auto-rebuild RAID mirrors
Bill McGonigle
bill at bfccomputing.com
Thu Apr 19 07:13:40 EDT 2007
On Apr 18, 2007, at 11:12, Derek Atkins wrote:
> I used to use the attached script. Note that it USED to work,
> but I haven't tested it on recent systems. I originally wrote
> it on RHL9, and I think I updated it for FC1, but I dont think
> I've tested it more recently than that, so YMMV.
Cool, looks like it might need updating for mdadm.conf rather than
raidtab but it should be a good start. Ideally neither would be
required but I haven't yet figured out the part about reading the
RAID header from member disks for autodiscovery. I'll post back here
when I get something working.
> This script assumes RAID1 and matching drives (not raid 10). It also
> assumes IDE, not USB or SATA.
Should be easy enough to handle the virtual SCSI stuff anyway (my USB
drives pretend to be SCSI). For RAID-10, that's RAID-0 over RAID-1
members, so just getting the RAID-1 drives online is all I really
need, the RAID-0 aspect should be running already. I'll make sure it
ignores RAID-0 for the issue of reconstruction, as that's largely
meaningless. I've been sufficiently warned away from RAID-5 not to
need it personally.
> But hopefully it'll at least give you some clues if not a working
> rebuild script..
>
> It's in PERL.
Fantastic. I'll poke around CPAN and see if anybody has released
modules for any of the above tasks.
-Bill
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