Hey Peter, A simple ceph-volume lvm activate should get all of the OSDs back up and running once you install the proper packages/restore the ceph config file/etc., If the node was also a mon/mgr you can simply re-add those services. Regards, Bailey > -----Original Message----- > From: Peter van Heusden <pvh@xxxxxxxxxxx> > Sent: April 24, 2024 8:24 AM > To: ceph-users@xxxxxxx > Subject: Reconstructing an OSD server when the boot OS is > corrupted > > Dear Ceph Community > > We have 5 OSD servers running Ceph v15.2.17. The host operating system is > Ubuntu 20.04. > > One of the servers has suffered corruption to its boot operating system. > Using a system rescue disk it is possible to mount the root filesystem but it is > not possible to boot the operating system at the moment. > > The OSDs are configured with (spinning disk) data drives, WALs and DBs on > partitions of SSDs, but from my examination of the filesystem the > configuration in /var/lib/ceph appears to be corrupted. > > So my question is: what is the best option for repair going forward? Is it > possible to do a clean install of the operating system and scan the existing > drives in order to reconstruct the OSD configuration? > > Thank you, > Peter > P.S. the cause of the original corruption is likely due to an unplanned power > outage, an event that hopefully will not recur. > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email > to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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