ghusson's latest activity
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ghusson replied to the thread CEPH stretched cluster : PVE partition is not the same as the CEPH partition !.Indeed. But this situation should not happen. If a node is fenced, having CEPH out of order is OK for me. The problem on the point you mention is that CEPH OSDs didn't start after cluster rejoin. -
ghusson replied to the thread CEPH stretched cluster : PVE partition is not the same as the CEPH partition !.And here the case with same cluster partition on the two DCs: ======================================================================== ========================================================================...
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ghusson posted the thread CEPH stretched cluster : PVE partition is not the same as the CEPH partition ! in Proxmox VE: Installation and configuration.Hello, With Damien BROCHARD (Ozerim), we made some extensive CEPH tests in lab. Our running and functional lab : we configured a simulation of 2 DC cluster, with CEPH stretched cluster mode and a 3rd DC of only one PVE as tie breaker (CEPH) /...
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ghusson posted the thread CEPH stretched cluster : impossible to add a monitor in Proxmox VE: Installation and configuration.Hello, With Damien BROCHARD (Ozerim), we made some extensive CEPH tests in lab. As I thought we cannot add a new CEPH monitor in proxmox after stretched cluster mode has been enabled : root@training2-vsrv2:~# pveceph mon destroy 400 not enough...
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ghusson replied to the thread [SOLVED] Ghost monitor in CEPH cluster.Hello. Is your CEPH cluster in stretched cluster mode ?
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ghusson replied to the thread Proxmox cluster duel DC and shared storage.Best practice is to add a Promxox node which will provide Ceph tie breaker and a Proxmox quorum vote.
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ghusson reacted to Gilou's post in the thread Ceph Stretch cluster - Crush rules assistance with
Like.
I missed the reply, but.. I was indeed pinpointing the issue that could happen without the stretch mode enabled, as it was suggested as a workaround.. But yeah. -
ghusson replied to the thread Ceph Stretch cluster - Crush rules assistance.Hello, this question is answered in the documentation. https://docs.ceph.com/en/squid/rados/operations/stretch-mode/ : When stretch mode is enabled, PGs will become active only when they peer across CRUSH datacenter``s (or across whichever CRUSH...