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Space warning, less than 20%. But more than 50% is inaccessible...
Hi I get warning that space is less than 20%. When i take a look into total NAS i see Unaccessible space more than 50%. Total Capasity is 10,8 Tbyte Total visible "used" is 4,5 Tbyte Unacc...
As to the space warning, 2.2/10.8 is about 20%.
What tool is giving you the second screenshot? Generally you can't rely on analysis of a mounted network share - particularly with btrfs, where the on-disk structures simply aren't exposed with SMB or NFS.
From Googling around it looks like the application is called SpaceSniffer. The "Unaccesible" space might be due to permissions issues or the application simply not being able to properly determine the space usage.
The NAS gets the information directly from the filesystem. This will always be more accurate than any 3rd party app. Trust the NAS here. StephenB is absolutely correct here that a tool trying estimate space usage over SMB where it will not have knowledge of the underlying NAS filesystem - that is never going to work properly :)
I will add that the BTRFS quotas module can in rare circumstances cause issues for space estimation on the NAS and you have quotas enabled. But other than that, the NAS is always the more accurate.
Is there any reason you might think the NAS space estimation is too high?
The unaccessable space could be seeing /data as a share, which, of course, isn't actually separate space. I'm not sure how it sees it without using admin credentials, which I would then expect to have access, but it is a "sniffer".
What drives are in the NAS? Do you think you should have more room based on the drive sizes?
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