipment to establish
drive ID.

Remote Switches

For ID selection use
jumpers as shown or
connect a cable for
remote switching as
shown below.

Dashed area is optional host circuitry (external to the
drive) connected to host supplied optional usage plug.

[1] Voltage supplied by drive.

Pins 2, 4, 6, and 8 are
normally not grounded.
They are driven low (ground)
for 250 ms after a Reset
or PWR ON to allow drive to
read SCSI ID selected.

A0 A1 A2 A3

11 9

12 10 8 6

[1] +5V

Drive Activity LED

+5V

N.C.

Ground

Summary of Contents for Barracuda 18XL ST318416N

Page 1: ...Barracuda 18XL Family ST318436LW LC LWV LCV ST318426LW LC ST318416N W ST39236LW LC LWV LCV ST39226LW LC ST39216N W Product Manual Volume 1...

Page 2: ......

Page 3: ...Barracuda 18XL Family ST318436LW LC LWV LCV ST318426LW LC ST318416N W ST39236LW LC LWV LCV ST39226LW LC ST39216N W Product Manual Volume 1...

Page 4: ...SeaFONE SeaBOARD and SeaTDD are either trademarks or registered trademarks of Seagate Technology Inc or one of its subsidiaries All other trademarks or registered trademarks are the prop erty of their...

Page 5: ...CSI Interface information in the Volume 2 SCSI Interface Product Manual part number 75789509 If the SCSI Interface information is needed the Volume 2 Interface Manual should be ordered part number 757...

Page 6: ......

Page 7: ...ormat command execution time minutes 9 4 2 3 Generalized 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 d...

Page 8: ...ce requirements 45 9 1 General description 45 9 2 SCSI interface messages supported 45 9 3 SCSI interface commands supported 46 9 3 1 Inquiry Vital Product data 50 9 3 2 Mode Sense data 51 9 4 SCSI bu...

Page 9: ...J6 for N model J6 Pins 1 12 39 Figure 7c Barracuda 18XL family drive ID select header J5 for W LW LWV models J5 Pins 1 12 40 Figure 7d Barracuda 18XL family drive option select header for LW LC LWV L...

Page 10: ......

Page 11: ...2 and Ultra160 are the names Seagate calls these interfaces The SCSI Interface Product Manual part number 75789509 describes general SCSI interface characteristics of this and other families of Seagat...

Page 12: ...2 Barracuda 18XL Product Manual Rev A...

Page 13: ...n properly 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 no...

Page 14: ...ate P N 75789512 SCSI Interface Product Manual Seagate P N 75789509 ANSI small computer system interface SCSI document numbers X3 131 1994 SCSI 2 T10 1302D SPI 3 X3T10 1143D EPI T10 1236D SPC 2 T10 99...

Page 15: ...I 3 inter face specifications to the extent described in this manual volume 1 which defines the product performance characteristics of the Barracuda 18XL family of drives and the SCSI Interface Produc...

Page 16: ...adius of the media to eliminate the pos sibility of destroying or degrading data by landing in the data zone The drive automatically goes to the landing zone when power is removed An automatic shippin...

Page 17: ...ed bit recording ZBR Vertical horizontal or top down mounting Dynamic spindle brake 2 MByte data buffer standard 1 Mbyte on some drives see Table 1 or 4 Mbyte optional Hot plug compatibility Low audib...

Page 18: ...f blocks field A value of FF FF FF FF in the number of blocks field restores the drive capacity to the maximum capacity 3 7 Factory installed accessories OEM Standard drives are shipped with the Barra...

Page 19: ...rounded off values Bytes surface 3 642 3 642 3 642 3 642 3 642 3 642 Mbytes unformatted rounded off values Tracks surface total 14 384 14 384 14 384 14 384 14 384 14 384 Tracks user accessible Tracks...

Page 20: ...pical access times and maximum access times The best comparison is obtained by system benchmark tests conducted under identical conditions Maximum times do not include error recovery 3 Typical Access...

Page 21: ...The buffer can be divided into logical segments 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...

Page 22: ...f the same cache segment overwriting the data that was written there at the beginning of the operation However the drive does not overwrite data that has not yet been written to the medium If write ca...

Page 23: ...t capable 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 opera...

Page 24: ...able 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 drive failures in the perio...

Page 25: ...controlled to safe levels for SE and LVD devices see ANSI SPI 3 The disc drive spindle must come to a complete stop prior to completely removing the drive from the cabinet chassis Use of the Stop Spin...

