Als eine der ersten Festplatten bietet die Deskstar 7K500 ein Serial-ATA-II-Interface, das neben einer maximalen Transferrate von 3 Gbit/s auch einige neue Technologien ermöglicht. So kann Native Command Queuing genutzt werden und die Festplatten können beim Anschalten des PCs nach einander gestartet werden, um das Netzteil zu entlasten.
Pressemitteilung
Half Terabyte Hitachi Hard Drive Tops Trio of Performance Products with Server-Class Data Rates
San Jose, Calif. – Jan. 5, 2005 – Hitachi Global Storage Technologies (Hitachi GST) today announced an expanded product line that will take on the 3.5-inch ATA hard drive segment with a three-prong, performance-focused approach. Hitachi is adding three new 7,200 RPM drives to its family of Deskstar products, targeting the broadest range of 3.5-inch consumer and commercial applications: mainstream PCs and workstations, digital video recorders (DVRs), nearline storage and other enterprise ATA applications.
New Deskstar Drive Portfolio
Deskstar 7K500 – The Hitachi 7K500 offers 500 GB, the industry's largest available capacity for high-end media center PCs, DVRs, nearline storage and other enterprise ATA applications. The SATA version of the drive ships with a large 16 MB buffer to deliver breakthrough performance for bandwidth-intensive applications. In addition to the complete set of SATA II features, the drive includes Rotational Vibration Safeguard (RVS), a technology used to ensure drive performance in high rotational vibration environments, where there are multiple drives in a single enclosure.
Technical Specifications
- 500 GB (GB = 1 billion bytes, accessible capacity may be less)
- 817 Mb/s max. media data rate
- 8.5 ms average seek time
- 7,200 RPM, 4.17 ms average latency
- ATA-100/Serial ATA 3.0 Gb/s
- Smooth Stream Technology
- 25.4 mm in height
- 76 billion bits per square inch maximum areal density
- 5 aluminum platters
- 10 GMR recording heads
- 225 G (2ms) non-operating shock
- 9.0 watt idle power (Parallel ATA)
- 9.6 watt idle power (Serial ATA)
- 3.1 Bels typical idle acoustics
- Fluid Dynamic Bearing (FDB) spindle motor
Deskstar T7K250 - The Deskstar T7K250 uses industry-leading areal densities to offer 250 GB of storage capacity in a two-disk design. The new drive is built on a proven architecture with demonstrated product quality and high performance. The Deskstar T7K250 continues this tradition, while adding SATA II features and Smooth Stream technology for use in DVR and other AV applications.
Deskstar 7K80 - The Deskstar 7K80, which will ship in 40 and 80 GB capacities, has been designed for high-volume manufacturing. It includes the key SATA II features - 3 Gb/s data transfer rate, NCQ and Staggered Spin-up. As with all the other models, the drive also includes Hitachi’s unique load/unload technology, which is a safety ramp for the read-write heads that protects user data in non-power mode.
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