HDD product update: Seagate, HGST, WD

Posted on March 08, 2011

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By Dave Simpson

The big news in the hard disk drive (HDD) market this week was, of course, Western Digital’s announcement that it plans to acquire Hitachi Global Storage Technologies (see “WD to buy Hitachi GST for $4.3 billion”).

With all eyes on the HDD space, here’s a quick rundown of the recent product announcements from the big three players in the enterprise-class drive market.

Seagate is shipping the Constellation.2, a 2.5-inch drive with a capacity of 1TB. Interface options include 6Gbps SAS or 6Gbps SATA, and capacity options include 250GB and 500GB versions, in addition to the high-end 1TB version. The drives comply with the T10 Protection Information standard for data integrity, and Seagate claims reliability of 1.4 million hours MTBF.

Self Encrypting Drive (SED) functionality is available as an option.

Hitachi GST’s latest entry in the enterprise-class HDD market is the Ultrastar 7K3000, a 3.5-inch, 3TB drive with a rotation rate of 7,200rpm. Hitachi claims an MTBF rating of 2 million hours.

The five-platter Ultrastar 7K3000 consumes 32% fewer watts per GB than Hitachi’s previous generation Ultrastar A7K2000 drives.

Interface choices include 6Gbps SATA (available now) and 6Gbps SAS (due by mid-year). Bulk data encryption (BDE) is available as an option.

Among the latest additions to Western Digital’s enterprise drive lineup are the WD S25 and WD RE SAS drives.

The 2.5-inch, 10,000rpm WD S25 HDDs come with a 6Gbps SAS interface, and capacities of 147GB or 300GB.

The 3.5-inch, 7,200rpm WD RE SAS drives also come with 6Gbps SAS interfaces, and capacities of 1TB or 2TB.

According to John Rydning, IDC’s research director, hard disk drives, SAS drives currently account for more than half of all enterprise-class HDD shipments. Rydning expects SAS drives to account for more than two-thirds of all enterprise drives by 2014.

Related article: WD to buy Hitachi GST for $4.3 billion


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