Hard drive
Form Factor: 3.5" x 1/3H
Capacity: 147 GB
Interface Type: Ultra320 SCSI, Serial Attached SCSI, 4Gb Fibre Channel, 2Gb Fibre Channel
Connector: 68 pin HD D-Sub, 40 pin Centronics (SCA-2), 80 pin Centronics (SCA-2)
Features: Fluid Dynamic Bearing (FDB) motor, Fluid Dynamic Bearing (FDB) motor, TrueTrack servo technology, antiferromagnetically-coupled (AFC) media, Rotational Vibration Safeguard (RVS), Command Reordering Optimization, Rotational Position Optimization, Fluid Dynamic Bearing (FDB) motor, antiferromagnetically-coupled (AFC) media, Rotational Vibration Safeguard (RVS), Command Reordering Optimization, Rotational Position Optimization, Fluid Dynamic Bearing (FDB) motor, antiferromagnetically-coupled (AFC) media
Compliant Standards: S.M.A.R.T.
Buffer Size: 16 MB
Performance
Drive Transfer Rate: 320 MBps (external), 300 MBps (external) / 141 MBps (internal), 425 MBps (external) / 141 MBps (internal), 200 MBps (external), 320 MBps (external) / 141 MBps (internal)
Seek Time: 6.7 ms (max), 3.7 ms (average) / 6.7 ms (max), 3.3 ms (average) / 6.7 ms (max), 3.6 ms (average) / 6.7 ms (max)
Track-to-Track Seek Time: 0.6 ms
Average Latency: 2 ms
Spindle Speed: 15000 rpm
Reliability
Non-Recoverable Errors: 1 per 10^15
Start / Stop Cycles: 50,000
Expansion / connectivity
Compatible Bays: 1 x internal - 3.5" x 1/3H
Interfaces: 1 x Ultra320 SCSI - 68 pin HD D-Sub (HD-68), 1 x Serial Attached SCSI - 29 pin internal SAS (SFF-8482), 1 x Fibre Channel - 40 pin Centronics (SCA-2), 1 x 2Gb Fibre Channel, 1 x Ultra320 SCSI - 80 pin Centronics (SCA-2)
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Manufacturer's product description
Hitachi delivers its highest-performing hard drive ever with the introduction of the Ultrastar 15K147. With average seek times as fast as 3.3 ms, average latency of 2 ms, and as much as 33 percent more in I/Os per second than its 10,000 RPM rivals, enterprise customers can access their data more quickly and efficiently. These performance characteristics of the Ultrastar 15K147 make it the ideal solution for mission-critical enterprise computing environments like online transaction processing, data analysis, and other multi-user applications. Performance and reliability are key requirements for enterprise-class hard drives. The mature design of the Ultrastar 15K147 ensures greater reliability, which helps enable shorter qualification times. Several key technologies are designed into Ultrastar drives to ensure high reliability, enhance performance and protect customer data. The Ultrastar 15K147 incorporates Rotational Vibration Safeguard (RVS) technology to maintain drive performance in multi-drive systems where rotational vibration is likely to occur. Fluid dynamic bearing (FDB) motors deliver quieter drives with improved data integrity. Hitachi offers the only enterprise-class hard drive utilizing a head load/unload ramp which helps minimize drive failures caused by handling damage during integration.
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This product has not yet been reviewed. 
08.06.2006
25.05.2004
