opinion on which software RAID to use
paul at gromit.dlib.vt.edu
Thu Mar 2 20:34:17 UTC 2006
On Thu, 2006-03-02 at 14:11 -0500, Vivek Khera wrote:
> Anyhow, I see at least three ways to set up a mirror of these drives
> and/or partitions:
> Any opinions on which has both qualities: easy to configure/manage
> (ie, recover after failure) and performance? The handbook RAID page
> doesn't even mention gmirror. The atacontrol seems very simple to
> use, at least.
> Let me know what you think. Thanks!
For basic mirroring, I'd say go for gmirror. I've been using it
successfully for a long time. I migrated to it from vinum/gvinum
because it offered more flexible read load-balancing (you can choose
between various policies) and easier recovery. It can even do N-way
I tried atacontrol in the past, but could never get it to reconstruct
after a simulated failure. With gmirror, you have the option of
automatic or manual reconstruction for failed/stale providers.
You might want to consider gvinum if you think you might want to use
RAID 5 or LVM-type aggregations in the future, but if you are just
planning on mirroring I'd strongly suggest going with gmirror.
e-mail: paul at gromit.dlib.vt.edu
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