Highest ever capacity enterprise drive released

LONDON (02/24/2004) - Hitachi Ltd. has announced what is believed to be the highest ever capacity enterprise-class hard drive.

The Ultrastar 10K300 -- standing for 10,000rpm and 300GB -- is a 3.5 inch drive with Ultra 320 SCSI and 2Gbit/s Fibre Channel interfaces.

Hard drives are generally divided into desktop and enterprise models with enterprise models built for more demanding use. Typically they will prioritize speed over raw capacity. Desktop drives will tend to emphasize capacity.

There is no formal definition of enterprise class. However the HDD manufacturers are all competing for server business from EMC Corp., IBM Corp. and Hewlett-Packard Co. and their requirements will define enterprise HDD features.

Seagate Technology LLC's desktop Barracuda offers 200GB capacity at 7,200rpm. Its enterprise Cheetah drive offers 10,000rpm and up to 147GB.

Western Digital Corp.'s desktop Caviar drive offers up to 250GB at 7,200rpm. Its enterprise Raptor has up to 74GB at 10,000rpm.

Maxtor Corp.'s desktop DiamondMax Plus 9 features 7,200rpm and 200GB. The enterprise Atlas 15K has 73GB at 15,000rpm. The enterprise Atlas 10K has 147GB at 10,000rpm.

However Maxtor has a MaXLine II offering 300GB at 5,400rpm. The company says this is for nearline storage applications which it positions as less than enterprise class in terms of demands on the drive's longevity and performance. Such drives use the ATA interface and have a near 10msec seek time and 46Mbit/s throughput.

Hitachi's new drive has 300GB at 10,000rpm, offers an 89Mbit/sec sustained transfer rate and sub-5msec seek time in comparison.

Recently Seagate announced a new generation of 2.5 inch drives and emphasized drive array I/O performance over sheer capacity. Hitachi too has 2.5 inch drives.

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