[Lustre-discuss] how to move OST to different OSS

Andreas Dilger adilger at sun.com
Wed Nov 4 01:18:50 PST 2009


On 2009-11-03, at 18:56, Herbert Fruchtl wrote:
> We have 27TB on three OSSes. Each has two OSTs. Now one of the OSS  
> servers has
> died, and it may take weeks until it is repaired. Can I just plug  
> the RAID with
> the OSts belonging to the dead OSS into one of the other OSSes? If  
> so, how do I
> do this without data loss? The Lustre version is 1.6.7.

You should be able to, but you will need to use --writeconf.  This is  
documented
in the Lustre manual (it is the same as changing the IP address of an  
OSS).

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




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