Western Digital, a fairly new entrant
in the high-end hard drive market, has bumped up the platter
densities of its S25 family of 2.5”, 10,000 RPM drives and has
added some new security features for good measure. Here are the new
Yes, with the apparent use of three
300GB platters (up from 200GB in the last generation models,) WD can
now offer 900GB drives to enterprises everywhere. 32MB caches, SAS
(not SATA) 6Gbps interfaces, 15mm z-heights, 2 million hour MTBFs and
five year warranties are common to all of the above models. WD also
trumpets the new series' low power consumption, specifying 5.30w idle
and 7.80w load power ratings.
Also newly implemented is full-disk
encryption compliant with the Trusted Computing Group's Enterprise
Class A spec, along with T10 Protection Information tech for advanced
data integrity, increasing the size of the disk sectors from 512
bytes to 520 to make room for tagging. The drives will come available
for public purchase sometime next quarter.
That leaves the enthusiast-class
VelociRaptor drives, which are due for a refresh. The reason I say
this is because the S25 was originally just a variation of the
VelociRaptor, trading SATA for server-friendly SAS among other
features. Hopefully WD will release a new 900GB VelociRaptor soon.
See the product page here.
UPDATE: All but the 450GB model can be found on Amazon.com and at other retailers.