Seagate ST3450657SS, ST3300457SS, ST3600857SS manual Dual port support, Scsi commands supported

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12.2Dual port support

Cheetah 15K.7 SAS drives have two independent ports. These ports may be connected in the same or differ- ent SCSI domains. Each drive port has a unique SAS address.

The two ports have the capability of independent port clocking (e.g. both ports can run at 6Gbit/sec or the first port can run at 6Gbit/sec while the second port runs at 3Gbit/sec.) The supported link rates are 1.5, 3.0, or 6.0 Gbits/sec.

Subject to buffer availability, the Cheetah 15K.7 drives support:

•Concurrent port transfers—The drive supports receiving COMMAND, TASK management transfers on both ports at the same time.

Full duplex—The drive supports sending XFER_RDY, DATA and RESPONSE transfers while receiving frames on both ports.

12.3SCSI commands supported

Table 20 lists the SCSI commands supported by Cheetah 15K.7 drives.

Table 20: Commands supported by Cheetah 15K.6 SAS family drives

Command name	Command code	Supported

Change Definition	40h	N

Compare	39h	N

Copy	18h	N

Copy and Verify	3Ah	N

Format Unit [1]	04h	Y

DPRY bit supported		N

DCRT bit supported		Y

STPF bit supported		Y

IP bit supported		Y

DSP bit supported		Y

IMMED bit supported		Y

VS (vendor specific)		N

Inquiry	12h	Y

Date Code page (C1h)		Y

Device Behavior page (C3h)		Y

Firmware Numbers page (C0h)		Y

Implemented Operating Def page (81h)		Y

Jumper Settings page (C2h)		Y

Supported Vital Product Data page (00h)		Y

Unit Serial Number page (80h)		Y

Lock-unlock cache	36h	N

Log Select	4Ch	Y

PCR bit		Y

DU bit		N

DS bit		Y

46	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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