Hitachi Latest GST Ultrastar SAS Enterprise Hard Disk Drive Has 64MB of cache
Hitachi GST is taking on Seagate by launching a fast and small hard drive that matches the Savvio’s capacity and SAS 2 interface but has four times the cache. In the enterprise 2.5-inch drive market Seagate has a 15,000rpm Savvio 15K.2 drive – two meaning second generation – that offers 73GB and 146GB capacity points and has a 16MB cache. HGST’s target is Seagate’s equivalent product, the Cheetah 15K.7. It offers 600GB from its 15,000rpm platters, has a 4gig FC interface and a 16MB cache. So what HGST is bringing as extras to the table are the 6gig SAS interface and a much larger cache.
Hitachi GST, the ambitious number three in the hard drive industry, has launched its Ultrastar C15K147, also spinning at 15,000rpm. You get 147GB, 1 more than Seagate, and a 64MB cache with the SAS 2 (6Gbit/s) interface. There’s an encryption option and the usual stuff about efficient power management and vibration cancelling and so forth, but the gist of it is that HGST has got a drive that matches Savvio 15K.2 speed and capacity and quadruples its cache.
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