Is it possible to recover CEPH when proxmox is dead ?

[bogdahn]

Hello,

Sorry, i'm frech, and i dont speack english fluently, so excuse me for my bad writting.
I was wondering if i could rebuild a CEPH clusters without having the original monitors/manager.
So i made a trying lab for testing it.
In this case, the OSD data is preserved.
I made this test simple : just formating proxmox and reinstall.
My goal is to recover the cluster.
But i dont know how to do it. LVM see the HDD as a CEPH OSD LVM

But i cant recreate the cluster, or even the attach the OSD to the new monitor/manager.
I cant find a procedure to recover from such a crash in the doc, did i missed it ?
Could you help me to understand ?
Thank you !

 

[gurubert]

You may be able to recover the cluster map and the monitor DB from copies stored on an OSD: https://docs.ceph.com/en/quincy/rados/troubleshooting/troubleshooting-mon/#monitor-store-failures

 

[bogdahn]

You may be able to recover the cluster map and the monitor DB from copies stored on an OSD: https://docs.ceph.com/en/quincy/rados/troubleshooting/troubleshooting-mon/#monitor-store-failures

Thank you very much, i dont know how i missed that :/

Thanks for the help !