[ceph-users] Re: Re-install host OS on Ceph OSD node

2022-10-19 Thread Michel Jouvin
Hi, Eugen is right, no need to drain and readd your OSDs, this will be very long and lead to a lot of unnecessary load balancing. You should decouple replacing the failed OSD (where you should try to drain it, after setting its primary-affinity to 0 to limit the I/O redirected to it, and read

[ceph-users] Re: Re-install host OS on Ceph OSD node

2022-10-19 Thread Eugen Block
Hi, there's no need to drain the OSDs before adding them back. Since ceph-volume is in place you could scan and activate existing OSDs on a reinstalled node. In cephadm there's a similar way [1]: ceph cephadm osd activate ... If you want to prevent the OSDs from being marked out you can ru