$ sudo btrfs qgroup show /var/lib/incus/storage-pools/base-btrfs
Qgroupid Referenced Exclusive Path
-------- ---------- --------- ----
0/5 16.00KiB 16.00KiB <toplevel>
0/256 758.01MiB 758.01MiB containers/MyCloudContainer
0/257 3.06GiB 67.43MiB containers-snapshots/MyContainerName/punt1
0/258 13.07GiB 65.02MiB containers-snapshots/MyContainerName/punt2
0/259 13.07GiB 29.93MiB containers-snapshots/MyContainerName/punt3
0/260 3.09GiB 240.00KiB containers-snapshots/MyContainerName/punt4
0/261 3.09GiB 100.00KiB containers-snapshots/MyContainerName/punt5
0/262 3.09GiB 104.00KiB containers-snapshots/MyContainerName/punt6
0/263 3.09GiB 140.00KiB containers-snapshots/MyContainerName/punt7
0/264 3.16GiB 80.16MiB containers/MyContainerName
0/265 523.62MiB 523.62MiB containers/MyContainerName3
0/266 38.74GiB 38.74GiB virtual-machines/MyMachine
0/267 121.33MiB 121.33MiB containers/debian
0/268 373.64MiB 373.64MiB containers/frxyt
0/269 178.86MiB 178.86MiB containers/gentle-tetra
0/270 101.58MiB 101.58MiB containers/ubuntu
0/271 101.74MiB 101.74MiB containers/ubuntu2
0/272 3.53GiB 3.53GiB containers/webtop
0/273 3.71GiB 3.71GiB custom/default_debian-13.6.0-amd64-DVD-1.iso.iso
$ incus exec MyContainerName -- df -hT /
Filesystem Type Size Used Avail Use% Mounted on
/dev/loop0 btrfs 1.0T 62G 962G 7% /
$ incus config device set MyContainerName root size=10GiB
$ incus exec MyContainerName -- dd if=/dev/urandom of=out.img bs=4M count=1000
1000+0 records in
1000+0 records out
4194304000 bytes (4.2 GB, 3.9 GiB) copied, 200.673 s, 20.9 MB/s
$ sudo btrfs qgroup show /var/lib/incus/storage-pools/base-btrfs
Qgroupid Referenced Exclusive Path
-------- ---------- --------- ----
0/5 16.00KiB 16.00KiB <toplevel>
0/256 758.01MiB 758.01MiB containers/MyCloudContainer
0/257 3.06GiB 67.43MiB containers-snapshots/MyContainerName/punt1
0/258 13.07GiB 65.02MiB containers-snapshots/MyContainerName/punt2
0/259 13.07GiB 29.93MiB containers-snapshots/MyContainerName/punt3
0/260 3.09GiB 240.00KiB containers-snapshots/MyContainerName/punt4
0/261 3.09GiB 100.00KiB containers-snapshots/MyContainerName/punt5
0/262 3.09GiB 104.00KiB containers-snapshots/MyContainerName/punt6
0/263 3.09GiB 140.00KiB containers-snapshots/MyContainerName/punt7
0/264 7.07GiB 3.98GiB containers/MyContainerName
0/265 523.62MiB 523.62MiB containers/MyContainerName3
0/266 38.74GiB 38.74GiB virtual-machines/MyMachine
0/267 121.33MiB 121.33MiB containers/debian
0/268 373.64MiB 373.64MiB containers/frxyt
0/269 178.86MiB 178.86MiB containers/gentle-tetra
0/270 101.58MiB 101.58MiB containers/ubuntu
0/271 101.74MiB 101.74MiB containers/ubuntu2
0/272 3.53GiB 3.53GiB containers/webtop
0/273 3.71GiB 3.71GiB custom/default_debian-13.6.0-amd64-DVD-1.iso.iso
$ incus exec MyContainerName -- dd if=/dev/urandom of=out2.img bs=4M count=1000
dd: error writing 'out2.img': Disk quota exceeded
751+0 records in
750+0 records out
3148906496 bytes (3.1 GB, 2.9 GiB) copied, 158.445 s, 19.9 MB/s
$ sudo btrfs qgroup show /var/lib/incus/storage-pools/base-btrfs
Qgroupid Referenced Exclusive Path
-------- ---------- --------- ----
0/5 16.00KiB 16.00KiB <toplevel>
0/256 758.01MiB 758.01MiB containers/MyCloudContainer
0/257 3.06GiB 67.43MiB containers-snapshots/MyContainerName/punt1
0/258 13.07GiB 65.02MiB containers-snapshots/MyContainerName/punt2
0/259 13.07GiB 29.93MiB containers-snapshots/MyContainerName/punt3
0/260 3.09GiB 240.00KiB containers-snapshots/MyContainerName/punt4
0/261 3.09GiB 100.00KiB containers-snapshots/MyContainerName/punt5
0/262 3.09GiB 104.00KiB containers-snapshots/MyContainerName/punt6
0/263 3.09GiB 140.00KiB containers-snapshots/MyContainerName/punt7
0/264 10.00GiB 6.92GiB containers/MyContainerName
0/265 523.62MiB 523.62MiB containers/MyContainerName3
0/266 38.74GiB 38.74GiB virtual-machines/MyMachine
0/267 121.33MiB 121.33MiB containers/debian
0/268 373.64MiB 373.64MiB containers/frxyt
0/269 178.86MiB 178.86MiB containers/gentle-tetra
0/270 101.58MiB 101.58MiB containers/ubuntu
0/271 101.74MiB 101.74MiB containers/ubuntu2
0/272 3.53GiB 3.53GiB containers/webtop
0/273 3.71GiB 3.71GiB custom/default_debian-13.6.0-amd64-DVD-1.iso.iso
$ incus exec MyContainerName -- df -hT /
Filesystem Type Size Used Avail Use% Mounted on
/dev/loop0 btrfs 1.0T 69G 955G 7% /
$ stat -f /var
File: "/var"
ID: 72f8e18dd1662070 Namelen: 255 Type: btrfs
Block size: 4096 Fundamental block size: 4096
Blocks: Total: 472627712 Free: 216717694 Available: 216325830
Inodes: Total: 0 Free: 0
$ incus exec MyContainerName -- stat -f /
File: "/"
ID: 907f40a282cd8d08 Namelen: 255 Type: btrfs
Block size: 4096 Fundamental block size: 4096
Blocks: Total: 268435456 Free: 250434694 Available: 250316274
Inodes: Total: 0 Free: 0
Okay, quota limit is working although is not seen as used/available space by guest.
To see right numbers, What does df depend on?
Thank you.