Seagate ST336807FC manual Reliability specifications, Error rates, Recoverable Errors

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5.0Reliability specifications

The following reliability specifications assume correct host and drive operational interface, including all inter- face timings, power supply voltages, environmental requirements and drive mounting constraints

Seek error rate	Less than 10 errors in 108 seeks
Read Error Rates1
Recovered Data	Less than 10 errors in 1012 bits transferred (OEM default settings)
Unrecovered Data	Less than 1 sector in 1015 bits transferred
Miscorrected Data	Less than 1 sector in 1021 bits transferred
Interface error rate	Less than 1 error in 1012 bits transferred with minimum receive eye
	Less than 1 error in 1014 bits transferred with typical receive eye
	(see Section 9.6.4, "Differential PECL input." on page 68)
AFR	0.62%
Service life	5 years
Preventive maintenance	None required

1.Error rate specified with automatic retries and data correction with ECC enabled and all flaws reallocated.

5.1Error rates

The error rates stated in this manual assume the following:

•The drive is operated in accordance with this manual using DC power as defined in paragraph 6.2, "DC power requirements."

•Errors caused by host system failures are excluded from error rate computations.

•Assume random data.

•Default OEM error recovery settings are applied. This includes AWRE, ARRE, full read retries, full write retries and full retry time.

5.1.1Recoverable Errors

Recovereable errors are those detected and corrected by the drive, and do not require user intervention.

Recoverable Data errors will use correction, although ECC on-the-fly is not considered for purposes of recov- ered error specifications.

Recovered Data error rate is determined using read bits transferred for recoverable errors occurring during a read, and using write bits transferred for recoverable errors occurring during a write.

Cheetah 10K.7 36GB FC Product Manual, Rev. A

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Contents Cheetah 10K.7 FC Page Cheetah 10K.7 FC Page Revision Date Sheets Affected Revision status summary sheetRev. a 05/04/05 All. Initial release Page Contents Defect and error management Physical/electrical specificationsInstallation Interface requirementsSeagate Technology support services Viii Cheetah 10K.7 36GB FC Product Manual, Rev. a Cheetah 10K.7 FC family disc drive List of FiguresCheetah 10K.7 36GB FC Product Manual, Rev. a Cheetah 10K.7 FC family disc drive ScopeCheetah 10K.7 36GB FC Product Manual, Rev. a Standards Applicable standards and reference documentationElectromagnetic compatibility Electromagnetic susceptibilityEuropean Union Restriction of Hazardous Substances RoHS Electromagnetic complianceFibre Channel Interface Manual Reference documentsCheetah 10K.7 36GB FC Product Manual, Rev. a General description Media description Standard featuresReliability PerformanceFormatted capacities Programmable drive capacityUser-installed accessories Factory-installed accessoriesFactory-installed options ST336807FC Performance characteristicsInternal drive characteristics Access time Seek performance characteristicsFormat command execution time in minutes Generalized performance characteristicsCache operation Start/stop timePrefetch/multi-segmented cache control Caching write data Prefetch operation Cheetah 10K.7 36GB FC Product Manual, Rev. a Recoverable Errors Reliability specificationsError rates Reliability and service Controlling S.M.A.R.T Hot plugging the drive4 S.M.A.R.T Milliseconds Performance impactReporting control Determining rateDrive Self Test DST Temperature Log page 0DhParameter Code Description DST 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 ShippingAC power requirements Physical/electrical specificationsDC power requirements ST336807FC DC power requirementsConducted noise immunity General DC power requirement notesPower sequencing Typical ST336807FC drive, 2 Gbit, +5V current profile Typical ST336807FC drive, 2 Gbit, +12V current profileST336807FC Power dissipationEnvironmental limits TemperatureRelative humidity Effective altitude sea levelShock Package size Packaged/product weight Drop heightShock and vibration Recommended mounting Corrosive environment Air cleanlinessVibration Acoustics Mechanical specificationsMounting configuration dimensions Drive error recovery procedures Defect and error managementDrive internal defects/errors 77.7 Media Pre-Scan FC-AL system errorsBackground Media Scan Cheetah 10K.7 36GB FC Product Manual, Rev. a Drive ID/option selection InstallationPhysical interface Drive Front LED connectionsCooling 1 J6 connector requirementsDrive orientation Grounding Drive mountingFibre Channel link service frames FC-AL featuresLink services supported Type of frame Link serviceFibre Channel Scsi FCP task management functions Fibre Channel task management functionsFibre Channel task management responses FC Scsi FCP response codesBytes Fibre Channel port loginNPort login Plogi payload NPort Login Accept ACC payload Fibre Channel port login acceptFibre Channel Process Login Process Login Plri payloadProcess Login Accept ACC payload Fibre Channel Process Login AcceptFibre Channel fabric login Fabric Login Flogi payloadFabric Login Accept ACC payload Fibre Channel fabric accept loginFibre Channel Arbitrated Loop options Dual port supportFC-AL options supported Option SupportedCommand code Supported Command name Scsi commands supportedSupported commands Supported commands Supported commands Supported commands Supported commands Inquiry data Mode Sense dataCheetah 10K.7 FC inquiry data Bytes Data hexPage DEF CHG Miscellaneous features Miscellaneous operating features and conditionsSupported Feature or condition Miscellaneous statusPhysical description Physical characteristicsFC-AL physical interface Part description Positions Part number Features Connector requirementsElectrical description J6 connector dimensionsFC-SCA pin descriptions Pin Signal name Signal typePin descriptions FC-AL transmitters and receivers PowerFault LED Out Normal command activity LED status Enable port bypass signalsActive LED Out Active LED Out conditionsParallel Enclosure Services Interface ESI Motor start control signalsMotor start controls 11 SEL6 through SEL0 ID linesHex Dec SettingArbitrated loop physical address Alpa values Signal characteristics LED drive signal LED driver signalsDifferential Pecl output characteristics Differential Pecl input characteristicsLink rate GHz Eye diagram data valuesCheetah 10K.7 36GB FC Product Manual, Rev. a Internet MySeagate Reseller.seagate.com Seagate Technology support servicesPresales Support Technical SupportData Recovery Services Warranty ServiceData Recovery Services Authorized Service Centers Toll-free support numbers FAX services-All Europe toll callCall center Presales and Technical Support Warranty Service Asia/Pacific support services Publication feedback survey Cheetah 10K.7 36GB FC Product Manual, Rev. a Numerics IndexFAN Flogi PBC Page See also cooling