[Lustre-discuss] Time needed to enable quota

[Bastian Tweddell]

On 16.Jun.11 10:15 +0200, Roland Laifer wrote:
> > We recently did a quotacheck on a 40M inodes used / 160 TB used
> > filesystem. It took ~20 mins. (DDN 9900 backend storage).
>
> I can report similar values: With 20M inodes used / 100 TB used
> lfs quotacheck on a Lustre 1.8.4 filesystem took ~10 mins.
> Backend storage of this filesystem is HP MSA2000.
>

Thanks for your input.
Yesterday we quotachecked two file systems and were really surprised
by these timings:

A:  ~8TB, ~2M inodes,  30 sec
B: ~29TB, ~6M inodes, 160 sec

lustre 1.8.4
storage: OSTs: JBODs with software raid6, MDT: EMC^2 CX-240

Cheers,

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