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Seagate ST91000641SS, ST9500621SS, ST9500620SS, ST9500622SS, 100620418 manual Dual port support

Models: ST91000640SS ST91000641SS 100620418 ST91000642SS ST9500622SS ST9500621SS ST9500620SS

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12.2Dual port support

Constellation.2 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 6Gb/s or the first port can run at 6Gb/s while the second port runs at 3Gb/s. The supported link rates are 1.5, 3.0, or 6.0Gb/s.

Subject to buffer availability, the Constellation.2 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.

Constellation.2 SAS Product Manual, Rev. H

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Seagate ST91000641SS, ST9500621SS, ST9500620SS, ST9500622SS, 100620418, ST91000642SS, ST91000640SS manual Dual port support

Contents

ST91000642SS ST9500622SS ST91000640SSST91000641SS ST9500620SSST9500621SSStandard Models Self-Encrypting Drive Models SED Fips 140-2 Models Revision history Contents Installation Defect and error managementAbout Fips About self-encrypting drives Interface requirementsPage Constellation.2 SAS Product Manual, Rev. H List of Figures Constellation.2 SAS Product Manual, Rev. H Seagate Online Support and Services Seagate Technology support services Scope Standards Applicable standards and reference documentationElectromagnetic compatibility Electromagnetic susceptibility Electromagnetic compliance for the European Union Electromagnetic complianceAustralian C-Tick Korean KCC China Restriction of Hazardous Substances RoHS Directive European Union Restriction of Hazardous Substances RoHS Self-Encrypting Drives Reference Manual Reference documents General description Media description Standard features Reliability PerformanceFormatted capacities Programmable drive capacity Factory-installed options Internal drive characteristics Performance characteristicsSeek performance characteristics Access time Start/stop time General performance characteristics Cache operation Prefetch/multi-segmented cache control Prefetch operation Caching write data Error rates Reliability specificationsRecoverable Errors Unrecoverable Errors Seek errors Reliability and serviceInterface errors Preventive maintenance Controlling S.M.A.R.T 4 S.M.A.R.TPerformance impact Reporting control Predictive failures Temperature Log Page 0Dh Parameter Code DescriptionThermal monitor Drive Self Test DST State of the drive prior to testingDST failure definition Implementation Short test Function Code 001b Short and extended testsExtended test Function Code 010b Log page entries Shipping Product warrantyStorage Product repair and return information PowerChoiceTM power management Physical/electrical specificationsPowerChoice modes DC power requirements AC power requirements 1000GB drive Standard & SED model DC power requirements 500GB drive Standard & SED model DC power requirements Power sequencing General DC power requirement notesConducted noise immunity TB model current profiles Current profiles GB model current profiles 1TB model drive in 3Gb operation Power dissipation 1TB model drive in 6Gb operation 500GB model drive in 3Gb operation 500GB model drive in 6Gb operation Environmental limits Temperature a. OperatingRelative humidity Shock and vibration Effective altitude sea level a. OperatingShock Recommended mounting Vibration a. Operating-normal Air cleanlinessAcoustics Corrosive environment See Section Constellation.2 SAS Product Manual, Rev. H Mounting configuration dimensions Mechanical specifications Purpose About FipsValidation Program Seagate Enterprise SED Example of Fips tamper evidence labels Admin SP Controlled accessAbout self-encrypting drives Data encryption Random number generator RNG Authenticated firmware downloadDrive locking Data bands Supported commands Power requirements Drive internal defects/errors Defect and error managementDrive error recovery procedures SAS system errors Media Pre-Scan Background Media ScanDeferred Auto-Reallocation Idle Read After Write Setting and determining the current Type LevelProtection Information PI Levels of PI Identifying a Protection Information drive Drive orientation Installation Air flow Cooling Grounding Drive mounting Interface requirements SAS features Dual port support Supported commands Scsi commands supported Supported commands Supported commands Supported commands Inquiry data Mode Sense dataConstellation.2 inquiry data Page Block Descriptor 00 00 00 00 3a 38 60 30 00 00 00 00 00 00 02 Miscellaneous features Miscellaneous operating features and conditionsMiscellaneous status SAS physical interface Datum B Section C C Section a a Connector requirements Physical characteristicsElectrical description Pin descriptions Power Signal characteristicsSAS transmitters and receivers Ready LED Out LED drive signal SAS-2 Specification ComplianceDifferential signals General interface characteristics Numerics Index KCC Msid Mtbf See also cooling Page Constellation.2 SAS Product Manual, Rev. H Page Americas Seagate Technology LLC