[gpfsug-discuss] Performance of GPFS when filesystem is almost full

[Peter Smith]

Hi Carl.

When we commissioned our system we ran an NFS stress tool, and filled the
system to the top.

No performance degradation was seen until it was 99.7% full.

I believe that after this point it takes longer to find free blocks to
write to.

YMMV.

On 6 November 2017 at 03:35, Carl <mutantllama at gmail.com> wrote:

> Hi Folk,
>
> Does anyone have much experience with the performance of GPFS as it
> becomes close to full. In particular I am referring to split data/meta
> data, where the data pool goes over 80% utilisation.
>
> How much degradation do you see above 80% usage, 90% usage?
>
> Cheers,
>
> Carl.
>
>
>
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