Local disks across cluster and their mount points

[mo_]

Hi,

I got a little confused about which would be the correct way to set up the storage and wanted to ask for the proper way to do it.

Situation: Cluster with (currently) 2 active nodes, no HA. both have temporary local raid1 devices for VM storage.

How do I correctly add these two storage devices to proxmox? This is the part of the storage.cfg

dir: RAID1
        path /RAID1
        content images,iso,vztmpl,rootdir,backup
        maxfiles 3
        nodes ox2

dir: RAIDOX1
        path /RAID1
        content images,iso,vztmpl,rootdir,backup
        maxfiles 3
        nodes ox1

Now as you can see both have the same mount point on their respective node because otherwise it would be impossible to migrate between the two nodes (since the VE_ROOT path in the ct config remains unchanged)

However, if I now add a container to ox1 and select RAIDOX1 as storage, the CT is created just fine. BUT afterwards under Options, proxmox reports Storage: RAID1, which leads me to believe that this "Storage" value is created in reverse by looking at the VE_ROOT path in the ct config? The result is that I cant start the new CT (which created just fine) because proxmox correctly reports that the storage "RAID1" is not available on ox1.

Whats the correct approach here?

I guess I could technically set both storages to be available on both nodes, but that could lead to confusion and might possibly be unsafe too...?

 

[dietmar]

Now as you can see both have the same mount point on their respective node because otherwise it would be impossible to migrate between the two nodes (since the VE_ROOT path in the ct config remains unchanged)

Why - what is the problem? Normally you just define the RAID1 storage.

 

[mo_]

It was my understanding that you cannot migrate containers from say /x/vz/root on node1 to /y/vz/root/ on node2 since the path is "hardcoded" into the /etc/pve/openvz/$CTID.conf

You are suggesting only having one storage in proxmox mounted as /RAID1/, "available" to both nodes even though both folders on both nodes have different VMs in them? does that not cause problems?

 

[dietmar]

You are suggesting only having one storage in proxmox mounted as /RAID1/, "available" to both nodes even though both folders on both nodes have different VMs in them? does that not cause problems?

Why? I suggest you simply try.

 

[mo_]

sound suggestion, seems to work. its just a temporary disaster recovery but still...