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Built upon proven technology
Hitachis next-generation 3.5-inch 15,000 RPM hard drive delivers the performance and reliability required for mission-critical enterprise computing environments. Leveraging the proven system architecture and electronics of the previous generation, the Ultrastar 15K300 provides up to 300GB capacity, 16MB cache and Ultra320 SCSI, 3Gb/s Serial Attached SCSI (SAS) and 4Gb/s Fibre Channel interfaces. These features make the Ultrastar 15K300 the ideal solution for demanding enterprise computing environments like online transaction processing, intensive data analysis and other multi-user applications. The mature design of the Ultrastar 15K300 helps to ensure shorter qualifi cation times.
Demonstrated reliability
Key reliablility features have been built into the Ultrastar 15K300. Rotational Vibration Safeguard (RVS) technology ensures drive performance in multi-drive systems where rotational vibration is likely to occur. Hitachis Thermal Fly-height Control (TFC) capability maintains a consistent fl y-height during the read/write process ensuring a better soft error rate and end-to-end data protection enhances error detection for optimal data integrity. Finally, Hitachi offers the only enterprise-class hard drive utilizing a head load/unload ramp to help minimize drive failures as a result of handling during integration.
Hitachis next-generation 3.5-inch 15,000 RPM hard drive delivers the performance and reliability required for mission-critical enterprise computing environments. Leveraging the proven system architecture and electronics of the previous generation, the Ultrastar 15K300 provides up to 300GB capacity, 16MB cache and Ultra320 SCSI, 3Gb/s Serial Attached SCSI (SAS) and 4Gb/s Fibre Channel interfaces. These features make the Ultrastar 15K300 the ideal solution for demanding enterprise computing environments like online transaction processing, intensive data analysis and other multi-user applications. The mature design of the Ultrastar 15K300 helps to ensure shorter qualifi cation times.
Demonstrated reliability
Key reliablility features have been built into the Ultrastar 15K300. Rotational Vibration Safeguard (RVS) technology ensures drive performance in multi-drive systems where rotational vibration is likely to occur. Hitachis Thermal Fly-height Control (TFC) capability maintains a consistent fl y-height during the read/write process ensuring a better soft error rate and end-to-end data protection enhances error detection for optimal data integrity. Finally, Hitachi offers the only enterprise-class hard drive utilizing a head load/unload ramp to help minimize drive failures as a result of handling during integration.
| General | |
| Interface | Ultra320 SCSIs |
| Capacity (GB) | 300 |
| Data heads (physical) | 8 |
| Data disks (physical) | 4 |
| Max. areal density (Gbits/sq. in.) | 113 |
| Performance | |
| Data buffer (MB) | 16 |
| Rotational speed (RPM) | 15,000 |
| Latency average (ms) | 2.0 |
| Media transfer rate (Mbits/sec, max) | 1441 |
| Interface transfer rate (MB/sec, max) | 320 |
| Seek time (ms. read, typical) | 3.6 |
| Reliability | |
| Error rate (non-recoverable, bits read) | 1 in 10 |
| Starts/stops (at 40˚ C) | 50,000 |
| Availability (hrs/day x days/wk) | 24 x 7 |
| Acoustics | |
| Idle (Bels, typical) | 3.5 |
| Power | |
| Requirement | +5 VDC (+/-5%) +12 VDC (+/-10%) |
| Operating (W, typical) | 14.9 |
| Idle (W) | 13.1 |
| Physical size | |
| z-height (mm) | 25.8 |
| Dimensions (width x depth, mm) | 101.6 x 146 |
| Weight (typical, g, max.) | 745 |
| Environmental (Operating) | |
| Ambient temperature | 5 to 55 degree C |
| Shock | 30G (2ms) |
| Vibration, random (G RMS 5 to 500 Hz) | 1.2, all axes |
| Environmental (Non-operating) | |
| Ambient temperature | -40 to 70 degree C |
| Shock (half-sine wave) | 250G (2ms) |
| Vibration, random (G RMS 5 to 500 Hz) | 1.04 all axes |
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