Seagate ST336918N, ST318418N, ST318438LW Interface requirements, Scsi interface messages supported

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Barracuda 36ES2 Product Manual, Rev. B

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9.0Interface requirements

This section partially describes the interface requirements as implemented on the drives.

9.1General description

This section describes in essentially general terms the interface requirements supported by the Barracuda 36ES2. No attempt is made to describe all of the minute details of conditions and constraints that must be con- sidered by designers when designing a system in which this family of drives can properly operate. Seagate declares that the drives operate in accordance with the appropriate ANSI Standards referenced in various places herein, with exceptions as noted herein or in the Seagate SCSI Interface Product Manual, part number 75789509.

9.2SCSI interface messages supported

Table 4 lists the messages supported by the SCSI-2 and SCSI-3 modes of the Barracuda 36ES2 family drives.

Table 4: SCSI messages supported by Barracuda 36ES2 family drives

 

 

Supported by

Message name

Message code

SCSI-2/3

 

 

 

 

 

 

Abort

06h

Y

 

 

 

Abort-tag

0Dh

Y

 

 

 

Bus device reset

0Ch

Y

 

 

 

Clear ACA

16h

N

 

 

 

Clear queue

0Eh

Y

 

 

 

Command complete

00h

Y

 

 

 

Continue I/O process

12h

Y

 

 

 

Disconnect

04h

Y

 

 

 

Extended messages

01h[1]

Y

 

 

 

Identify

80h-FFh

Y

 

 

 

Ignore wide residue (two bytes)

23h

Y

 

 

 

Initiate recovery

0Fh

N

 

 

 

Initiator detected error

05h

Y

 

 

 

Linked command complete

0Ah

Y

 

 

 

Linked command complete with flag

0Bh

Y

 

 

 

Message parity error

09h

Y

 

 

 

Message reject

07h

Y

 

 

 

Modify data pointer

[1]

N

 

 

 

No operation

08h

Y

 

 

 

Parallel Protocol Request

[1] [2]

Y

 

 

 

Queue tag messages (two bytes)

 

 

 

 

 

ACA

24h

N

 

 

 

Head of queue tag

21h

Y

 

 

 

Ordered queue tag

22h

Y

 

 

 

Simple queue tag

20h

Y

 

 

 

Release recovery

10h

N

 

 

 

Restore pointers

03h

Y

 

 

 

Save data pointer

02h

Y

 

 

 

Synchronous data transfer req.

[1]

Y

 

 

 

Target transfer disable

13h

Y

 

 

 

Terminate I/O process

11h

N

 

 

 

Wide data transfer request

[1]

Y

 

 

 

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Contents Product Manual, Volume Page Product Manual, Volume Page Revision Date Writer/Engineer Sheets Affected Revision status summary sheetPage Contents Interface requirements Defect and error managementInstallation Seagate Technology support servicesBarracuda 36ES2 Product Manual, Rev. B Vii List of FiguresPage Barracuda 36ES2 family drive ST336938LW shown ScopeBarracuda 36ES2 Product Manual, Rev. B Applicable standards and reference documentation Korean MIC Australian C-TickTaiwanese Bsmi General description Reliability Standard featuresMedia characteristics PerformanceOptions factory installed Factory installed accessoriesProgrammable drive capacity Performance characteristics Start/stop time Ultra2 Scsi Ultra160 ScsiPrefetch/multi-segmented cache control Caching write data Cache operationPrefetch operation Barracuda 36ES2 Product Manual, Rev. B Reliability specifications Service philosophy Reliability and servicePreventive maintenance Service lifeControlling S.M.A.R.T 7 S.M.A.R.TPredictive failures Performance impactReporting control Determining rateInvoking DST State of the drive prior to testingDST Failure Definition ImplementationLog page entries Product warrantyShort test Function Code 001b Extended test Function Code 010bProduct repair and return information Barracuda 36ES2 Product Manual, Rev. B AC power requirements Physical/electrical specificationsDC power requirements Conducted noise immunity Power sequencing3 12 V Current profile +5 Volt Current during spindle start Typical Amper es Amps Power dissipation ST336938/ST318438 Barracuda 36ES2 Product Manual, Rev. B ST336918/ST318418 Environmental limits TemperatureShock Barracuda 36ES2 Product Manual, Rev. B Relative humidityEffective altitude sea level Shock and vibrationRecommended mounting Barracuda 36ES2 Product Manual, Rev. B Vibration Air cleanlinessAcoustics Dimension Table Mechanical specificationsMounting configuration dimensions Barracuda 36ES2 Product Manual, Rev. B Drive error recovery procedures Defect and error managementDrive internal defects Scsi systems errors Drive ID/option select header InstallationConfigure drive options FormattingDo not install jumpers retain cover J6 jumper header for N model J5 jumper header on LW models only J2 option select header for LW models Barracuda 36ES2 Product Manual, Rev. B Barracuda 36ES2 Product Manual, Rev. B Function description Cooling Drive orientationAir flow Grounding Barracuda 36ES2 Product Manual, Rev. B Drive mountingBarracuda 36ES2 Product Manual, Rev. B Scsi interface messages supported Interface requirementsScsi interface commands supported Commands supported by Barracuda 36ES2 family drives Barracuda 36ES2 Product Manual, Rev. B Vendor ID Firmware numbers page C0h Inquiry Vital Product dataUnit serial number page 80h Implemented operating definition page 81hJumper settings page C2h Mode Sense data DEF CHG Barracuda 36ES2 Product Manual, Rev. B Condition/features supported Supported Status supported 2 REQ/ACK offset DC cable and connectorPhysical interface Model drive physical interface 50-pin Scsi I/O connector Pin Power Scsi interface cable requirements Scsi interface physical descriptionMating connectors for N model drives Barracuda 36ES2 Product Manual, Rev. B Mating connectorsScsi daisy chain interface cabling for N drives Nonshielded 68 pin Scsi device connector used on LW drives Scsi daisy chain interface cabling for LW drives GND GND DBP1 +DBP1 Electrical description Multimode signalsMultimode-SE and LVD alternatives LVD output signals Input characteristicsSingle-ended drivers/receivers for LW models Transmitter characteristicsReceiver characteristics Single-ended drivers/receivers for N modelsLow voltage differential I/O circuits General cable characteristicsTerminator requirements Terminator power DrivesLW drives Page Following table provides drive activity LED status Drive activity LEDTechnical Support Seagate Technology support services Online ServicesAutomated Services Presales SupportUSA/Canada/Latin America Support Services Customer Service CSOEuropean Support Services Asia/Pacific Support Services Africa/Middle East Support ServicesCall Center Toll-free Direct dial Barracuda 36ES2 Product Manual, Rev. B Index Diffsens LED PCB System chassis Barracuda 36ES2 Product Manual, Rev. B