[Lustre-discuss] obdfilter/datafs-OST0000/recovery_status

Andreas Dilger adilger at sun.com
Tue Feb 5 12:59:44 PST 2008


On Feb 05, 2008  15:19 -0500, Brian J. Murrell wrote:
> On Tue, 2008-02-05 at 11:41 -0800, Ron wrote:
> > I'm evaluating lustre. I'm trying what I think is a basic/simple
> > ethernet config. with MDT and OST on the same node. Can someone tell
> > me if the following (~150 second recovery occurring when small 190 GB
> > OST is re-mounted) is expected behavior or if I'm missing something?
> 
> it's expected given that you mounted the MDT first.  There is nothing
> technically wrong with this (mountconf allows you to mount in any order)
> except that when the OSTs mount, recovery will be needed.  To avoid
> this, mount the OSTs first.

More importantly, _unmount_ the MDT first, since it is a "client" of the
OSTs, and the OSTs are waiting for this client to reconnect when they
restart.

Cheers, Andreas
--
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.




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