[mythtv-users] warning for anyone with western digital green drives

[jk90090]

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