Page 26: ...keeps track of the number of errors for the current interval This counter is referred to as the Failure Counter Error rate is simply the number of errors per operation The algorithm that S M A R T use...

Page 27: ...king DST 5 2 8 2 3 Check condition Fault conditions are reported using one of two mechanisms The two mechanisms are mutually exclusive a failure reported by a check condition will not update the log a...

Page 28: ...ugh read write read operations The integrity of the media is checked through a read verify scan of the media Motor functionality is tested by default as a part of these tests The extended option perfo...

Page 29: ...Test Progress Indicator STPI bit set 5 2 8 2 8 Abort There are several ways to abort a diagnostic Power on Reset and SCSI Reset are two mechanisms you can use You can also issue a Send Diagnostic com...

Page 30: ...20 Barracuda 18XL Product Manual Rev A...

Page 31: ...gure 3a 4 This condition occurs when the Motor Start Option is enabled and the drive has not yet received a Start Motor command 18 373 GB drives Notes ST318436 ST318426 ST318416 LW LC LVD LWV LCV LVD...

Page 32: ...vice 6 2 1 Conducted noise immunity Noise is specified as a periodic and random distribution of frequencies covering a band from DC to 10 MHz Maximum allowed noise values given below are peak to peak...

Page 33: ...plied to the drive T1 Controller self tests are performed T2 Spindle begins to accelerate under current limiting after performing drive internal diagnostics See Note 1 of Table 2 T3 The heads move fro...

Page 34: ...Manual Rev A s Figure 3b Typical Barracuda 18XL family drive 5 V current profile 0 0 2 4 6 8 10 12 14 16 18 20 0 0 0 2 0 4 0 8 1 0 1 2 0 6 A Seconds 5 Volt Current SCSI SE during spindle start Typical...

Page 35: ...obtain BTUs per hour Typical power dissipation under idle conditions for LVD models is 6 9 Watts 23 54 BTUs per hour Figure 3c DC current and power vs input output operations per second for ST318436 d...

Page 36: ...or the Barracuda electronics and HDA is provided place the drive in its final mechanical configuration perform random write read operations After the temperatures stabilize measure the case temperatur...

Page 37: ...cations of PCBA components listed in Table 3 Model W LW PCBA 1 PCBA 2 J1 HDA Temp Check Point 5 Model LC PCBA 1 PCBA 3 J1 J6 U15 U6 J2 U2 U16 U8 U11 U5 J3 U4 U18 U19 U15 U6 J2 U2 U16 U8 U11 U5 J3 U4 U...

Page 38: ...a Operating normal The drive as installed for normal operation shall operate error free while subjected to intermittent shock not exceeding 15 Gs at a maximum duration of 11 msec half sinewave Shock m...

Page 39: ...ils refer to Seagate specifications 30190 001 under 100 lbs 45 kg or 30191 001 over 100 lbs 45 Kg Figure 5 Recommended mounting Package size Packaged product weight Drop height 600 cu in 9 800 cu cm A...

Page 40: ...he limits of non operating vibration shall apply to all conditions of handling and transportation This includes both isolated drives and integrated drives The drive shall not incur physical damage or...

Page 41: ...0 12 in 3 05 mm Power and interface connectors can extend past the B dimension by 0 040 in 1 02 mm Centerline of pad for Pin 1 of power connector Centerline of pad for Pin 1 of J6 Dimension N is from...

Page 42: ...also the dimension to the end of the drive HDA Dimensions G and S are unique requirements for SCA drives only required for conformance with latest SFF Spec 8337 Centerline of pad for Pin 1 of J6 Maxi...

Page 43: ...e of pad for Pin 1 of J6 Nominal values These cannot be added to any toleranced dimension to achieve a valid toleranced dimension Dimension N is from drive mounting hole to end of drive chasis not to...

Page 44: ...34 Barracuda 18XL Product Manual Rev A...

Page 45: ...s such as are required in video applications For addi tional information on this refer to the Error Recovery Page table in the SCSI Interface Product Manual which describes the Mode Select Mode Sense...

Page 46: ...Recovery Time Limit Note A RTL of zero 0 will use the drive default value of FF FF Minimum RTL is achieved by specifying the RTL set to 00 01 7 3 SCSI systems errors Information on the reporting of o...

Page 47: ...een applied recycle the drive power to make the new settings effective Installation instructions are provided by host system documentation or with any additionally purchased drive installation softwar...

Page 48: ...retain cover 11 9 7 5 3 1 Drive Activity LED 5V 1 Host Alternate Usage Plug Reserved Pins 6 8 4 2 A L E D R E S 3 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...

