[gpfsug-discuss] Removing LUN from host without unconfiguring GPFS filesystem

Jonathan Buzzard jonathan.buzzard at strath.ac.uk
Sun Jan 21 21:35:44 GMT 2018


On 21/01/18 21:19, Harold Morales wrote:
> Hello,
> 
> I have a GPFS cluster with two filesystems. The disks associated to one 
> filesystem reside on an old storage and the other filesystem disks 
> reside on a much more modern storage system. I have successfully moved 
> data from one fs to the other but there are questions about data 
> integrity that still need verification so the old filesystem needs 
> somehow to be preserved.
> 
> My question is: Can I remove the old filesystem LUNs association to the 
> NSDs servers without removing spectrum scale filesystems, so that later 
> on, if necessary, I could associate them back and the old filesystem 
> would be operating as normal? If possible: what would be the general 
> steps to achieve this?
> 

I would take a look at mmexportfs/mmimportfs myself to be on the safe side.

JAB.

-- 
Jonathan A. Buzzard                         Tel: +44141-5483420
HPC System Administrator, ARCHIE-WeSt.
University of Strathclyde, John Anderson Building, Glasgow. G4 0NG



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