"dathrill" <dathrill@discussions.microsoft.com> wrote in message
news:45234FD8-C073-4103-A49D-BDCEFE582D77@microsoft.com...
> This is probably a hardware issue, but since HP is of no help, I thought
> I'd
> post here too.
>
> We have a SQL/Exchange 2-node cluster(Windows 2003, Exchange 2003, & SQL
> 2000) attached to a SAN(MSA1000). Drives are configured in RAID1+0, with
> a
> single array and 6 logical drives.
>
> Three weeks ago, we expanded the 2nd logical drive(which looked like it
> causedall the other logical drives to shift down into the free space area
> so
> the free space could be added to the 2nd logical drive contiguously?).
> After
> waiting for about 3.5hrs, the logical drive expansion was complete. I
> booted
> up the node that owned the drive (SQL), and ran diskpart successfully to
> expand the logical drive in Windows.
>
> Everything looked good, no errors or obvious problems. The following
> week,
> we started noticing some errors with our stored procedure backup jobs that
> backup or SQL databases to another logical drive on the SAN. The timing
> was
> off on a number of things, causing errors. After looking at the issue, we
> determined that the SQL backups were taking 2-4x longer than before due to
> slow right performance. (Veritas system backups take the same amount of
> time, so read performance looks unaffected)
>
> HP Tech Support is useless, and says that they don't deal with performance
> issues, even though it had to do with tweaking the hardware.
>
> Has anyone else every seen this? If so, do you know of a fix? I hope I
> don't have to blow-away all the logical drives in the SAN and re-create
> them
> to fix the issue. =(
>
>