[Lustre-discuss] Registering OST with failover MGS.

[Daniel Kobras]

On Wed, Feb 04, 2009 at 11:07:42AM -0700, Kevin Van Maren wrote:
> Brian J. Murrell wrote:
> > On Wed, 2009-02-04 at 18:25 +0100, Daniel Kobras wrote:
> >> I've tried that--as well as a comma- or colon-separated list of NIDs--,
> >> but neither options appears to work: As soon as I try to mount the OST
> >> partition with the MGS active on the secondary node, the mount fails,
> >> and error messages indicate that only the primary MGS node is queried.
> >> All systems are running Lustre version 1.6.6, by the way.

Correction: tunefs.lustre --mgsnode=mgs1 --mgsnode=mgs2 ...
works as soon as I don't typo the NIDs. tunefs.lustre
--mgsnode=mgs1:mgs2 doesn't.

> > Well, it should work as described.  Please try to find the bugzilla bug
> > referencing a problem with this and see if it applies.  If not, please
> > file a new bug.
> 
> Probably referring to bug 15912, which was for "mkfs" issues, where the 
> mgs option had to be
> specified twice to indicate two different servers.

mkfs was fixed in 1.6.6, but there still seems to be a similar issue
with tunefs.lustre. I've just filed #18438 for this now.

Thanks,

Daniel.