Seagate ST336705LW/LC manual Cheetah 36XL Product Manual, Rev. E Standard features, Performance

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Cheetah 36XL Product Manual, Rev. E

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3.1Standard features

The Cheetah 36XL family has the following standard features:

•Integrated Ultra160 SCSI controller

•Multimode SCSI drivers and receivers—single-ended (SE) and low voltage differential (LVD)

•16 bit I/O data bus

•Asynchronous and synchronous data transfer protocol

•Firmware downloadable via SCSI interface

•Selectable even byte sector sizes from 512 to 4,096 bytes/sector

•Programmable sector reallocation scheme

•Flawed sector reallocation at format time

•Programmable auto write and read reallocation

•Reallocation of defects on command (post format)

•Enhanced ECC maximum burst correction length of 240 bits with a guaranteed burst correction length of 233 bits

•Sealed head and disc assembly

•No preventative maintenance or adjustment required

•Dedicated head landing zone

•Embedded servo design

•Self diagnostics performed when power is applied to the drive

•1:1 Interleave

•Zoned bit recording (ZBR)

•Vertical, horizontal, or top down mounting

•Dynamic spindle brake

•4,096 kbyte data buffer

•Hot plug compatibility (Section 9.6.4.2 lists proper host connector needed) for LC model drives

•Drive Self Test (DST)

3.2Media characteristics

The media used on the drive has a diameter of approximately 3.0 inches (76.2 mm). The aluminum substrate is coated with a thin film magnetic material, overcoated with a proprietary protective layer for improved durability and environmental protection.

3.3Performance

•Supports industry standard Ultra160 SCSI interface

•Programmable multi-segmentable cache buffer (see Section 3.1)

•10,022 RPM spindle. Average latency = 2.99 ms

•Command queuing of up to 64 commands

•Background processing of queue

•Supports start and stop commands (spindle stops spinning)

3.4Reliability

•1,200,000 hour MTBF

•LSI circuitry

•Balanced low mass rotary voice coil actuator

•Incorporates industry-standard Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T.)

•5-year warranty

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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-Tick Korean 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 headerDo 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