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Appeared on: Wednesday, April 16, 2008
Hitachi Announces 450GB Ultrastar 15K450 HDD

Hitachi today announced the Ultrastar 15K450, the new PMR drive that delivers 450GB of storage spinning at 15,000 RPM.

The Ultrastar 15K450 is a performance leader, with Hitachi tests indicating a 30 percent improvement in sequential throughput over its predecessor. The drive features average seek times as low as 3.3 milliseconds and the fast rotational speeds reduce average latency time to 2 milliseconds. The new drive will ship with either 3Gb/s Serial Attached SCSI (SAS) or 4Gb/s Fibre Channel (FC) interfaces.

Technologies such as fluid dynamic bearing motors deliver a low acoustic rating and improved data integrity, and Rotational Vibration Safeguard (RVS) technology anticipates disturbances that can occur in multi-drive configurations and counteracts them. In addition, the Ultrastar 15K450 uses Hitachi's patented head load/unload ramp to minimize integration induced drive damage.

The Ultrastar 15K450 will be shipping this quarter worldwide.

Technical Specifications:

capacity 450GB
183 billion bits per square inch maximum areal density
4 platters, 8 recording heads
2090 Mb/s max. media data rate
3.6 ms average seek time (with command overhead)
15,000 RPM, 2.0 ms average latency
3Gb/s SAS, 4Gb/s FCAL interfaces
16 MB data buffer
25.8 mm in height (max)
750 in weight (max)
250 G/2 ms pulse non-operating shock
SAS: 13.3 watt idle power
FCAL: 13.4 watt idle power
3.7 Bels typical idle acoustics
5 to 55 degrees C operating temperature


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