[Lustre-discuss] OST corruption?

Dilger, Andreas andreas.dilger at intel.com
Fri Apr 26 16:49:45 PDT 2013

On 2013/26/04 8:56 AM, "Andrus, Brian Contractor" <bdandrus at nps.edu> wrote:

>FWIW, your total should be used+free+reserved
>There is normally a % set aside for root only
>This is changeable too.
>tune2fs -m 0 <device>

If your filesystem ever gets totally full, it will have permanent
fragmentation for any files written at this point.  I agree that 5% of a
filesystem is probably too much to reserve, but at least 1% is reasonable
avoid fragmentation.

Cheers, Andreas
Andreas Dilger

Lustre Software Architect
Intel High Performance Data Division

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