On Thu, 2014-12-04 at 16:46 -0800, Gordon Messmer wrote:
> On 12/04/2014 05:45 AM, David McGuffey wrote:
> In practice, however, there's a bunch of information you didn't provide,
> so some of those steps are wrong.
>
> I'm not sure what dm-0, dm-2 and dm-3 are, but they're indicated in your
> mdstat. I'm guessing that you made partitions, and then made LVM or
> crypto devices, and then did RAID on top of that. If either of those
> are correct, that's completely the wrong way to build RAID sets. You
> risk either bad performance from doing crypto more often than is
> required, or possibly corruption as a result of LVM not mapping blocks
> the way you expect.
>
> If you build software RAID, I really strongly recommend that you keep it
> as simple as possible. That means a) build sofware RAID sets from raw
> partitions and b) use as few partitions as possible.
>
Gordon,
Agree, I've probably made it too complicated. It is a workstation with
sensitive data on it so I've encrypted the partitions.
md1 is fairly simple...two large disks in raid1, encrypted, and mounted
as /home.
md0 is probably way too complicated and not a good way to go. The
sensitive data in md0 is in /var (virtual machines).
I've backed up both /home and /var/lib/libvirt/images, so I think I'll
start over on md0 with a new disk and a fresh install.
Dave
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