Directory as mountpoint in cluster storage - size incorrect on other nodes

[voarsh]

I added a mountpoint as a directory to be shared with other nodes.




On the machine it is attached on I can see the true size:

However, on other nodes it is incorrect:

(it's actually showing the same size as local (pve)

What's going on here? What am I missing?

Is this the answer? https://forum.proxmox.com/threads/unable-to-share-directory-between-two-nodes.31162/
Setup NFS-Server?

 

[Stefan_R]

Is this the answer? https://forum.proxmox.com/threads/unable-to-share-directory-between-two-nodes.31162/

Well yes, the answer is the answer: the "shared" flag does not share something, but it indicates to proxmox that the storage is already shared between the nodes

You need some sort of clustered file system to actually "share" the data between nodes, the flag only says "expect shared data under this path on all nodes", the other nodes then check their version of the path, but nothing is mounted, so they display the size of the local root disk.

 

[voarsh]

Well yes, the answer is the answer: the "shared" flag does not share something, but it indicates to proxmox that the storage is already shared between the nodes

You need some sort of clustered file system to actually "share" the data between nodes, the flag only says "expect shared data under this path on all nodes", the other nodes then check their version of the path, but nothing is mounted, so they display the size of the local root disk.

Correct, I managed to get NFS sharing working.

It's a bit tempermental though and I often need to restart nodes.
And it seems everytime I need to run on startup to share to other nodes?:

exportfs -a && systemctl restart nfs-kernel-server

Any idea why? Have I failed to create a service that executes this?

 

[Stefan_R]

Did you enable the services? (i.e. systemctl enable nfs-kernel-server) What does systemctl status nfs-kernel-server print after boot?

NFS can certainly be a bit shaky from time to time...