Seagate ST318405LW/LC, ST39205LW/LC, ST336705LW/LC manual Cheetah 36XL Product Manual, Rev. E

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56	Cheetah 36XL Product Manual, Rev. E

mode), the SCSI firmware is performance 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 firmware default condition (one) for drives with the LW interface. Drives man- ufactured with all other interfaces (LC) set the Saved value of the PM bit set to the Server mode (zero).

[3]When the Performance Mode bit (Page 0, Byte 2, Bit 7) is set to Server mode (zero), the Number of Cache Segments should be set to three (03h). When the Performance Mode bit (Page 0, Byte 2, Bit 7) is set to Desktop mode (one), the Number of Cache Segments should be set to sixteen (10h).

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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 status summary sheet Revision Date Writer/Engineer Sheets AffectedPage Contents Seagate Technology support services Defect and error managementInstallation Interface requirementsList of Figures Cheetah 36XL Product Manual, Rev. E ViiPage Scope Cheetah 36XL family drive ST336705LC shownCheetah 36XL Product Manual, Rev. E Applicable standards and reference documentation Australian C-Tick Korean MICTaiwanese Bsmi General description Cheetah 36XL family drive Performance Cheetah 36XL Product Manual, Rev. E Standard featuresMedia characteristics ReliabilityFormatted capacities Factory installed accessoriesOptions factory installed Programmable drive capacityPerformance characteristics Ultra2 Scsi Ultra160 Scsi Start/stop timePrefetch/multi-segmented cache control Cache operation Caching write dataPrefetch operation Cheetah 36XL Product Manual, Rev. E Cheetah 36XL Product Manual, Rev. E Reliability specifications Service life Reliability and servicePreventive maintenance Service philosophy7 S.M.A.R.T Controlling S.M.A.R.TDetermining rate Performance impactReporting control Predictive failuresImplementation State of the drive prior to testingDST Failure Definition Invoking DSTExtended test Function Code 010b Product warrantyShort test Function Code 001b Log page entriesProduct repair and return information Cheetah 36XL Product Manual, Rev. E Physical/electrical specifications AC power requirementsDC power requirements Power sequencing Conducted noise immunity3 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 Cheetah 36XL Product Manual, Rev. E ST318405 Os per SecondTemperature ST39205Environmental limits Shock and vibration Relative humidityEffective altitude sea level ShockPackage size Packaged/product weight Drop height Recommended mounting Air cleanliness VibrationAcoustics LW mounting configuration dimensions LC mounting configuration dimensions Defect and error management Drive error recovery proceduresDrive internal defects Scsi systems errors Formatting InstallationConfigure drive options Drive ID/option select headerDo not install jumpers retain cover J5 jumper header on LW model only J2 option select header Cheetah 36XL Product Manual, Rev. E Function description Does not apply to LC modelsDrive mounting Drive orientationCooling GroundingInterface requirements Scsi interface messages supportedScsi interface commands supported Cheetah 36XL Product Manual, Rev. E Commands supported by Cheetah 36XL family drive Mode Sense data Inquiry Vital Product 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 DC cable and connector 2 REQ/ACK offsetPhysical interface Pin Power Scsi interface physical description Scsi interface cable requirementsMating connectors for LC model drives Mating connectorsMating connectors for LW model drives ST336705LC, ST318405LC and ST39205LCRight-angle to Pcba connectors Scsi IDNonshielded 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 signals Electrical descriptionMultimode-SE and LVD alternatives Output characteristics Input characteristicsLow voltage differential I/O circuits General cable characteristicsTerminator requirements Terminator power LW drives LC drivesDisc drive Scsi timing Drive activity remote LED signal status Cheetah 36XL Product Manual, Rev. E Presales Support Seagate Technology support services Online ServicesAutomated Services Technical SupportCustomer Service CSO USA/Canada/Latin America Support ServicesEuropean Support Services Africa/Middle East Support Services Asia/Pacific 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