Re: URGENT: Need help rebuilding iir RAID5 array with failed drive

At 08:49 AM 6/26/2008, Garrett Cooper wrote:
>Hello,
>       First off sorry for the cross-post. I typically don't do this
>but this is an important question, so please bear with me. I'm just
>trying to get more eyes on the subject so I can (maybe) get a reply
>quicker...
>       I'm running 8-CURRENT on my machine and it appears that one of
>the disks in my RAID5 array has taken a nose dive (BIOS recognizes
>that it exists, but Intel Matrix Manager claims that the disk is an
>"Offline Member"). After doing some reading it appears that it's
>kaput, so I need to get a replacement disk to fix this one...
>       That aside, I need to determine how to rebuild the array in a
>Unix environment because Intel only provides instructions for how to
>use their Windows matrix manager. If anyone can point me to some links
>or provide me with some pointers on how to correct this issue, I'd owe
>you a lot; in fact the next time you come by Santa Cruz, CA I'll
>gladly treat you to some beers or something else you might want :)...
>Linux solutions (if there isn't a proper one for FreeBSD) are valid,
>as long as the core data remains uncorrupted and I can do what I need
>to from a LiveCD. I'm just scared to boot up OS and have it do some
>irrevocable operation like fsck -y and assume parity errors are ok or
>something along those lines  (I don't remember if I set rc.conf to
>fsck -y and I know I can change that from single-user mode, but I want
>to play things conservatively if at all possible) :\...
>       Filesystem is UFS2 with softupdates of course.
>       Point proven that I need to backup my data more often :(...
>TIA,
>-Garrett
>
>PS If replying on the questions_at_ list, please CC me as I'm not
>subscribed to that list.


Most of the intel RAID functions can be accessed through the BIOS console 
too.  It isn't as pretty as the GUI versions but has the same functions.

The drives are labeled so the RAID controller will know a drive was 
replaced.  You just need to tell the controller to add it to the array and 
rebuild the array.

         -Derek

-- 
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.