Is it possible that TrueNAS has unused files/trash files?

[hAtul]

I have been using truenas for a year now and noticed that there's no chance that my files on my main drive weigh that much.
Is it possible that it has many temp files/temp instalation files/trash files (recycle bin?) that should be deleted?
How can I clean my drive from such things. if any.

i already deleted a lot of old snapshots. is there anything else that i should check?

 

[sretalla]

It's almost always snapshots... check them again.

You can use zfs list -t snap poolname to get a list in full.

If that's really not it, do this:

Pool Cleaning Tool

I recently needed to get back some space on one of my FreeNAS servers and had been tearing my hair out looking for an equivalent of WinDirStat or Disk Inventory X (or even a good way to run those over a mapped path, which does work, btw), but wasn't happy with leaving a process running across 2...

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