Media characteristics, Performance | Seagate ST336705LW/LC specification

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

Image 17

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

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 requirements Cheetah 36XL Product Manual, Rev. E Vii List of FiguresPage Cheetah 36XL family drive ST336705LC shown Scope Cheetah 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 Reliability Options factory installed Factory installed accessoriesFormatted capacities Programmable drive capacity Performance characteristics Prefetch/multi-segmented cache control Ultra2 Scsi Ultra160 ScsiStart/stop time Caching write data Cache operation Prefetch operation Cheetah 36XL Product Manual, Rev. E Cheetah 36XL Product Manual, Rev. E Reliability specifications Preventive maintenance Reliability and serviceService life Service philosophy Controlling S.M.A.R.T 7 S.M.A.R.T Reporting control Performance impactDetermining rate Predictive failures DST Failure Definition State of the drive prior to testingImplementation Invoking DST Short test Function Code 001b Product warrantyExtended test Function Code 010b Log page entries Product 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 ST318405 Environmental limits TemperatureST39205 Effective altitude sea level Relative humidityShock and vibration Shock Package 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 description Cooling Drive orientationDrive mounting Grounding Scsi interface messages supported Interface requirements Scsi interface commands supported Cheetah 36XL Product Manual, Rev. E Commands supported by Cheetah 36XL family drive Inquiry Vital Product data Mode Sense data Cheetah 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 description Mating connectors for LW model drives Mating connectorsMating connectors for LC model drives ST336705LC, ST318405LC and ST39205LC Scsi ID Right-angle to Pcba connectors Nonshielded 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 characteristics Terminator requirements Terminator power LW drives General cable characteristicsLow voltage differential I/O circuits LC drives Disc 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 Support European 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