Cluster storage default configuration

[Virt]

What method is used to share storage once a host is joined to a new cluster? I've been looking for some sort of config file but haven't been able to find any information about it. Does it use the Corosync network?

 

[sb-jw]

Could exactly explain what you want to know? Corosync is used for the Cluster itself, but what you mean with Storage?

 

[Virt]

When joining a new host, the data stores on the other host(s) become available. I'm trying to figure out how this is setup. I assumed it was NFS but the folders don't show up as mounts, they show up as local folders.

 

[LnxBil]

When joining a new host, the data stores on the other host(s) become available. I'm trying to figure out how this is setup. I assumed it was NFS but the folders don't show up as mounts, they show up as local folders.

There is no automatic way. You have to do it yourself.

For clusters with distributed shared storage (each box has its own storage), one normally uses CEPH or glusterfs

https://pve.proxmox.com/wiki/Ceph_Server
https://pve.proxmox.com/wiki/Storage:_GlusterFS

 

[Virt]

Somehow I'm able to access the other host under /mnt
I haven't manually mounted anything, the shares showed up after joining the host to the cluster.

 

[Virt]

After further investigation it seems Proxmox just replicated parts of the directory structure to /mnt based on the storage.cfg from the other server. This is confusing behavior to say the least.

 

[LnxBil]

This is confusing behavior to say the least.

No, it's the default. Every storage you create on PVE also created the default directory structure as it is described in the documentation.