[Beowulf] GPFS on Linux (x86)

Craig Tierney ctierney at hypermall.net
Fri Sep 15 16:22:16 PDT 2006

Brent Franks wrote:
> On 9/14/06, Craig Tierney <ctierney at hypermall.net> wrote:
>> I have heard some horror stories about SATA disk in raid systems and how
>> vendors have to work around quirks in the SATA disks to get them to
>> work ok.  They describe it as the SATA disks go 'out to lunch'
>> occasionally and a disk will have a large pause before continuing.
>> Those comments come from a vendor (Be wary).
> We have been quite pleased with SATA disks as stated.  We did have
> issues for the first two months of putting them into testing in which
> we thought it was the controller, but alas it ended up just being
> Maxtors.  We received another batch from maxtor, same issue.  The
> maxtor would drop out of the array, the array would degrade, and
> everything else undesireable would ensue.

My 'be wary' was not to be wary of the disks, but of what the
vendor said.  For my applications, the SATA arrays we installed
worked great.  I wouldn't hesitate to recommend them, but the 
performance was a bit less than our other scsi array (but not
worth the price difference.


> After *finally* convincing our vendor it was Maxtor (we've had
> problems w/ them before this as well) they shipped us a batch of
> Seagates, and it's been operational now for quite some time.  No
> sleeping drives, so far set and forget.
> This, as a disclaimer, was just for our particular application.  I
> will say however, that I will never buy Maxtor again.
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