Re: Is there a way to query RBD usage

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On 10/16/2013 03:15 AM, Blair Bethwaite wrote:
I.e., can we see what the actual allocated/touched size of an RBD is in
relation to its provisioned size?


No, not an easy way. The only way would be to probe which RADOS objects exist, but that's a heavy operation you don't want to do with large images or with a large number of RBD images.

So technically it's possible, but not easy and cheap.

--
Cheers,
~Blairo


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--
Wido den Hollander
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