PERC 4e/DC in 2850 - lost 1 disk, RAID5 array failed

[eclark]

Use afacli or dellmgr. Both can do it. There is detailed documentation on how 
to rebuild a raid5 with these tools. For afacli, refer to 

http://linux.dell.com/files/aacraid/aacraid_monitoring_script.txt

as this explains how to do automated testing of raid5 integrity.  Check dells 
website for the docs on afacli and dellmgr.

On Friday 07 July 2006 08:50 am, Fran Fabrizio wrote:
> To clarify, I'm not saying I lost data, I'm saying I lost -access- to
> the data.  I had to rebuild the failed drive in order to regain access.
>   All drives in the array had to be online for me to access the data.
> Once a drive failed, I started losing the ability to read the data.
>
> Sander Steffann wrote:
> > Hi,
> >
> >> I eventually had to hard reboot the server, and upon reboot, the PERC
> >> complained that one disk had failed and that the array was in
> >> a degraded
> >> state.  Since it did not want to serve up the data, I'm now trying to
> >> rebuild that disk from the BIOS, but I thought all of this
> >> could be done
> >> online, while still serving data, and not having 12 hours of downtime
> >> while the disk rebuilds!
> >>
> >> Am I not understanding this, or did this PERC completely fail?
> >
> > The PERC failed. A RAID5 array should never lose data when one drive
> > fails. (you will lose data when a second drive fails, but your data
> > should be ok with one drive failing)
> >
> > - Sander
> >
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