zfs
Install zfs file system on Ubuntu
apt install -y zfs
Listing ZFS file systems
root@ns3048991:~# zfs list NAME USED AVAIL REFER MOUNTPOINT rpool 1.12T 654G 104K /rpool rpool/ROOT 5.50G 654G 96K /rpool/ROOT rpool/ROOT/pve-1 5.50G 654G 5.50G / rpool/data 1.11T 654G 96K /rpool/data rpool/data/vm-101-disk-0 103G 748G 9.29G - rpool/data/vm-101-disk-1 1.01T 1.65T 56K - rpool/swap 4.25G 658G 289M - root@ns3048991:~#
List pools
root@ns3048991:~# zpool list NAME SIZE ALLOC FREE EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT rpool 1.81T 15.4G 1.80T - 0% 0% 1.00x ONLINE - root@ns3048991:~#
Show current IO usage
root@ns3048991:~# zpool iostat
capacity operations bandwidth
pool alloc free read write read write
---------- ----- ----- ----- ----- ----- -----
rpool 15.8G 1.80T 28 46 319K 2.14M
root@ns3048991:~#
To see status
root@ns3048991:~# zpool status pool: rpool state: ONLINE status: Some supported features are not enabled on the pool. The pool can still be used, but some features are unavailable. action: Enable all features using 'zpool upgrade'. Once this is done, the pool may no longer be accessible by software that does not support the features. See zpool-features(5) for details. scan: none requested config: NAME STATE READ WRITE CKSUM rpool ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 sda2 ONLINE 0 0 0 sdb2 ONLINE 0 0 0 errors: No known data errors root@ns3048991:~#