Proxmox iscsi over zfs

FreeNAS

Enable iSCSI

• Services -> iSCSI

Create Dataset

• Storage -> Pool -> Select Pool ->

Prepare iSCSI

Create Portal if it doesn't already exist

• Sharing -> Block Shares (iSCSI) -> Portals -> ADD

• Create Target
• Sharing -> Block Shares (iSCSI) -> Targets -> ADD

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Proxmox

Lets create the SSH keys on the proxmox boxes. (The IP must match your iSCSI Portal IP)

You only need to create the keys on one node if they are clustered as the keys will replicate to the other nodes.

• portal_ip=192.168.1.1
• mkdir /etc/pve/priv/zfs
• ssh-keygen -f /etc/pve/priv/zfs/$portal_ip_id_rsa
• ssh-copy-id -i /etc/pve/priv/zfs/$portal_ip_id_rsa.pub root@$portal_ip

Make an SSH connection from every node to the iSCSI Portal IP

• ssh -i /etc/pve/priv/zfs/$portal_ip_id_rsa root@$portal_ip

Install the REST client on every node

• apt-get install librest-client-perl git

Download the patches on every proxmox node

• git clone https://github.com/TheGrandWazoo/freenas-proxmox

Install the patches on every proxmox node

• cd freenas-proxmox
• patch -b /usr/share/pve-manager/js/pvemanagerlib.js < pve-manager/js/pvemanagerlib.js.patch
• patch -b /usr/share/perl5/PVE/Storage/ZFSPlugin.pm < perl5/PVE/Storage/ZFSPlugin.pm.patch
• patch -b /usr/share/pve-docs/api-viewer/apidoc.js < pve-docs/api-viewer/apidoc.js.patch
• cp perl5/PVE/Storage/LunCmd/FreeNAS.pm /usr/share/perl5/PVE/Storage/LunCmd/FreeNAS.pm

Restart the PVE services

• systemctl restart pvedaemon
• systemctl restart pveproxy
• systemctl restart pvestatd

Logout from PVE webgui and clean the browser cache, and login again. Now FreeNAS-API should we available as a iSCSI provider

Create a iSCSI target on the FreeNAS box.

You dont need to create any extents as the FreeNAS-API plugin will do this automatically when the drive is created on the VM.

NOTE: If you followed this guide you already created your target

Setup ZFS Over iSCSI i Proxmox GUI. choose FreeNAS-API as provider.

ID: Whatever you want
Portal: iSCSI portal IP on the freenas box
Pool: Select your pool (eg: dagobert/VirtualMachines )
ZFS Block Size: 4k
Target: IQN on the FreeNAS box and target ID (eg: "qn.2005-10.org.freenas.ctl:proxmox")
API use SSL: Unchecked
API Username: root
API IPv4 Host: iSCSI portal IP on the freenas box
API Password: root password on freenas box
Thin provision and Write cache is optional

API after update

Note: A pve-manager upgrade will replace the patched files so i suggest you create a bash script and run it on every node after an upgrade.

I have a script in /root/freenas-proxmox folder that looks like this

patch -b /usr/share/pve-manager/js/pvemanagerlib.js < pve-manager/js/pvemanagerlib.js.patch patch -b /usr/share/perl5/PVE/Storage/ZFSPlugin.pm < perl5/PVE/Storage/ZFSPlugin.pm.patch patch -b /usr/share/pve-docs/api-viewer/apidoc.js < pve-docs/api-viewer/apidoc.js.patch

cp perl5/PVE/Storage/LunCmd/FreeNAS.pm /usr/share/perl5/PVE/Storage/LunCmd/FreeNAS.pm

systemctl restart pvedaemon systemctl restart pveproxy systemctl restart pvestatd