Proxmox and iSCSI

[guruevi]

Yes. nconnect 4-16 gives more data paths so you get greater parallelism even on a single link, you should be able to saturate 10G with NFS, hell, I saturate 100G with NVMe storage.

 

[bbgeek17]

Looks like the conversation has moved into a bit of a different direction, which is completely fine. I wanted to address a few points for posterity.

was going to introduce this later as I’m waiting on another switch and additional power to the rack to be installed.

It is advisable to start with a multipath device if you anticipate moving to that type of configuration. This way you won't have to make any adjustments from /dev/sdX to /dev/mpathX later.

The issue I had was trying to move the VM’s to another PVE, it actually wiped the data from the LVM, though it may have been thin provisioned.

There is no question that it was thin provisioned.

I ran it on one host and it removed on all; is there another method to clear the metadata and do I have to run it on each host?

Follow the official guide or our KB article and pay particular attention whether the command needs to run on all nodes (rare) or on single designated node.

1./ Should I be using a single large LUN to install all VM's onto the same LUN, or should I be creating a LUN per VM?

Both approaches are valid. A single LUN has significantly less management overhead. With LUN per VM you would likely not be using LVM. You could, but I would not recommend it.

Because snapshots aren't available, what is the suggested backup method? is it manually going to the storage array (running ZFS/iSCSI) and doing the snapshot (i.e. zfs snapshot Vol1/Plex-OS@snapshot-2025-04-25)

You can either use PBS or vzdump (built-in PVE backup). Both use QEMU level snapshot (unrelated to storage snapshot) and provide point-in-time backup.

3./ The plugin I was looking at was https://github.com/TheGrandWazoo/freenas-proxmox , is this the one you mention became unsupported?

yes, https://forum.proxmox.com/threads/g...ve-5x-and-freenas-11.54611/page-3#post-766015

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[mir]

Keep in mind that just yesterday it was reported that one particular TrueNAS specific 3rd party plugin was no longer compatible with most recent TrueNAS version

What specific plugin do you refer to?

 

[bbgeek17]

What specific plugin do you refer to?

Please see the post just above yours - last entry

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[ghusson]

Hello. For shared LVM over iSCSI, you can inspire from : https://infohub.delltechnologies.co...ying-proxmox-virtual-environment-white-paper/

For speeding up NFS, be sure to tune network stack (TCP window size if NFS over TCP for example).
Some tuning links for example :
https://fasterdata.es.net/host-tuning/linux
https://cromwell-intl.com/open-source/performance-tuning/nfs.html

You can try SAMBA/CIFS proocol too.