Existing ZFS Pool to VM (FreeNAS)

[phcreery]

I have found 3 ways to get a ZFS pool to a Proxmox VM (FreeNAS). I was wondering which is the best?

1. ZFS over SCSI
   • Could I import my existing ZFS pool or do I have to create a new one?
   • Would I have to use this? https://github.com/TheGrandWazoo/freenas-proxmox
2. Virtual Disk
   • https://pve.proxmox.com/wiki/Physical_disk_to_kvm
   • https://forum.proxmox.com/threads/passing-a-volume-zfs-pool-through-to-a-vm.36026/
   • Would I have to do anything other than just export the pool in Proxmox and then import them in FreeNAS?
3. PCI Pass-through
   • FreeNAS Recommended
   • I have 1 PCI RAID controller with 6 disks on it but I just want 1 disk to be passed through. Will I be able to pass through just one disk? Or could I pass through all even though Proxmox itself is installed on a disk on that same RAID controller?

Which one will be the fastest? I already have a large pool of data and would like to keep it. (I do have a back up of all of it)
I know this is a lot of questions but your feedback will be greatly appreciated.

 

[wolfgang]

Hi,
1.) This is not ZFS on the Proxmox VE host.
On PVE you just have a LUN and with this plugin, you are capable to create snapshots on the FreeNas side.

2 and 3 are as far as I understand the same.
You what passthrough a disk.
PCI Passthrough works only with PCI devices so if your Disk is an NVMEe PCIe device you can use this mode.
The performance of a pass-through disk is the same as a vdisk. because in the end, the SW layer is the bottleneck.