[Lustre-discuss] Running fsck on disabled ost?

[Roy Dragseth]

Hi.

Is it possible to fsck on a disabled and drained OST that is mounted readonly?

We need to fsck an OST and would like to avoid a lengthy downtime while doing 
it.  My plan is to disable and drain the files from the OST and then remount it 
read-only before running fsck on the partition.  This would allow for the 
system being online during this operation instead of hanging on all df 
commands etc.  But is it at all possible to do it this way?  I would like to 
avoid any large scale catastrophic events...

Regards,
r.

-- 
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     Roy Dragseth, Team Leader, High Performance Computing
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