Scope, Cheetah 15K.6 SAS disk drive | Seagate ST3300656SS specification

1.0Scope

This manual describes Seagate Technology® LLC, Cheetah® SAS (Serial Attached SCSI) disk drives.

Cheetah drives support the SAS Protocol specifications to the extent described in this manual. The SAS Inter- face Manual (part number 100293071) describes the general SAS characteristics of Cheetah 15K.6 and other Seagate SAS drives.

Figure 1. Cheetah 15K.6 SAS disk drive

Cheetah 15K.6 SAS Product Manual, Rev. A

1

Image 7

Seagate ST3300656SS, ST3146356SS, ST3450856SS manual Scope, Cheetah 15K.6 SAS disk drive

Contents

ST3450856SS ST3300656SS ST3146356SS Cheetah 15K.6 SASPage Contents Interface requirements Defect and error managementInstallation Seagate Technology support services Cheetah 15K.6 SAS disk drive List of Figures Cheetah 15K.6 SAS Product Manual, Rev. a Cheetah 15K.6 SAS disk drive Scope Cheetah 15K.6 SAS Product Manual, Rev. a Electromagnetic susceptibility Standards, compliance and reference documentsStandards Electromagnetic compatibility European Union Restriction of Hazardous Substances RoHS Compliance Reference documents Cheetah 15K.6 SAS Product Manual, Rev. a General description Media description Standard featuresPerformance Formatted capacities Factory-installed accessoriesOptions factory installed Reliability Cheetah 15K.6 SAS Product Manual, Rev. a Seek time Performance characteristicsInternal drive characteristics Access time General performance characteristics Format command execution time minutesStart/stop time Cache operation Prefetch/multi-segmented cache control Prefetch operation Caching write data Unrecoverable Errors Reliability specificationsError rates Recoverable Errors Preventive maintenance Reliability and serviceSeek errors Interface errors Milliseconds 4 S.M.A.R.TControlling S.M.A.R.T Performance impact Thermal monitor Reporting controlDetermining rate Predictive failures Parameter Code Description Temperature Log Page 0DhPrimary Temperature Reference Temperature Short test Function Code 001b State of the drive prior to testingInvoking DST Short and extended tests Product repair and return information Product warrantyAbort Shipping Cheetah 15K.6 SAS Product Manual, Rev. a ST3450856SS DC power requirements Physical/electrical specificationsAC power requirements DC power requirements ST3146356SS Gbit mode Amps ST3300656SS DC power requirementsST3146356SS DC power requirements ST3300656SS Gbit mode Amps Current profiles General DC power requirement notesPower sequencing Conducted noise immunity Typical ST3450856SS current profiles Typical ST3300656SS current profiles Typical ST3146356SS current profiles ST3450856SS in 3 Gbit operation Power dissipation ST3300656SS in 3 Gbit operation ST3300656SS CURRENT/POWER vs Throughput SAS 3.0GB ST3146356SS in 3 Gbit operation ST3146356SS CURRENT/POWER vs Throughput SAS 3.0GBRandom 8 Block Reads Environmental limits Temperature Shock Relative humidityEffective altitude sea level Shock and vibration Recommended mounting Package size Packaged/product weight Drop height Corrosive environment Air cleanlinessVibration Acoustics Mechanical specifications Physical dimensions Cheetah 15K.6 SAS Product Manual, Rev. a Drive internal defects/errors Defect and error managementDrive error recovery procedures 51.87 Background Media Scan SAS system errorsMedia Pre-Scan Idle Read After Write Deferred Auto-Reallocation Drive orientation Installation Air flow Cooling Grounding Drive mounting Cheetah 15K.6 SAS Product Manual, Rev. a Interface requirements SAS features Dual port support Commands supported by Cheetah 15K.6 SAS family drives Scsi commands supportedCommand name Command code Supported 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 Mode Sense dataBytes Data hex Page Mode Pages 2.1 ST3450856SS Mode Sense data 2.2 ST3300656SS Mode Sense data 2.3 ST3146356SS Mode Sense data Miscellaneous status Miscellaneous operating features and conditionsMiscellaneous features Supported Feature or condition SAS physical interface Datum B Connector requirements Physical characteristics SAS pin descriptions Pin Signal name Signal typeElectrical description Pin descriptions Ready LED Out Signal characteristicsPower SAS transmitters and receivers Eye masks Eye masks overview LED drive signalDifferential signals General interface characteristics Normalized time in UI Receive eye maskJitter tolerance masks Absolute amplitude Frequency in kHz Peak-toSinusoidal Jitter Signal characteristica Units Gbps Transmitter signal characteristics Gbps m, n Deterministic jitterq Receiver signal characteristicsSignal characteristic Units Gbps Maximum allowable jitter Impedance requirements Sheet 1 Impedance specificationsReceiver jitter tolerance Compliant jitter test pattern Cjtpat Impedance requirements Sheet 2 Transmitter characteristicsElectrical TxRx connections = -5,437dB Shows the zero-length test load Receiver characteristics Cheetah 15K.6 SAS Product Manual, Rev. a Technical Support Seagate Technology support servicesInternet Presales Support Data Recovery Services Authorized Service Centers Warranty ServiceData Recovery Services Call Center Toll-free Direct dial Numerics IndexPage SAS See also cooling