Seagate ST3450802SS, ST3600002SS manual Start/stop time, Format command execution time minutes

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5.2.2Format command execution time (minutes)

 

ST3600002SS

ST3450802SS

Maximum (with verify)

182

129

Maximum (without verify)

101

68

Execution time measured from receipt of the last byte of the Command Descriptor Block (CDB) to the request for a Status Byte Transfer to the Initiator (excluding connect/disconnect).

When changing sector sizes, the format times shown above may need to be increased by 30 minutes.

5.2.3

General performance characteristics

 

Sustainable disk transfer rate*:

 

Minimum

82 MB/sec

Maximum

150 MB/sec

SAS Interface maximum instantaneous transfer rate

600 MB/sec* per port

Logical block sizes

 

Default is 512-byte data blocks

 

Sector sizes variable to 512, 520, 524, and 528 kbytes.

 

Read/write consecutive sectors on a track

Yes

Flaw reallocation performance impact (for flaws reallocated at format time using

Negligible

the spare sectors per sparing zone reallocation scheme.)

 

*Assumes no errors and no relocated logical blocks. Rate measured from the start of the first logical block transfer to or from the host.

5.3Start/stop time

The drive accepts the commands listed in the SAS Interface Manual less than 3 seconds after DC power has been applied.

If the drive receives a NOTIFY (ENABLE SPINUP) primitive through either port and has not received a START STOP UNIT command with the START bit equal to 0, the drive becomes ready for normal operations within 30 seconds (excluding the error recovery procedure).

If the drive receives a START STOP UNIT command with the START bit equal to 0 before receiving a NOTIFY (ENABLE SPINUP) primitive, the drive waits for a START STOP UNIT command with the START bit equal to 1. After receiving a START STOP UNIT command with the START bit equal to 1, the drive waits for a NOTIFY (ENABLE SPINUP) primitive. After receiving a NOTIFY (ENABLE SPINUP) primitive through either port, the drive becomes ready for normal operations within 30 seconds (excluding the error recovery procedure).

If the drive receives a START STOP UNIT command with the START bit and IMMED bit equal to 1 and does not receive a NOTIFY (ENABLE SPINUP) primitive within 5 seconds, the drive fails the START STOP UNIT command.

The START STOP UNIT command may be used to command the drive to stop the spindle. Stop time is 30 sec- onds (maximum) from removal of DC power.

There is no power control switch on the drive.

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Cheetah NS 10K.2 SAS Product Manual, Rev. F

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Contents Cheetah NS 10K.2 SAS ST3600002SS ST3450802SSPage Contents Interface requirements Defect and error managementInstallation Seagate Technology support services Seagate Online Support and ServicesScope Electromagnetic compatibility Standards, compliance and reference documentsStandards Electromagnetic susceptibilityCompliance Reference documents General description Performance Standard featuresMedia description ReliabilityProgrammable drive capacity Factory-installed optionsFormatted capacities Access time Performance characteristicsInternal drive characteristics Seek performanceStart/stop time Format command execution time minutesGeneral performance characteristics Caching write data Prefetch/multi-segmented cache controlCache operation Prefetch operation Recoverable Errors Reliability specificationsError rates Unrecoverable ErrorsPreventive maintenance Reliability and serviceInterface errors Hot plugging the drivePerformance impact 4 S.M.A.R.TControlling S.M.A.R.T Reporting controlThermal monitor Temperature Log Page 0Dh Parameter Code DescriptionPredictive failures Drive Self Test DSTDST failure definition ImplementationExtended test Function Code 010b Product warrantyShort test Function Code 001b Shipping DC power requirements Physical/electrical specificationsAC power requirements ST3600002SS DC power requirementsST3450802SS DC power requirements General DC power requirement notesCurrent profiles Power sequencingConducted noise immunity Typical ST3600002SS drive +5V and +12V current profiles ST3450802SS Power dissipationST3600002SS Temperature a. Operating Environmental limitsShock and vibration Relative humidityEffective altitude sea level a. Operating ShockRecommended mounting Acoustics Air cleanlinessVibration a. Operating-normal Corrosive environmentChina Restriction of Hazardous Substances RoHS Directive Mechanical specifications Physical dimensionsDrive error recovery procedures Defect and error managementDrive internal defects/errors 77.81 Media Pre-Scan SAS system errorsBackground Media Scan Deferred Auto-ReallocationIdle Read After Write Installation Drive orientationCooling Air flowDrive mounting GroundingSAS features Interface requirementsDual port support Scsi commands supported Commands supported by Cheetah NS 10K.2 SAS family drivesCommands supported by Cheetah NS 10K.2 SAS family drives Commands supported by Cheetah NS 10K.2 SAS family drives Commands supported by Cheetah NS 10K.2 SAS family drives Inquiry data 10.3.2Mode Sense dataPage 10.3.2.1 ST3600002SS Mode Sense data Mode Pages10.3.2.2 ST3450802SS Mode Sense data Miscellaneous status Miscellaneous operating features and conditionsMiscellaneous features SAS physical interface Datum B Physical characteristics Connector requirementsSAS pin descriptions Electrical descriptionPin descriptions SAS transmitters and receivers Signal characteristicsPower Ready LED OutGeneral interface characteristics LED drive signalDifferential signals 10.5.2.1 Eye masks 10.5.2.1.1 Eye masks overviewReceive eye mask 2OP 0, 5 xadditional sinusoidal jitter X 1OP Transmitter signal characteristics Receiver signal characteristics Maximum allowable jitterCompliant jitter test pattern Cjtpat Impedance requirements Sheet 1Impedance requirements Sheet 2 Electrical TxRx connections= -5, 437dB Shows the zero-length test load Additional information SAS-2 Specification complianceReceiver characteristics Cheetah NS 10K.2 SAS Product Manual, Rev. F Index Page SAS See also cooling Page Seagate Technology LLC Americas
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