[lustre-discuss] resize2fs to get more inodes on MDT

[Frederik Ferner]

On 16/06/15 19:32, John White wrote:
> Hey Folks,

> We mis-sized out MDT and ran out of inodes.  What is the
> sanctioned method of getting more inodes?  Would a resize2fs suffice
> (we have plenty of extents left in the VG hosting the MDT) or would
> we need to backup and migrate to a new MDT with more inodes right off
> the bat?

John,

FWIW, we have in the past been in a similar situation and successfully 
increased the number of inodes on a (ldiskfs based) MDT using resize2fs. 
AFAIK you'll need to unmount the MDT and run resize2fs offline, other 
than that, it did work without problems for us.

Kind regards,
Frederik

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Frederik Ferner
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Diamond Light Source Ltd.                       mob:   +44 7917 08 5110
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