On 2018-08-29 08:00 AM, Jorge Bastos wrote: > > Look for example at snapshots from July 21st and 22nd, total used > space went from 199 to 277GiB, this is mostly from new added files, as > I confirmed from browsing those snapshots, there were no changes on > the 23rd, and a lot of files were deleted before the 24th, so should't > there be about 80GiB of exclusive content for the 22nd, or am I > misunderstanding how this is reported? ? Those were new files only, > never existed on previous snapshots, If I delete both snapshots from > the 22nd and the 23rd I expect to get about 80GiB freed space. Exclusive means... exclusive... to that 1 snapshop/subvolume. If the data also exists on the 23'rd snapshot, it's not exclusive. If you wanted to report how much data is exclusive to a group of snapshots, (say, July 22 *and* 23rd). you would have to make them members of a parent qgroup, then, you could see the exclusive value of the whole group.
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