I have chosen to install Applications on a pool made of a vdev from a mirrored 2TB HDDs. I have not installed any application. Instead I manage my dockers containers manually with the help of dockge and portainer/portainer-agent.
However, the usage of tank/ix-apps/docker has grown unexpectedly to me. As illustrated below:
$ sudo zfs list -r tank
NAME USED AVAIL REFER MOUNTPOINT
tank 1.41T 356G 120K /mnt/tank
tank/.ix-virt 1.12M 356G 96K legacy
tank/.ix-virt/buckets 96K 356G 96K legacy
tank/.ix-virt/containers 96K 356G 96K legacy
tank/.ix-virt/custom 96K 356G 96K legacy
tank/.ix-virt/deleted 576K 356G 96K legacy
tank/.ix-virt/deleted/buckets 96K 356G 96K legacy
tank/.ix-virt/deleted/containers 96K 356G 96K legacy
tank/.ix-virt/deleted/custom 96K 356G 96K legacy
tank/.ix-virt/deleted/images 96K 356G 96K legacy
tank/.ix-virt/deleted/virtual-machines 96K 356G 96K legacy
tank/.ix-virt/images 96K 356G 96K legacy
tank/.ix-virt/virtual-machines 96K 356G 96K legacy
tank/.system 1.98G 356G 1.56G legacy
tank/.system/configs-ae32c386e13840b2bf9c0083275e7941 11.8M 356G 11.8M legacy
tank/.system/cores 120K 1024M 120K legacy
tank/.system/netdata-ae32c386e13840b2bf9c0083275e7941 414M 356G 414M legacy
tank/.system/nfs 112K 356G 112K legacy
tank/.system/samba4 376K 356G 376K legacy
tank/backup 108K 356G 108K /mnt/tank/backup
tank/docker 135G 356G 11.0G /mnt/tank/docker
tank/home 49.1G 356G 232K /mnt/tank/home
tank/home/janus 49.1G 356G 48.4G /mnt/tank/home/janus
tank/ix-apps 1.23T 356G 112K /mnt/.ix-apps
tank/ix-apps/app_configs 96K 356G 96K /mnt/.ix-apps/app_configs
tank/ix-apps/app_mounts 96K 356G 96K /mnt/.ix-apps/app_mounts
tank/ix-apps/docker 1.23T 356G 1.23T /mnt/.ix-apps/docker
tank/ix-apps/truenas_catalog 286M 356G 286M /mnt/.ix-apps/truenas_catalog
tank/logs 259M 3.75G 259M /mnt/tank/logs
tank/tls 228K 356G 228K /mnt/tank/tls
Further digging, I have noticed that the data in the directory tank/ix-apps/docker/overlay2 is even greater than the physical size of the HDDs, at 2.5TB.
Have I done anything wrong? Is it the supposed behavior?
Environment:
- TrueNAS SCALE version: 25.04.2.6
- CPU: 13th Gen Intel(R) Core™ i5-1340P
- RAM: 32GB
- Data Pool: Mirrored WD 2TB HDDs