[Lustre-discuss] e2scan for backup

[James Braid]

On Wed, Mar 12, 2008 at 10:31 AM, Jakob Goldbach <jakob at goldbach.dk> wrote:
>  Does e2scan require that I take down the MDT before scanning or could I
>  do this on top of a LVM snapshot ?

You don't need to stop the MDS. We just take a snapshot of the MDS
device and run e2scan against the snapshot.

>  I can't find references to e2scan it in the manual - is it considered
>  experimental?

It seems to work well enough but I don't think it's really documented
anywhere. There's a few bugs in bugzilla that have some useful
information in them.