Last updated Jun 3, 2026

Create ZFS Pool & Datasets#

The media storage uses a ZFS mirror pool. A mirror protects against a single disk failure and is the minimum recommended setup for data you care about.

Create the pool#

Run this on the Proxmox host. Replace /dev/sdb and /dev/sdc with your actual data disk names (check with lsblk):

zpool create tank mirror /dev/sdb /dev/sdc

This creates a pool named tank using a two-disk mirror. The pool name tank is used throughout this documentation.

Verify the pool was created:

zpool status tank

Create datasets#

Create separate datasets for media and downloads. Datasets give you finer control over compression, snapshots, and quotas later.

zfs create tank/media
zfs create tank/media/movies
zfs create tank/media/tv
zfs create tank/media/downloads

Verify:

zfs list

You should see:

NAME                   USED  AVAIL  REFER  MOUNTPOINT
tank                   ...   ...    ...    /tank
tank/media             ...   ...    ...    /tank/media
tank/media/movies      ...   ...    ...    /tank/media/movies
tank/media/tv          ...   ...    ...    /tank/media/tv
tank/media/downloads   ...   ...    ...    /tank/media/downloads

Enable compression#

ZFS compression is transparent and effectively free on modern hardware. Enable it on all datasets:

zfs set compression=lz4 tank/media

This applies to all child datasets automatically.

Set ownership#

Set the correct ownership so that the Plex LXC and Docker VM (both running as UID/GID 1000) can write to these paths:

chown -R 1000:1000 /tank/media

Result#

Storage is ready:

• /tank/media/movies — final movie library
• /tank/media/tv — final TV library
• /tank/media/downloads — download staging area

Continue to Mount Storage into LXC & VM.