[Beowulf] Not sure if people have seen it yet, but 2TB disks from Western Digital appear to be in the wild ...
spambox at emboss.co.nz
Tue Jan 27 20:43:14 PST 2009
Bruno Coutinho wrote:
>> Interesting thing is that this presumably 5400rpm drives outperforms
>> its 7200rpm counterparts. And it's green too. :)
> It isn't a 5400rpm driver, it is multispeed with speed between 5400 and
Actually, it almost certainly is 5400 RPM. WD's website originally implied
that the speed was variable, and this was picked up by various review sites.
They (WD) got dinged for it when a couple of sites showed that the speed did
not in fact change, and was fixed at 5400 RPM. Since then, they've removed
nearly all details of the actual speed from their site. However, it is still
mentioned in one place:
Where it says "For each drive model, WD may use a different, invariable
However, no-one has ever found a greenpower drive that operated at anything
but ~5400 RPM, so it's probably safe to assume this one does too. From the
hothardware test, it shows about 110 MB/sec on the outer tracks, which is
about 37% faster than the 1 GB (5400 RPM) greenpower. They've doubled the
areal density of the platters, so a 37% linear density improvement would be
about right, suggesting that the spindle speed hasn't changed.
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