Seagate ST3450657SS, ST3300457SS manual Start/stop time, Format command execution time minutes

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5.2.2Format command execution time (minutes)

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

	600GB	450GB	300GB
Maximum (with verify)	119	90	58
Maximum (without verify)	60	45	29

Note. There is approximately a 1.5 increase in time to format a SED drive versus a non-SED drive of the same capacity.

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).

5.2.3	General performance characteristics
Sustainable disk transfer rate*:
Minimum		122	Mbytes/sec (typical)
Maximum		204	Mbytes/sec (typical)
SAS Interface maximum instantaneous transfer rate		600	Mbytes/sec* per port
Logical block sizes
Default is 512-byte data blocks
Sector sizes variable to 512, 520, 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.)
Average rotational latency		2.0 msec
*Assumes system ability to support the rates listed and no cable loss.
1 MB/sec = 1,000,000 bytes/sec

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 20 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 20 seconds (excluding the error recovery procedure).

10	Cheetah 15K.7 SAS Product Manual, Rev. D

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Contents ST3600857SS ST3450657SSST3300457SS Standard models Self-Encrypting Drive modelsPage Contents Defect and error management InstallationAbout Fips About self-encrypting drives Interface requirementsPower Cheetah 15K.7 SAS Product Manual, Rev. D Seagate Technology support services Seagate Online Support and ServicesScope Standards, compliance and reference documents StandardsElectromagnetic compatibility Electromagnetic susceptibilityCompliance European Union Restriction of Hazardous Substances RoHSReference documents General description Media description Standard featuresPerformance Factory-installed options ReliabilityFormatted capacities Programmable drive capacityPerformance characteristics Internal drive characteristicsAccess time Seek timeGeneral performance characteristics Format command execution time minutesStart/stop time Prefetch/multi-segmented cache control Cache operationCaching write data Prefetch operationReliability specifications Error ratesRecoverable Errors Unrecoverable ErrorsReliability and service Seek errorsInterface errors Preventive maintenance4 S.M.A.R.T Controlling S.M.A.R.TPerformance impact MillisecondsReporting control Determining ratePredictive failures Thermal monitorTemperature Log Page 0Dh Parameter Code Description State of the drive prior to testingDrive Self Test DST DST failure definitionInvoking DST Short and extended testsShort test Function Code 001b Extended test Function Code 010bProduct warranty AbortShipping Product repair and return informationAC power requirements Physical/electrical specificationsDC power requirements 600 GB DC power requirements Gbit mode Amps450 GB DC power requirements 300 GB DC power requirements Conducted noise immunity Power sequencingCurrent profiles Typical 600GB current profiles Typical 300GB current profiles Power dissipation 450GB model Temperature a. Operating Environmental limitsRelative humidity Effective altitude sea level a. OperatingShock and vibration ShockPackage size Packaged/product weight Drop height Vibration a. Operating-normal Recommended mountingAir cleanliness AcousticsCorrosive environment RoHS compliance statementMechanical specifications Units of Measure mm inchesPurpose About FipsLevel 2 security Controlled access Admin SPAbout self-encrypting drives Data encryptionAuthenticated firmware download Random number generator RNGDrive locking Data bandsPower requirements Supported commandsDrive internal defects/errors Defect and error managementDrive error recovery procedures Page SAS system errors Background Media ScanDeferred Auto-Reallocation Media Pre-ScanIdle Read After Write Drive orientation InstallationCooling Drive mounting GroundingSAS features Interface requirementsCommands supported by Cheetah 15K.6 SAS family drives Scsi commands supportedDual port support Commands supported by Cheetah 15K.6 SAS family drives Commands supported by Cheetah 15K.6 SAS family drives Commands supported by Cheetah 15K.6 SAS family drives Inquiry data Cheetah 15K.7 inquiry data Bytes Data hexMode Sense data 12.3.2.1 600GBmodel Mode Sense data Mode PagesDEF CHG 12.3.2.2 450GB model Mode Sense data Mode Data Header Block Descriptor Mode PagesDEF CHG Read Capacity Data Buffer C D E F 12.3.2.3 300GB model Mode Sense data Mode PagesMiscellaneous operating features and conditions Miscellaneous featuresMiscellaneous status SAS physical interfaceDatum B Physical characteristics Connector requirementsPin descriptions Electrical descriptionSAS pin descriptions Signal characteristics PowerSAS transmitters and receivers Ready LED OutSAS-2 Specification compliance LED drive signalDifferential signals General interface characteristicsCheetah 15K.7 SAS Product Manual, Rev. D Index NumericsPage SAS Smart

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