RAIDZ configuration

[celine]

Hi,

In proxmox VE 6.2, I create a raidz pool with 3x 1.8 Tb, variation on RAID-5 single parity :

Disks details :

Disk /dev/sdb: 1.8 TiB
Disk /dev/sdc: 1.8 TiB
Disk /dev/sdd: 1.8 TiB

Normally I should have only have 3.6 TiB available storage after the creation pool but in Proxmox/ZFS I show 5.45TiB size.

Why am I seeing the full size and not the usable size?

Thanks

Edit:

But in cli, the size is OK :

root@host:~# zpool status -v
  pool: datastore-01
 state: ONLINE
  scan: none requested
config:

        NAME          STATE     READ WRITE CKSUM
        datastore-01  ONLINE       0     0     0
          raidz1-0    ONLINE       0     0     0
            sdb       ONLINE       0     0     0
            sdc       ONLINE       0     0     0
            sdd       ONLINE       0     0     0

errors: No known data errors


root@host:~# zfs list -o name,avail,used,refer,lused,lrefer,mountpoint,compress,compressratio
NAME          AVAIL   USED     REFER  LUSED  LREFER  MOUNTPOINT     COMPRESS  RATIO
datastore-01  3.52T   559K      128K   142K     42K  /datastore-01        on  1.00x

 

[fiona]

Hi,
here is the explanation. In short, zfs and zpool calculate space differently. If you go to the Summary page of your storage in the GUI, you will see the zfs values. The ZFS view shows the zpool values.