I chatted with Mykola who helped me get the OSDs back up. My test cluster was on 16.2.5 (and still mostly is), after upgrading only the MGRs to a more recent version (16.2.10) the activate command worked successfully and the existing OSDs got back up. Not sure if that's a bug or something else, but which exact versions are you using? Zitat von Eugen Block <eblock@nde.ag>:
I found a small two-node cluster to test this on pacific, I can reproduce it. After reinstalling the host (VM) most of the other services are redeployed (mon, mgr, mds, crash), but not the OSDs. I will take a closer look.
Zitat von Tony Liu <tonyliu0592@hotmail.com>:
Tried [1] already, but got error. Created no osd(s) on host ceph-4; already created?
The error is from [2] in deploy_osd_daemons_for_existing_osds().
Not sure what's missing. Should OSD be removed, or removed with --replace, or untouched before host reinstallation?
[1] https://docs.ceph.com/en/pacific/cephadm/services/osd/#activate-existing-osd... [2] https://github.com/ceph/ceph/blob/0a5b3b373b8a5ba3081f1f110cec24d82299cac8/s...
Thanks! Tony ________________________________________ From: Tony Liu <tonyliu0592@hotmail.com> Sent: April 27, 2023 10:20 PM To: ceph-users@ceph.io; dev@ceph.io Subject: [ceph-users] import OSD after host OS reinstallation
Hi,
The cluster is with Pacific and deployed by cephadm on container. The case is to import OSDs after host OS reinstallation. All OSDs are SSD who has DB/WAL and data together. Did some research, but not able to find a working solution. Wondering if anyone has experiences in this? What needs to be done before host OS reinstallation and what's after?
Thanks! Tony _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io