Proxmox ZFS issue

S

SuperMiguel

Renowned Member
Mar 30, 2010
30
0
71
" Hello all im having an issue with ZFS and proxmox, for some reason it is reporting that im using X amount of data on side but different on another.

Here is the zfs list -r data

Code: 
zfs list -r data
NAME                          USED  AVAIL  REFER  MOUNTPOINT
data                         2.45T   100G   140K  /data
data/backup                  5.73G   100G  5.73G  /data/backup
data/data                    2.45T   100G  45.0M  /data/data
data/data/subvol-103-disk-1  2.45T   100G   104G  /data/data/subvol-103-disk-1
data/iso                     2.14G   100G  2.14G  /data/iso

and here is my df -h

Code: 
df -h
Filesystem                    Size  Used Avail Use% Mounted on
udev                          7.8G     0  7.8G   0% /dev
tmpfs                         1.6G  109M  1.5G   7% /run
rpool/ROOT/pve-1               85G  1.5G   84G   2% /
tmpfs                         7.8G   46M  7.8G   1% /dev/shm
tmpfs                         5.0M     0  5.0M   0% /run/lock
tmpfs                         7.8G     0  7.8G   0% /sys/fs/cgroup
data                          100G  256K  100G   1% /data
data/backup                   106G  5.8G  100G   6% /data/backup
data/data                     101G   45M  100G   1% /data/data
data/data/subvol-103-disk-1   205G  105G  100G  52% /data/data/subvol-103-disk-1
data/iso                      103G  2.2G  100G   3% /data/iso
rpool                          84G  128K   84G   1% /rpool
rpool/ROOT                     84G  128K   84G   1% /rpool/ROOT
rpool/data                     84G  128K   84G   1% /rpool/data
rpool/data/subvol-100-disk-1   64G  4.5G   60G   7% /rpool/data/subvol-100-disk-1
rpool/data/subvol-101-disk-1  8.0G  1.1G  7.0G  14% /rpool/data/subvol-101-disk-1
rpool/data/subvol-102-disk-1   16G  1.6G   15G  10% /rpool/data/subvol-102-disk-1
rpool/data/subvol-103-disk-1   16G  1.5G   15G  10% /rpool/data/subvol-103-disk-1
/dev/fuse                      30M   32K   30M   1% /etc/pve
tmpfs                         1.6G     0  1.6G   0% /run/user/0
tmpfs                         1.6G     0  1.6G   0% /run/user/1000

As you can see in zfs list -r data, we see "data/data/subvol-103-disk-1 2.45T 100G 104G /data/data/subvol-103-disk-1" says using 2.45T but when i run df -f it says that data/data/subvol-103-disk-1 its only using 105GB. Also my VM only sees this 205GB mount instead of the 2.45T
 
Hi,

df use for calculation fixed block size, but zfs has dynamic blocks.
Also, df do not know dedub, compression, snapshots and all other zfs features.
 
also maybe do you have snapshots?
Code: 
zfs list -r data -t all
 
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