[Lustre-discuss] [HPDD-discuss] Unable to move MDS using procedure in the manual

Colin Faber cfaber at gmail.com
Tue Jun 4 11:21:22 PDT 2013

You could try this

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.


On Tue, Jun 4, 2013 at 12:10 PM, Ken Hornstein <kenh at 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).
> --Ken
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