Hi all, ive got a really strange cache issue where 400GB has vanished. So far I have restarted the array, restarted the server, turned off all dockers and VM's. Just cant figure out why its suddenly lost 400GB of usable storage. Server has been rock solid for years, 99% of the time its just been run mover and the space is sorted but this doesn't appear to be locked files stuck on the cache. Trim has been run from scheduler, that's given back about 1GB. Balance and scrub doesn't seem to impact this.

Any unraid wizards have any clue whats ate the storage?

Data, RAID1: total=1.82TiB, used=1.81TiB
System, RAID1: total=32.00MiB, used=320.00KiB
Metadata, RAID1: total=3.03GiB, used=1.50GiB
GlobalReserve, single: total=512.00MiB, used=0.00B

Cache only shows 3 folders on it

Checking those shares, they add up to 1.4TB (ish)

Something is using that space. Note that image type files can grow with time if not unmapped, but if you don't know what it is, you can move some files to the array until you find out what it is.

Sods law as soon as i post i found it. I had a 1000G Vdisk that was taking up 1.5TB.

Not really sure why it wasnt releasing the space but i can just restore the disk from backup for now

This should help keeping the vdisk smaller:

https://forums.unraid.net/topic/51703-vm-faq/#findComment-557606