Protocol not supported

[ixproxmox]

Without doing anything, all backups to a nfs mount have just stopped. It had been running for months.

I can access the nfs mont from shell and I can see all the backups done up until now when I navigate to the mounted folder.

In the web GUI, it says this:

"TASK ERROR: could not get storage information for 'fileserver-backup': storage 'filserver-backup' is not online "

In the shell GUI, when doing a df, I get this:

"df: /mnt/pve/fileserver-backup: Protocol not supported"

The fileserver is a qnap-nas device. Could it be some kind of auto-update that has changed nfs-versions or anything? Or a method to re-activate the connection?

 

[oguz]

hi,

can you try mounting it manually: mount -v -t nfs yourserver:/your/mount /path/to/local/mount

also what does rpcinfo -p ip.of.your.nfs return

 

[ixproxmox]

RPC: Remote system error - No route to host

mount.nfs: trying text-based options 'vers=4.2,addr=XX,clientaddr=XX'
mount.nfs: mount(2): Device or resource busy

I only run nfs 4 on the Qnap.

At same time, I can ping and I am connected to the same network with a smb-mount/windows-computer. No firewall or vlan.

 

[oguz]

IIRC nfsv4 doesn't play nice if dns isn't setup correctly. maybe you can try adding an entry for it in your /etc/hosts file and try again?

 

[ixproxmox]

I can access the qnap nfs server through Windows, but none of the ProxMox respond at all. I have tried to only enable nfs3 and tried upgrading the qnap to latest firmware and everything. Now I have both nfs3 and nfs4 active. I have no clue what is going on. I can ping the qnap from both ProxMox, so connection is there.

Both proxmox servers are upgraded to latest version and it was after this that problem started. When I try to use the GUI to add the nfs storage, it just spins and not returning any shares. This is really weird. On the qnap end, it doesn't even show any connections from proxmox-host machines on nfs-port.

Running this mount command works just fine from shell:
root@px1:~# mount -t nfs IP:test123 /testdir/

But none of my current mounting or adding from GUI (even a new NFS-mount) on either of my two proxmox machines works. Running 5.3.18-3-pve and Proxmox 6.1-8.

Update: I have gone over to using cifs instead and it worked right away against same storage, so using that for now instead.