Hard drive
Form Factor: 3.5" x 1/3H
Capacity: 500 GB
Interface Type: Serial ATA-300
Buffer Size: 32 MB
Features: Fluid Dynamic Bearing (FDB) motor, load/unload technology, Rotational Vibration Safeguard (RVS), Native Command Queuing (NCQ), Thermal Flyheight Control (TFC), Self-Protection Throttling (SPT)
Performance
Drive Transfer Rate: 300 MBps (external) / 134 MBps (internal)
Seek Time: 8.2 ms (average)
Average Latency: 4.17 ms
Spindle Speed: 7200 rpm
Reliability
MTBF: 1,200,000 hour(s)
Non-Recoverable Errors: 1 per 10^15
Start / Stop Cycles: 50,000
Expansion / connectivity
Interfaces: 1 x Serial ATA-300 - 7 pin Serial ATA
Compatible Bays: 1 x internal - 3.5" x 1/3H
Environmental parameters
Min Operating Temperature: 5 °C
Max Operating Temperature: 60 °C
Shock Tolerance: 70 g @ 2ms half-sine pulse (operating) / 300 g @ 1ms half-sine pulse (non-operating)
Vibration Tolerance: 0.67 g @ 5-500 Hz (operating) / 1.04 g @ 2-200 Hz (non-operating)
Ciao
Listed on Ciao since : 03/12/2007
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Manufacturer's product description
The Ultrastar A7K1000 delivers up to one terabyte of storage capacity in a standard 3.5-inch form factor, filling a vital need for high-density storage in the enterprise. As the third-generation design, based on the popular Deskstar E7K500, the Ultrastar A7K1000 continues to set the standard in enterprise-class reliability and performance for lower duty cycle enterprise applications. With a unique 5-platter design, Hitachi has relaxed the bit densities to achieve higher reliability. The Ultrastar A7K1000 is built using the industry's most reliable perpendicular magnetic recording (PMR) recording heads and media. The Ultrastar A7K1000 features a 3 Gb/s SATA interface supporting key features in the Serial-ATA specification including Native Command Queuing (NCQ), staggered spin-up and hot-swap capability. The Ultrastar A7K1000 allows for configuration scalability and with the same physical connector as Serial Attached SCSI (SAS) drives, it's ideal for use in mixed-drive environments. In multidrive environments, rotational vibration, which results from the vibration of neighboring drives in a system, can degrade hard drive performance. To aid in maintaining high performance, the Ultrastar A7K1000 incorporates enhanced Rotational Vibration Safeguard (RVS) technology providing up to 50% improvement over the previous generation against performance degradation, leading the industry. Hitachi's Ultrastar A7K1000 extends the company's long-standing tradition of performance and capacity leadership. The proven drive design enables high reliability and availability to customer data. Ultrastar quality, performance, and world-class technical support and service provides customers with a lower total cost of ownership over previous generations.
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This product has not yet been reviewed. 
08.06.2006
25.05.2004
