Snapshots not deleting and taking up disk space

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zimmfor wrote:

 

We have an older ReadyNAS 312 that is showing that there are alot of snapshots but there are only a couple after I delted them. But it still shows there is a lot of snapshots.

 

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Not exactly.  It shows they are taking a lot of space, but not how many there are.  So try deleting them all.

If that doesn't help, then start with 

# btrfs subvolume list -s /data

That will give you a list of the snapshots.  Copy/paste the list output into notepad or some other editor on the PC, it will help later on.

Then delete each one with 

# btrfs subvolume delete -c path

Path will be something like /data/sharename/.shapshots/###/snapshot  You'll need to prepend each of the path names shown in the list command with /data/ Note that wildcards can't be used with this command, you'll need to enter each one.  

When done, it might take some time to free up the space.  Running a balance (from the volume settings wheel) after they are deleted is a good idea.