Proxmox NFS setup

Swanand

New Member
Mar 26, 2026
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I am having two cluster with 4 node each and I am planning to mount the NFS for the VM user as well as for the backup of the vm is it stable?
Also my NFS and nodes are in same network .
as per my working on my cluster is getting stuck.
 
Could you share more details? what issue are you seeing?
backup stuck?

Like i have one cluster with the 4 nodes this nodes are in the subnet 192.168.180.0/24 and having the SAN in that created nfs which is in the same subnet
which is working fine and not even single machine is stucked and backup is also working fine as well as the communication between the node is also working very good .

In the same way there is another cluster with the 4 node in same subnet and also connected to the nfs but with the different datastore and then mounted to this cluster and in this vm is getting error systemed timeout backup is stucked and as well as randomly "?" is coming on to the node but i can do ssh but the storage pool as well as vm goes to "?".
 
Did you check journalctl log on the affected hosts during the observed issue time? maybe the connection to the nfs have some problem.
Also you could verify the storage status during the issue time with ~# pvesm status

Maybe also try setting Preallocation to 'off' in your NFS storage configuration [0] if not already used:
When using network storages in combination with large qcow2images, using off can help to avoid timeouts.
See section 7.2.2. Common Storage Properties [0] for more details.
You can set this from Datacenter Storage NFS storage Edit and use the drop-down bottom left to change it.

[0] https://pve.proxmox.com/pve-docs/pve-admin-guide.html#_common_storage_properties