Page 49: ...ID 1 SCSI ID 2 SCSI ID 3 SCSI ID 4 SCSI ID 5 SCSI ID 6 SCSI ID 7 L E D R E S R E S Reserved Pin 1 Shipped with cover installed Do not install jumpers retain cover 11 9 7 5 3 1 Drive Activity LED Groun...

Page 50: ...12 1P 2P 3P 4P 5V Ground Host Alternate Usage Plug Pins 1 3 5 and 7 are optional connections to switching circuits in host equipment to establish drive ID Remote Switches For ID selection use jumpers...

Page 51: ...otor Start Enable Motor Start Write Protect Parity Disable S E D S M E W P P D R E S R E S T P Jumper Positions Force Single Ended I O 1 Single Ended or Low Voltage Differential Pin 1 J2 J2 Jumper Plu...

Page 52: ...spindle starts when Start Unit command received from host Delayed start feature is overridden and does not apply when ME jumper is installed WP On Entire drive is write protected Off Drive is not wri...

Page 53: ...using the temperature measurement guidelines described in Section 6 4 1 Forced air flow may be required to keep temperatures at or below the specified case temperatures of Table 3 Column 2 in which c...

Page 54: ...5 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 that are availabl...

Page 55: ...drives Notes 1 Extended messages see the SCSI Interface Product Manual part number 75789509 Table 5 SCSI messages supported by Barracuda 18XL family drives Message name Message code Supported by Barra...

Page 56: ...ector format Y DPRY bit supported N DCRT bit supported Y STPF bit supported Y IP bit supported Y DSP bit supported Y IMMED bit supported Y VS vendor specific N Inquiry see Table 7 for Inquiry data 12h...

Page 57: ...B7h Y Read buffer modes 0 2 3 supported 3Ch Y Read capacity 25h Y Read defect data 10 37h Y Read extended 28h Y DPO bit supported Y FUA bit supported Y Read long 3Eh Y Reassign blocks 07h Y Rebuild 8...

Page 58: ...ge 40h Y DST logical unit self test diagnostics Y Set limits 33h N Start unit stop unit spindle ceases rotating 1Bh 1Bh Y Synchronize cache 35h Y Test unit ready 00h Y Verify 2Fh Y DPO bit supported Y...

Page 59: ...ar Table 7 Barracuda 18XL family drive Standard Inquiry data Bytes Data HEX 0 15 00 00 03 1 12 2 8B 00 01 3E 53 45 41 47 41 54 45 20 VENDOR ID 16 31 53 54 33 3 31 3 38 3 34 3 33 3 36 3 4C 3 57 3 20 3...

Page 60: ...length 14 4 23 Product serial number Y Implemented operating definition page 81h 0 Peripheral qualifier peripheral device type 1 Page code number 81 2 Reserved 00 3 Page length 03 4 SAVIMP 0 current o...

Page 61: ...n 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 9a refer to Mode page 01 in the row entitled CHG These are hex numbers r...

Page 62: ...0 36 40 00 00 00 03 DEF 83 16 01 68 00 00 00 02 00 00 01 A1 02 00 00 01 00 36 00 36 40 00 00 00 03 CHG 83 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 SAV 84 16 00 38 30 06...

Page 63: ...0 00 04 SAV 84 16 00 38 30 06 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1C 05 00 00 04 DEF 84 16 00 38 30 06 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1C 05 00 00 04 CHG 84 16 00 00 00 00 00 00 00 00...

Page 64: ...0 00 04 SAV 84 16 00 38 30 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1C 05 00 00 04 DEF 84 16 00 38 30 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1C 05 00 00 04 CHG 84 16 00 00 00 00 00 00 00 00...

Page 65: ...00 04 SAV 84 16 00 38 30 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1C 05 00 00 04 DEF 84 16 00 38 30 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1C 05 00 00 04 CHG 84 16 00 00 00 00 00 00 00 00 0...

Page 66: ...00 04 SAV 84 16 00 38 30 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1C 05 00 00 04 DEF 84 16 00 38 30 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1C 05 00 00 04 CHG 84 16 00 00 00 00 00 00 00 00 0...

Page 67: ...00 04 SAV 84 16 00 38 30 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1C 05 00 00 04 DEF 84 16 00 38 30 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1C 05 00 00 04 CHG 84 16 00 00 00 00 00 00 00 00 0...

