Dual port support | Seagate ST9600104SS, ST9600204SS, ST9450304SS

10.2Dual port support

Savvio SAS drives have two independent ports. These ports may be connected in the same or different 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 6.0 Gb/s.

Subject to buffer availability, the Savvio 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.

Savvio 10K.4 SAS Product Manual, Rev. A

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Seagate ST9600104SS, ST9600204SS, ST9450304SS, ST9450404SS manual Dual port support

Contents

Standard Models Self-Encrypting Drive Models ST9600204SSST9600104SS ST9450404SSST9450304SS Rev. a 12/15/09 Initial release Revision history Contents Installation Defect and error managementAbout self-encrypting drives Interface requirements Seagate Technology support services Savvio 10K.4 SAS Product Manual, Rev. a List of Figures Page Scope Standards Applicable standards and reference documentationElectromagnetic compatibility Electromagnetic susceptibility Electromagnetic compliance for the European Union Electromagnetic complianceAustralian C-Tick Korean KCC European Union Restriction of Hazardous Substances RoHS 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 Prefetch/multi-segmented cache control Cache operationCaching write data Prefetch operation Error rates Reliability specificationsRecoverable Errors Unrecoverable Errors Seek errors Reliability and serviceInterface errors Preventive maintenance 4 S.M.A.R.T Maximum processing delay Fully-enabled delayControlling S.M.A.R.T Performance impact Temperature Log Page 0Dh Parameter Code Description Predictive failuresThermal 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 Product warranty ShippingProduct repair and return information Physical/electrical specifications PowerChoiceTM power managementPowerChoice modes DC power requirements AC power requirements Savvio 10K.4 SAS Product Manual, Rev. a Page Page General DC power requirement notes Power sequencingConducted noise immunity Current profiles for 600GB models Current profiles Current profiles for 450GB models GB models in 3Gb operation Power dissipation 600GB models in 6Gb operation 450GB models in 3Gb operation Temperature a. Operating Environmental limits450GB models in 6Gb operation Relative humidity Effective altitude sea level a. OperatingShock and vibration Shock Recommended mounting Air cleanliness Vibration a. Operating-normalCorrosive environment Acoustics Mounting configuration dimensions Mechanical specifications Admin SP Controlled accessAbout self-encrypting drives Data encryption Random number generator RNG Default passwordDrive locking Data bands Power requirements Authenticated firmware downloadSupported commands Cryptographic erase Defect and error management Drive internal defects/errorsDrive error recovery procedures SAS system errors Background Media Scan Media Pre-ScanDeferred Auto-Reallocation Idle Read After Write 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 Mode Sense data Inquiry dataSavvio inquiry data Page Mode Pages Mode Sense data for ST9600204SS and ST9600104SS drives Mode Sense values for ST9450404SS and ST9450304SS drives Miscellaneous operating features and conditions Miscellaneous featuresMiscellaneous 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 Internet Seagate Technology support servicesPresales Support Technical Support Warranty Service Data Recovery Services Authorized Service CentersData Recovery Services Call Center Toll-free Direct dialFAX Numerics Index KCC Msid Mtbf See also cooling Page Savvio 10K.4 SAS Product Manual, Rev. a Page Seagate Technology LLC