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ZFS over iSCSI for Proxmox and FreeNAS

Updated: still using GrandWazoo’s FreeNAS ZFS over iSCSI plugin on TrueNAS 12.0-U4.1 and Proxmox 6.4-13. I’m pretty sure I read in the issues section on Github that it works with Proxmox 7, maybe someday soon I’ll give it a try. They have updated it so you won’t need to run the patch commands again after a kernel upgrade. If you’re using the plugin donate a little to GrandWazoo for doing god’s work.

I just setup a Proxmox cluster. I had to install the GrandWazoo plugin again on the second node, and i think some steps may have changed since i had to stumble through it.

Go to if you’re not already there.

SSH into your Proxmox host to setup the FreeNAS SSH key and install the plugin. This is assuming your FreeNAS IP is

First run:

mkdir /etc/pve/priv/zfs

ssh-keygen -f /etc/pve/priv/zfs/

ssh-copy-id -i /etc/pve/priv/zfs/ [email protected]

ssh -i /etc/pve/priv/zfs/ [email protected]

You you get the output below, just type yes.

The authenticity of host ' (' can't be established.
RSA key fingerprint is 8c:f9:46:5e:40:65:b4:91:be:41:a0:25:ef:7f:80:5f.
Are you sure you want to continue connecting (yes/no)? yes

Then run:

apt-get install librest-client-perl git

git clone

This is where the steps’ll see this freenas-proxmox folder, all the files you need are in there.

ZFS over iSCSI for Proxmox and FreeNAS

You’ll need to cd into freenas-proxmox then into pve-manager/js/ before running:

patch -b /usr/share/pve-manager/js/pvemanagerlib.js < pvemanagerlib.js.patch

The same with the other directories, you’ll need to be in freenas-proxmox/perl5/PVE/Storage and pve-docs/api-viewer/ before running:

patch -b /usr/share/perl5/PVE/Storage/ <

patch -b /usr/share/pve-docs/api-viewer/apidoc.js < apidoc.js.patch

This 4th step is also like that, you’ll need to change directories to /freenas-proxmox/perl5/PVE/Storage/LunCmd before running:

ZFS over iSCSI for Proxmox and FreeNAS
cp /usr/share/perl5/PVE/Storage/LunCmd/

Now after a restart of the services or a reboot, you should have FreeNAS to pick from in the drop down.

ZFS over iSCSI for Proxmox and FreeNAS

Since I already had this setup on my first node, when i added the new node to the cluster it carried over the ZFS over iSCSI settings, then i could just magically migrate VMs to the new node.

Thank you to the GrandWazoo for making this plugin!