Page 68: ...optimized for desktop applications The firmware default condi tion for the PM bit is set to one for Desktop mode During the manufacturing process the Saved value of the PM bit remains set to the firmw...

Page 69: ...and W models only N Adaptive caching Y Adaptive read look ahead Y Arbitrating system Y ASYNC burst rate of 5 Mbytes sec single ended Y Asynchronous data transfer N Asynchronous event notification Y A...

Page 70: ...paring scheme per volume Y Sparing scheme per zone Y Strict bit support Y Sustained transfer rate of 3 Mbytes sec single ended N Sync spindles rotational position offset N Synchronized locked spindle...

Page 71: ...ive physical interface components for the various models of the drive Shown are the locations of the DC power connector the SCSI interface connector and the drive select and option select headers Deta...

Page 72: ...or DC power pin assignments Figure 9b Model LC and LCV drive physical interface 80 pin J1 SCSI I O connector and DC power connector J5 Pin 1 68 Pin SCSI I O Connector Pin 1P J1 DC Power J6 J1 Pin 1 J1...

Page 73: ...rracuda 18XL Product Manual Rev A 63 Figure 9c Models N and W drive physical interface Pin 1 SCSI I O Connector Pin 1 DC Power Connector J6 J1 Pin 1P 2P 3P 4P Power 12V 12V ret 5V ret 5V J1 4P 3P 2P 1...

Page 74: ...the proper impedance in order to operate correctly Intermediate SCSI devices shall not be terminated Models LC and LW have no onboard termina tion circuits Some type of external termination circuits m...

Page 75: ...The 80 pin connector option is intended for use on drives that plug directly into a PCBA or wall bracket mounted connector in the host equipment In such installations all backplane wiring segments are...

Page 76: ...e not intended to sup port a series of drives To insure that both drive connector and host equipment mating connector mate properly both drive connector and host equipment mating connector must meet t...

Page 77: ...ng host adapter initiator The cable length restriction limits the total number of devices allowed 5 SCSI ID7 has highest arbitration priority For LW models priority is ID7 to ID0 then ID15 to ID8 ID 8...

Page 78: ...iator The cable length restriction limits the total number of devices allowed 5 SCSI ID7 has highest arbitration priority ID0 has lowest for N models For W models priority is ID7 to ID0 then ID15 to I...

Page 79: ...8 00 3 650 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...

Page 80: ...12 70 500 2 15 0 10 2 places 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 Contact 0 3 012 M Y M 1 27 05 Typ C L of Datum Y C L of Datum Y 0 50 020 Pin 1 Pin 40...

Page 81: ...Typ 2 03 0 25 3X 1 52 5 08 3X C 1 65X45 Typ 8 50 15 24 6 60 2 10 0 04 Trifurcated Pin 4X R 0 73 0 50 Typ 1 27 4X 1 27 Typ 12 80 13 89 9 27 24 13 17 65 62 23 Ref 77 60 15 24 7 62 2 54 1 45 0 05 10 03 2...

Page 82: ...urn 7 13 14 41 DB1 Signal Return 8 15 16 42 DB2 Signal Return 9 17 18 43 DB3 Signal Return 10 19 20 44 DB4 Signal Return 11 21 22 45 DB5 Signal Return 12 23 24 46 DB6 Signal Return 13 25 26 47 DB7 Sig...

Page 83: ...DB14 DB15 4 7 8 38 DB15 DBP1 5 9 10 39 DBP1 DB0 6 11 12 40 DB0 DB1 7 13 14 41 DB1 DB2 8 15 16 42 DB2 DB3 9 17 18 43 DB3 DB4 10 19 20 44 DB4 DB5 11 21 22 45 DB5 DB6 12 23 24 46 DB6 DB7 13 25 26 47 DB7...

Page 84: ...D 13 53 Signal Return SEL 14 54 Signal Return MSG 15 55 Signal Return RST 16 56 Signal Return ACK 17 57 Signal Return BSY 18 58 Signal Return ATN 19 59 Signal Return DBP 20 60 Signal Return DB7 21 61...

Page 85: ...47 DB11 DB10 8 48 DB10 DB9 9 49 DB9 DB8 10 50 DB8 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 DBP 20 60 DBP DB7 21 61...

Page 86: ...Connector contact number 13 Cable conductor number 12 Connector contact number 13 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 GN...

Page 87: ...13 14 41 DB1 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 1...

Page 88: ...differential devices to detect the presence of a single ended device on the bus Drive will not operate I O bus at Ultra 2 or Ultra160 data rates if this is grounded 9 Signals 4 through 7 are used in p...

