On 2013/04/06 12:21 PM, "Colin Faber" <cfaber(a)gmail.com> wrote:
You could try this
http://xyratex.prod.acquia-sites.com/sites/default/files/Migration_WC2.1_P
atches_1-0.tar.gz
Shadow wrote this tool, it allows you to correct OI database, though it's
not been updated in a while so I'm not sure how cleanly it will patch.
If you are going to patch 2.1.x, then there are patches in Gerrit which
backport the online LFSCK OI Scrub:
http://review.whamcloud.com/#q,message:LU-957,n,v
Upgrading to 2.4 is probably preferred, but depends on your system.
Cheers, Andreas
On Tue, Jun 4, 2013 at 12:10 PM, Ken Hornstein
<kenh(a)cmf.nrl.navy.mil> wrote:
>Which version of Lustre is this? File based backup / restore does not
>work
>in 2.x. OI scrub which rebuilds the object index is available from Lustre
>2.3 onwards. So file based backup / restore will work from 2.3 onwards.
Well, crud. I guess that's what Colin was going to tell me, and I see
Andreas said the same thing.
So, this leads to a follow-up question: _where_ is latest and greatest
Lustre manual? I used the one labelled 2.0 here:
http://wiki.lustre.org/manual/LustreManual20_HTML/LustreOperations.html
Which doesn't actually mention that you can't do a file-level backup
on the MDT. Some poking around led me to the Whamcloud one, which
actually
does say that.
Perhaps an upgrade to 2.4 is in order (which we were interested in doing
anyway).
Cheers, Andreas
--
Andreas Dilger
Lustre Software Architect
Intel High Performance Data Division