ZFS disk resize

[krystianen]

Hi,
I have 1tb ZFS disk, i'm using for data storege. I've allocated almost 100% od storage, so i dont have enoght space even for snapshots.

How can i resize 1tb drive (to eg. 750gb) mounted to VM without losing data?

 

[ph0x]

If the disk is full, it's full, what do you want to shrink? VM images are thinly provisioned on ZFS, so there's only a possibility to run fstrim -a inside the guests and hope for some blocks to be freed. Also, set the autotrim option in the dataset which contains the images' zvols.

 

[_gabriel]

size of vm disk on zfs was reserved.
You can restore "real" size with :
zfs set refreservation=none /path/of/vm-disk