ZFS is an awesome filesystem. It offers snapshots, data integrity features, automatic data repair and RAID. It’s amazing. This blog post is written because I run a Proxmox cluster and I had to share a ZFS datastore within the cluster. I do not have a proper ‘shared storage’ solution, so I share the RAIDz1 pool with NFS from one Proxmox host to the other(s).
To create a ZFS datastore and share it by NFS run the following commands.
1: Create a datastore on your pool and install nfs-kernel-server
zfs create bigstor/backup
apt install nfs-kernel-server
2: If desired, set a quota to limit the size of the datastore
zfs set quota=2T bigstor/backup
3: Now share the datastore via NFS. ZFS offers a built-in feature to do this directly without doing NFS exports in config files.
zfs set sharenfs="firstname.lastname@example.org/24,subtree_check,no_root_squash" bigstor/backup
Edit the above line to reflect your situation. You can specify a single IP-address if you want to (e.g. 192.168.1.5, add more IP’s seperated by comma’s).