On 03/24/2014 02:30 PM, Haomai Wang wrote:
Hi all, As we know, snapshot is a lightweight resource in librbd and we doesn't have any statistic informations about it. But it causes some problems to the cloud management. We can't measure the size of snapshot, different snapshot will occur different space. So we don't have way to estimate the resource usage of user. Maybe we can have a counter to record space usage when volumn created.
What do you mean with space usage? Cluster wide or pool usage?
When creating snapshot, the counter is freeze and store as the size of snapshot. New counter will assign to zero for the volume. Any feedback is appreciate!
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