Seagate ST336705LW/LC, ST318405LW/LC Cheetah 36XL Product Manual, Rev. E Function description

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Cheetah 36XL Product Manual, Rev. E

43

8.1.2Function description

J2
jumper
installation		Jumper function description
SE
On		Forces drive to use single-ended I/O drivers/receivers only.
Off		Drive can operate on the interface in low voltage differential mode or single-ended, depend-
		ing on the voltage state of the I/O “DIFFSNS” line. Default is SE jumper not installed.
DS	ME
Off	Off	Spindle starts immediately after power up - Default setting.
Off	On	Drive spindle does not start until Start Unit command received from host.
On	Off	Spindle Startup is delayed by SCSI ID times 12 seconds after power is applied, i.e., drive 0
		spindle 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. 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 write protected. Default is WP jumper not installed.
PD
On		Parity checking and parity error reporting by the drive is disabled.
Off		Drive checks for parity and reports result of parity checking to host.
		Default is PD jumper not installed.
RES
Off		Reserved jumper position. Default is no RES jumper installed.
TP1		(Does not apply to LC models)
Off		The drive does not supply terminator power to external terminators or to the SCSI bus I/O
		cable.
On		Drive supplies power to SCSI bus I/O cable. When drives have differential I/O circuits, a
		jumper on the TP1 position may be needed to power external terminators (see system docu-
		mentation). These drives do not have terminator circuits on the drive.

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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 Installation Defect and error managementSeagate Technology support services Interface requirementsCheetah 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 Taiwanese Bsmi Australian C-TickKorean MIC General description Cheetah 36XL family drive Media characteristics Cheetah 36XL Product Manual, Rev. E Standard featuresPerformance ReliabilityOptions factory installed Factory installed accessoriesFormatted capacities Programmable drive capacityPerformance characteristics Prefetch/multi-segmented cache control Ultra2 Scsi Ultra160 ScsiStart/stop time Caching write data Cache operationPrefetch operation Cheetah 36XL Product Manual, Rev. E Cheetah 36XL Product Manual, Rev. E Reliability specifications Preventive maintenance Reliability and serviceService life Service philosophyControlling S.M.A.R.T 7 S.M.A.R.TReporting control Performance impactDetermining rate Predictive failuresDST Failure Definition State of the drive prior to testingImplementation Invoking DSTShort test Function Code 001b Product warrantyExtended test Function Code 010b Log page entriesProduct repair and return information Cheetah 36XL Product Manual, Rev. E DC power requirements Physical/electrical specificationsAC power requirements 3 12 V Current profile Power sequencingConducted noise immunity 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 ST318405Environmental limits TemperatureST39205 Effective altitude sea level Relative humidityShock and vibration ShockPackage size Packaged/product weight Drop height Recommended mounting Acoustics Air cleanlinessVibration LW mounting configuration dimensions LC mounting configuration dimensions Drive internal defects Defect and error managementDrive error recovery procedures Scsi systems errors Configure drive options InstallationFormatting Drive ID/option select header Do 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 descriptionCooling Drive orientationDrive mounting GroundingScsi 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 Physical interface DC cable and connector2 REQ/ACK offset Pin Power Scsi interface cable requirements Scsi interface physical descriptionMating connectors for LW model drives Mating connectorsMating connectors for LC model drives ST336705LC, ST318405LC and ST39205LCScsi 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 Multimode-SE and LVD alternatives Multimode signalsElectrical description Input characteristics Output characteristicsTerminator requirements Terminator power LW drives General cable characteristicsLow voltage differential I/O circuits LC drivesDisc drive Scsi timing Drive activity remote LED signal status Cheetah 36XL Product Manual, Rev. E Automated Services Seagate Technology support services Online ServicesPresales Support Technical SupportEuropean Support Services Customer Service CSOUSA/Canada/Latin America Support Services Call Center Toll-free Direct dial Africa/Middle East Support ServicesAsia/Pacific Support Services Cheetah 36XL Product Manual, Rev. E Index Symbols Cheetah 36XL Product Manual, Rev. E LED PCB System chassis Page