Re: Whooda belived this?

The drives all SAY IBM on them, made in Singapore though. Of course we only
assume (yup, bad bad) that they failed together because Service director was
up and working but never had a chance to report a failure. So both drives
failed within one service director time interval. Since we lost all the logs
when we lost our ASP we'll never know for certain.

As of this writing the machine is running and loaded but not yet quite in
full production. I'll post again if she fails again!

Neil Palmer wrote:

> Hmmm - wonder if these were the Seagate drives IBM is supposedly using in
> iSeries now ?
> Still, sounds like it was something other than the disks themselves that
> caused it if both appear to have failed at exactly same time.
> Have a customer with a new 270 in April (2248, V5R1, 5 x 8.58GB, RAID-5)
> been having a lot of problems - system crashing (but no apparent loss of
> data or drive damage).  They were blaming the twinax controller or wiring
> (customer previously had an F10, which started life as a B10 or B20 and
> was upgraded, so it was using teh older slower twinax controllers).  IBM
> replaced the backplane about 2 weeks ago.  Haven;t heard if that solved
> the problem.
>
> ...Neil
>
> Scenario:
>
>   Two month old 270, SStar, 12 8.5G drives, 4G memory, Redundant power and
> cooling, 1070 CPW, 0 interactive. Nice cool computer room, whole room UPS.
> No foul weather or back hoes in the area.  2:14 AM Monday all is well, no
> load on the system. 2:15 AM *POOF* no more box.  22 hrs later it was
> determined that two drives failed. Despite the fact that they are in
> different RAID sets the system did not handle the failure. One RAID set
> was
> rebuilt when the new drive was added. The second could not be rebuilt as
> the
> set was in "Unknown" status. Rochester said, "Yup, gotta scratch it,
> sorry."
> And we did.

--
Larry Bolhuis           | IBM Certified Solutions Expert
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