On Sun, Nov 15, 2009 at 12:29 PM, Chip Marshall <[email protected]> wrote:

> I've heard that the RAID is unstable under older Linux kernels, but that
> was 3~4 years ago, so I suspect it's been fine for a while now.
>

Software RAID, of course, as hardware RAID should be transparent to the OS
at the block device point.  At risk of adding redundancy to the obvious, an
Ubuntu 8.04 Xen box of mine has been giving me a lot of trouble.  Kernel
version 2.6.24-25-xen and mdadm 2.6.3 are not the newest, but they are the
most recent in Ubuntu 8.04 repos, and I don't think they would count as
old.  The issue I have is well known and there might be a fix available in
backports or proposed already, but I have yet to look as it seems to only be
at boot and this machine is not one I can current reboot at will.  Soon,
baby.

Anyway, in this case, it seems to be all about mdadm, not the kernel, so
none of this is really on contradition to your comment about older kernels.
=)  For the bored or concerned Details can be found at these links:

https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/139802
https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/188392
https://bugs.launchpad.net/ubuntu/+bug/140854
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