[Lustre-discuss] MGS disk size and activity

Wojciech Turek wjt27 at cam.ac.uk
Fri Oct 9 21:56:38 PDT 2009


Hi,

I am very interested in finding out how to move co-located MGS to separate
disk. I will be moving my MDTs to new hardware soon and I would like to
separate MGS from MDT. I will be grateful for some info on this subject
please.

Many thanks,

Wojciech

2008/6/23 Andreas Dilger <adilger at sun.com>

> On Jun 17, 2008  12:40 -0700, Klaus Steden wrote:
> > I have a question ... if the MGS is used so infrequently relative to the
> use
> > of the MDS, why is it (is it?) problematic to locate it on the same
> volume
> > as the MDT?
>
> If you have multiple MDTs on the same MDS node (i.e. multiple Lustre
> filesystems) then it is difficult to start up the MGS separately from
> the MDT if it is co-located with one of the MDTs.  It isn't impossible
> (with some manual mounting of the underlying filesystems) to move a
> co-located MGS to a separate filesystem if needed.
>
> Cheers, Andreas
> --
> Andreas Dilger
> Sr. Staff Engineer, Lustre Group
> Sun Microsystems of Canada, Inc.
>
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>



-- 
--
Wojciech Turek

Assistant System Manager

High Performance Computing Service
University of Cambridge
Email: wjt27 at cam.ac.uk
Tel: (+)44 1223 763517
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