Seagate ST3450856FC manual Reliability specifications, Error rates, Recoverable Errors

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Less than 10 errors in 1012 bits transferred (OEM default settings) Less than 1 sector in 1016 bits transferred
Less than 1 sector in 1021 bits transferred
Less than 1 error in 1012 bits transferred with minimum receive eye. Less than 1 error in 1014 bits transferred with typical receive eye. See Section 9.6.4, "FC Differential input." on page 76
0.55%
None required

5.0Reliability specifications

The following reliability specifications assume correct host and drive operational interface, including all inter- face timings, power supply voltages, environmental requirements and drive mounting constraints.

Seek error rate:Less than 10 errors in 108 seeks

Read Error Rates

Recovered Data

Unrecovered Data

Miscorrected Data

Interface error rate:

Annualized Failure Rate (AFR):

Preventive maintenance:

5.1Error rates

The error rates stated in this manual assume the following:

•The drive is operated in accordance with this manual using DC power as defined in paragraph 6.2, "DC power requirements."

•Errors caused by host system failures are excluded from error rate computations.

•Assume random data.

•Default OEM error recovery settings are applied. This includes AWRE, ARRE, full read retries, full write retries and full retry time.

•Error rate specified with automatic retries and data correction with ECC enabled and all flaws reallocated.

5.1.1Recoverable Errors

Recovereable errors are those detected and corrected by the drive, and do not require user intervention.

Recoverable Data errors use retries and correction. Application of ECC on-the-fly correction alone is not con- sidered a Recovered Data error.

Recovered Data error rate is determined using read bits transferred for recoverable errors occurring during a read, and using write bits transferred for recoverable errors occurring during a write.

5.1.2Unrecoverable Errors

Unrecoverable Data Errors (Sense Key = 03h) are specified at less than 1 sector in error per 1016 bits trans- ferred. Unrecoverable Data Errors resulting from the same cause are treated as 1 error for that block.

Cheetah 15K.6 FC Product Manual, Rev. D

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Contents ST3450856FC ST3300656FCST3146356FC Page Contents Defect and error management Physical/electrical specificationsInstallation Interface requirementsSeagate Technology support services Cheetah 15K.6 FC Product Manual, Rev. D Model Number Full Disk Encryption FDE ScopeCheetah 15K.6 FC Product Manual, Rev. D Standards Applicable standards and reference documentationElectromagnetic compatibility Electromagnetic susceptibilityEuropean Union Restriction of Hazardous Substances RoHS Ncits TR-20 Reference documentsCheetah 15K.6 FC Product Manual, Rev. D General description Standard features Performance Media descriptionReliability Formatted capacitiesUser-installed accessories Factory-installed optionsInternal drive characteristics Performance characteristicsSeek performance characteristics Access timeGeneral performance characteristics Format command execution time minutesStart/stop time 176 144 100Prefetch/multi-segmented cache control Cache operationCaching write data Prefetch operation Error rates Reliability specificationsRecoverable Errors Unrecoverable ErrorsSeek errors Reliability and serviceInterface errors Preventive maintenanceControlling S.M.A.R.T 4 S.M.A.R.TPerformance impact MillisecondsDetermining rate Temperature Log Page 0DhPredictive failures Thermal monitorDrive Self Test DST State of the drive prior to testingDST failure definition ImplementationShort test Function Code 001b Short and extended testsExtended test Function Code 010b Log page entriesProduct warranty ShippingProduct repair and return information Cheetah 15K.6 FC Product Manual, Rev. D Physical/electrical specifications AC power requirementsDC power requirements ST3450056FC DC power requirements Gbit Amps ST3450856FC DC power requirements Gbit AmpsST3300056FC DC power requirements Gbit Amps ST3300656FC DC power requirements Gbit AmpsST3146756FC DC power requirements Gbit Amps ST3146356FC DC power requirements Gbit AmpsPower sequencing General DC power requirement notesConducted noise immunity Current profilesTypical ST3450856FC current profiles Typical ST3450056FC current profiles Typical ST3300656FC current profiles Typical ST3300056FC current profiles Typical ST3146356FC current profiles Typical ST3146756FC current profiles 450GB models Power dissipation300GB models Temperature Environmental limits146GB models Effective altitude sea level Relative humidityPackage size Packaged/product weight Drop height Shock and vibrationShock Recommended mounting Vibration Air cleanlinessAcoustics Corrosive environmentRoHS compliance statement Mounting configuration dimensions Mechanical specificationsDefect and error management Drive internal defects/errorsDrive error recovery procedures Page Background Media Scan FC-AL system errorsMedia Pre-Scan Deferred Auto-ReallocationIdle Read After Write Drive ID/option selection InstallationDrive orientation CoolingGrounding Drive mountingPage Cheetah 15K.6 FC Product Manual, Rev. D Fibre Channel link service frames FC-AL featuresLink services supported Type of frame Interface requirementsFibre Channel task management functions Fibre Channel task management responsesFC Scsi FCP response codes Function name Response code NPort login Plogi payload Bytes Fibre Channel port loginFibre Channel Process Login Fibre Channel port login acceptNPort Login Accept ACC payload Bytes Process Login Plri payloadFibre Channel fabric login Fibre Channel Process Login AcceptProcess Login Accept ACC payload Bytes Fabric Login Flogi payload BytesFabric Login Accept ACC payload Bytes Fibre Channel fabric accept loginDual port support Scsi commands supportedFibre Channel Arbitrated Loop options FC-AL options supportedSupported commands Cheetah 15K.6 FC Product Manual, Rev. D Cheetah 15K.6 FC Product Manual, Rev. D Supported commands Mode Sense data Inquiry dataCheetah 15K.6 FC inquiry data Bytes Data hex Page Mode Data Header 000000 Cheetah 15K.6 FC Product Manual, Rev. D Miscellaneous features Miscellaneous operating features and conditionsSupported Feature or condition Miscellaneous statusPhysical characteristics FC-AL physical interfacePhysical description Connector requirements Electrical descriptionPin descriptions FC-SCA pin descriptions Pin Signal name Signal type Pin Signal name Signal typeFC-AL transmitters and receivers Fault LED Out PowerEnable port bypass signals Active LED OutMotor start controls 11 SEL6 through SEL0 ID lines Parallel Enclosure Services Interface ESISetting Arbitrated loop physical address Alpa valuesHex Dec Signal characteristics TTL input characteristicsDevice control codes LED driver signals FC Differential outputFC Differential input Receive eye diagram Eye diagram data values Link rate GHz Cheetah 15K.6 FC Product Manual, Rev. D Internet Seagate Technology support servicesPresales Support Technical SupportWarranty Service Data Recovery Services Authorized Service CentersData Recovery Services Call CenterToll-freeDirect dialFAX Numerics IndexFC-AL Flogi Plogi Page See also cooling
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ST3450856FC specifications

