[mythtv-users] warning for anyone with western digital green drives
jk90090
jk90090 at gmail.com
Fri Jan 6 19:06:06 UTC 2012
On 1/6/12 3:42 AM, PJR wrote:
> I tried using 2 WD Green 1TB 64MB cache drives in a raid 1 setup for
> myth storage, I used an SDD for all the s/w. The system would not start
> due to the raid failing one drive. After lots of investigation I ran
> smarttools only to find that both drives failed on read failures for the
> same LBA. I've sent both drives back hoping to get them replaced.
> However, further investigation suggests these drives are not suitable
> for raid because of the power down issue. If the drives are replaced,
> I'll try smarttools on them and if this is ok I'll try them in a raid
> setup again and see what happens.
>
>
I've used various WD Green drives in my RAID 1 and RAID 6 config without
particular issue. My Seagate drives are barfing before my WDs are.
I know all of these manufacturers are setting the maximum response time
for 'consumer class' drives for I/O calls to long lengths so RAID
controller can get cranky under high loads and timeout the drives from
time-to-time. This is generally a ploy so they can in turn sell
'enterprise' drives instead for those purposes when in reality the
mechanics in many cases (but not all) are identical.
-JK
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