Page 89: ...ted emissions and conducted noise on other SCSI bus signals 9 7 1 Single ended drivers receivers For N and W models which use single ended drivers and receivers typical circuits are shown in Figure 12...

Page 90: ...tage differential signals HVD This drive does not support HVD It should never be connected to an HVD bus The SCA 2 80 pin con nector signal pin assignments are shown in Tables 13b and 13d but the elec...

Page 91: ...ntial voltage 0 30 V minimum with common mode voltage ranges 0 700 V Vcm 1 800 V T10 1302D SPI 3 These voltages shall be measured between the output terminal and the SCSI device s logic ground referen...

Page 92: ...and the drive I O connector or on the end of a short I O cable stub extending past the last cable connector ANSI Standard X3T10 1143D contains additional details about SCSI bus terminator and termina...

Page 93: ...isconnect MSG T09 4 5 6 Command Dependent Disconnect MSG to Bus Free T10 4 5 6 14 0 52 s Disconnect to Arbitration for Reselect This measures disconnected CMD overhead T11 4 5 6 Command Dependent Targ...

Page 94: ...e Access Byte 8 of 10 T23 10 8 4 5 4 0 12 s 1 s Next CDB Byte Access Byte 9 of 10 T23 10 9 4 5 4 0 12 s 1 s Next CDB Byte Access Byte 10 of 10 T23 10 10 4 5 4 0 12 s 1 s Data In Byte Transfer paramete...

Page 95: ...tone phone you can obtain technical support information by return FAX 24 hours daily This service is available worldwide Presales Support Our Presales Support staff can help you determine which Seagat...

Page 96: ...rmatica 55 21 516 6649 FAX 55 21 223 3156 e mail sgt_cso gbl com br European Support Services For European customer support dial the toll free number for your specific country for presales support tec...

Page 97: ...ay or send a FAX to 31 20 653 3513 The European call center is located in Amsterdam The Nether lands Asia Pacific Support Services Technical Support Australia 61 2 9725 3366 FAX 61 2 9725 4052 Hong Ko...

Page 98: ...88 Barracuda 18XL Product Manual Rev A...

Page 99: ...ditional information Y 04 01 Drive not ready in spin up mode Y 04 02 Drive not ready waiting for initialization command Y 04 03 Drive not ready human intervention required Y 04 04 Drive not ready form...

Page 100: ...d retries Y 18 02 Data recovered with ECC retries and autoreallocation Y 18 05 Recovered reassignment N 18 07 Recovered data with ECC data rewritten N 19 00 Error in defect list Y 19 01 Defect list no...

Page 101: ...Target operation command changed Y 3F 01 Microcode changed N 3F 02 SCSI 1 SCSI 2 change N 3F 0F Echo buffer overwritten Y 3F 90 Invalid CAP block Y 40 00 Target operating conditions have changed N 40...

Page 102: ...92 Barracuda 18XL Product Manual Rev A...

Page 103: ...ge idle current 21 average latency 7 average rotational latency 9 10 B background processing 7 backward compatibility 5 bits inch 9 buffer 11 12 buffer segment 11 12 buffer full 11 buffer full ratio 1...

Page 104: ...D select jumper connector 37 drive ID option select header 37 drive insertion 15 drive interface connector 66 drive internal 23 drive internal defects and errors 35 drive malfunction 14 drive mounting...

Page 105: ...82 inquiry command 49 inquiry vital product data 50 installation 37 installation guide 4 8 installation instructions 37 instantaneous current peak 21 integrated SCSI controller 7 interface cable lengt...

Page 106: ...8 43 out of plane deflection 44 out of plane distortion 44 output voltage 79 overhead time 10 P package size 29 package test specification 4 packaged 29 parity 42 parity checking 42 parity error 42 pa...

Page 107: ...e data 10 SCSI Interface Product Manual 3 4 5 SCSI systems error 36 SCSI systems error consideration 35 SCSI systems error management 36 SCSI 1 mode 46 SCSI 2 4 SCSI 2 SCSI 3 mode 46 SCSI 3 Fast 20 an...

Page 108: ...6 regulation 3 See also cooling terminated 22 termination 22 active 82 disc drive 82 initiator 82 terminator 42 79 active 82 passive 82 terminator circuit 79 terminator enable jumper TE 67 68 82 termi...

Page 109: ......

Page 110: ...Seagate Technology Inc 920 Disc Drive Scotts Valley California 95066 4544 USA Publication Number 77767535 Rev A Printed in USA...

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