On 2014/01/05 11:17 PM, Sulla wrote:
Certainly: I have 3 HDDs, all of which WD20EARS.
Maybe/maybe-not off-topic:
Poor hardware performance, though not necessarily the root cause, can be
a major factor with these errors.
WD Greens (Reds too, for that matter) have poor non-sequential
performance. An educated guess I'd say there's a 15% chance this is a
major factor to the problem and, perhaps, a 60% chance it is merely a
"small contributor" to the problem. Greens are aimed at consumers
wanting high capacity and a low pricepoint. The result is poor
performance. See footnote * re my experience.
My general recommendation (use cases vary of course) is to install a
tiny SSD (60GB, for example) just for the OS. It is typically cheaper
than the larger drives and will be *much* faster. WD Greens and Reds
have good *sequential* throughput but comparatively abysmal random
throughput even in comparison to regular non-SSD consumer drives.
*
I had 8x 1.5TB WD1500EARS drives in an mdRAID5 array. With it I had a
single 250GB IDE disk for the OS. When the very old IDE disk inevitably
died, I decided to use a spare 1.5TB drive for the OS. Performance was
bad enough that I simply bought my first SSD the same week.
--
__________
Brendan Hide
http://swiftspirit.co.za/
http://www.webafrica.co.za/?AFF1E97
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