Ceph - add external osd node

[firefoxx04]

Hi, I have a 3 node cluster running proxmox with ceph. It works fine. I am curious if I can add additional hosts (for more OSD devices) that are not running proxmox?

For example:

pve-0: ceph mon, osd
pve-1: ceph mon, osd
pve-2: ceph mon, osd
fileserver-0: osd only
fileserver-1: osd only

As you can see, the proxmox hosts are monitors and osd nodes, while the silervers would simply be additional osd hosts.

Is this possible? thanks

 

[Alwin]

Technically it is possible but you will lose the eligibility for support.
https://www.proxmox.com/en/proxmox-ve/pricing

Aside from the above, you need to take care of using the same ceph packages and using proper hardware for ceph. Management of Ceph will also be different on those servers (eg. no PVE tools) and config changes need to be done manually.

Last but not least, why not just use Proxmox VE on those servers? They don't need to host VM/CT.

 

[firefoxx04]

Technically it is possible but you will lose the eligibility for support.
https://www.proxmox.com/en/proxmox-ve/pricing

Aside from the above, you need to take care of using the same ceph packages and using proper hardware for ceph. Management of Ceph will also be different on those servers (eg. no PVE tools) and config changes need to be done manually.

Last but not least, why not just use Proxmox VE on those servers? They don't need to host VM/CT.

Sure, I agree with your last statement. The problem with using PVE on those servers is that it forces me to use Debian, which is fine and fits my application.

Thank you

 

[nadeu]

Technically it is possible but you will lose the eligibility for support.
https://www.proxmox.com/en/proxmox-ve/pricing

Aside from the above, you need to take care of using the same ceph packages and using proper hardware for ceph. Management of Ceph will also be different on those servers (eg. no PVE tools) and config changes need to be done manually.

Last but not least, why not just use Proxmox VE on those servers? They don't need to host VM/CT.

What about this and quorum? What happens if Proxmox VE (OSD only node), go down? It takes in count in quorum?

BR,
Pau