Seagate ST39205LW/LC, ST318405LW/LC Interface requirements, Scsi interface messages supported

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Cheetah 36XL Product Manual, Rev. E

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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 Cheetah 36XL. No attempt is made to describe all of the minute details of conditions and constraints that must be considered 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 Cheetah 36XL family drives.

Table 4: SCSI messages supported by Cheetah 36XL 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	Y

Wide data transfer request	[1]	Y

Notes.

[1]Extended messages (see the SCSI Interface Product Manual, part number 75789509).

[2]Supports all options except qas_req and iu_req.

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Contents Cheetah 36XL Family ST336705LW/LC ST318405LW/LC ST39205LW/LC Page Cheetah 36XL Family ST336705LW/LC ST318405LW/LC ST39205LW/LC Page Revision Date Writer/Engineer Sheets Affected Revision status summary sheetPage Contents Interface requirements Defect and error managementInstallation Seagate Technology support servicesCheetah 36XL Product Manual, Rev. E Vii List of FiguresPage Cheetah 36XL family drive ST336705LC shown ScopeCheetah 36XL Product Manual, Rev. E Applicable standards and reference documentation Korean MIC Australian C-TickTaiwanese Bsmi General description Cheetah 36XL family drive Reliability Cheetah 36XL Product Manual, Rev. E Standard featuresMedia characteristics PerformanceProgrammable drive capacity Factory installed accessoriesOptions factory installed Formatted capacitiesPerformance characteristics Start/stop time Ultra2 Scsi Ultra160 ScsiPrefetch/multi-segmented cache control Caching write data Cache operationPrefetch operation Cheetah 36XL Product Manual, Rev. E Cheetah 36XL Product Manual, Rev. E 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 Cheetah 36XL Product Manual, Rev. E AC power requirements Physical/electrical specificationsDC power requirements Conducted noise immunity Power sequencing3 12 V Current profile Typical ST336705 drive +12 V current profile Typical ST39205 drive +12 V current profile TypicalST318405 drive +5 V current profile Power dissipation ST336705 Os per Second Cheetah 36XL Product Manual, Rev. E ST318405ST39205 TemperatureEnvironmental limits Shock Relative humidityEffective altitude sea level Shock and vibrationPackage size Packaged/product weight Drop height Recommended mounting Vibration Air cleanlinessAcoustics LW mounting configuration dimensions LC mounting configuration dimensions 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 J5 jumper header on LW model only J2 option select header Does not apply to LC models Cheetah 36XL Product Manual, Rev. E Function descriptionGrounding Drive orientationCooling Drive mountingScsi interface messages supported Interface requirementsScsi interface commands supported Cheetah 36XL Product Manual, Rev. E Commands supported by Cheetah 36XL family drive Inquiry Vital Product data Mode Sense dataCheetah 36XL Product Manual, Rev. E Mode Sense Data Cheetah 36XL Product Manual, Rev. E Mode sense data, ST318405 values Bytes Cheetah 36XL Product Manual, Rev. E Mode sense data, ST39205 values Bytes Cheetah 36XL Product Manual, Rev. E Condition/features supported 2 REQ/ACK offset DC cable and connectorPhysical interface Pin Power Scsi interface cable requirements Scsi interface physical descriptionST336705LC, ST318405LC and ST39205LC Mating connectorsMating connectors for LW model drives Mating connectors for LC model drivesScsi ID Right-angle to Pcba connectorsNonshielded 68 pin Scsi device connector used on LW drives Nonshielded 80 pin Scsi SCA-2 connector, used on LC drives GND +DBP1 Charge 68Cheetah 36XL Product Manual, Rev. E Electrical description Multimode signalsMultimode-SE and LVD alternatives Input characteristics Output characteristicsLC drives General cable characteristicsTerminator requirements Terminator power LW drives Low voltage differential I/O circuitsDisc drive Scsi timing Drive activity remote LED signal status Cheetah 36XL Product Manual, Rev. E Technical 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 Cheetah 36XL Product Manual, Rev. E Index Symbols Cheetah 36XL Product Manual, Rev. E LED PCB System chassis Page