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Forum Discussion
Best way to monitor snapshot disk space?
Is there any good way to monitor how much space is being consumed by snapshots? I am running on a NAS with somewhat limited space (using about 65% at the moment). And I have snapshots for all my sh...
From what I've read, you need to enable the btrfs quota features to even see the actual on-disk space used by any share (snapshots or the main folder). CoW makes it rather messy in general, since the the data blocks are referenced in multiple folders (and in the general case this is not neatly structured like it is on the NAS).
In cases where a block is multiply referenced, the file system needs to decide which folder it actually belongs to - an arbitrary decision at that level if you think about it.
In cases where a block is multiply referenced, the file system needs to decide which folder it actually belongs to - an arbitrary decision at that level if you think about it.
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