You can halve the time by running "rbd du" once, keep the output and run
the grep over the output instead.
Den tors 2 aug. 2018 kl 12:53 skrev <xiang....@iluvatar.ai>:
> Hi!
>
> I want to monitor rbd image size to enable enlager size when
> use percentage above 80%.
>
> I find a way with `rbd du`:
>
> total=$(rbd du $rbd_name | grep $rbd_name | awk '{print $2}')
> used=$(rbd du $rbd_name | grep $rbd_name | awk '{print $3}')
>
> percentage=((used/total))
>
> But in this way, it speed a lot time since fast-diff do not enable.
>
> Is there a better way to check this?
>
> Thanks
>
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