The Seagate ST3146356FC, ST3300656FC, and ST3450856FC are hard disk drives designed for enterprise storage solutions, showcasing Seagate’s commitment to performance, reliability, and advanced technology in the data storage sector. These drives cater primarily to the needs of data centers and businesses requiring robust data management capabilities.

The ST3146356FC is notable for its 146GB capacity, 3.5-inch form factor, and 10,000 RPM spindle speed. It employs Serial Attached SCSI (SAS) interface technology, which ensures high data transfer rates and reliable connectivity. This model is designed to handle a multitude of demanding applications, such as online transaction processing and enterprise resource planning, requiring fast access to data and minimized latency.

The ST3300656FC, with a capacity of 300GB, continues the trend of high performance set by its predecessor. This drive also features the 10,000 RPM spindle speed and SAS interface, providing enhanced data throughput and optimized performance for intensive workloads. The drive is built with advanced error recovery features that enhance data integrity and reliability, making it suitable for critical applications where data loss is unacceptable.

The ST3450856FC offers even greater capacity, with a robust 450GB storage option. Like the other models, it operates at 10,000 RPM and utilizes the SAS interface. This drive is designed for scalability, ensuring that it can meet the evolving storage demands of enterprises. It is also equipped with sophisticated technologies such as Seagate's Enhanced S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology), providing continual monitoring of the drive’s health and performance metrics.

All three models share key characteristics, including advanced thermal and power management technologies that help maintain optimal operating temperatures and reduce energy consumption. This is crucial in data center environments where maximizing efficiency is vital for operational cost management. Additionally, Seagate's commitment to low acoustic noise levels ensures quieter operation, which is beneficial in environments where sound levels must be controlled.

In summary, the Seagate ST3146356FC, ST3300656FC, and ST3450856FC drives are engineered for enterprise environments demanding high reliability, speed, and capacity. Their advanced technologies, including SAS interface and enhanced error management systems, make these drives ideal for critical applications in data-intensive sectors. With reinforced durability, effectiveness in managing large volumes of data, and a focus on energy efficiency, these drives symbolize the pinnacle of Seagate's storage innovations for enterprise solutions.
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