You'll have to tell LVM about multi-path, otherwise LVM gets confused. But that should be the only thing Paul -- Paul Emmerich Looking for help with your Ceph cluster? Contact us at https://croit.io croit GmbH Freseniusstr. 31h 81247 München www.croit.io Tel: +49 89 1896585 90 On Fri, Nov 15, 2019 at 6:04 PM Mike Cave <mcave@xxxxxxx> wrote: > > Greetings all! > > > > I am looking at upgrading to Nautilus in the near future (currently on Mimic). We have a cluster built on 480 OSDs all using multipath and simple block devices. I see that the ceph-disk tool is now deprecated and the ceph-volume tool doesn’t do everything that ceph-disk did for simple devices (e.g. I’m unable to activate a new osd and set the location of wal/block.db, so far as I have been able to figure out). So for disk replacements going forward it could get ugly. > > > > We deploy/manage using Ceph Ansible. > > > > I’m okay with updating the OSDs to LVM and understand that it will require a full rebuild of each OSD. > > > > I was thinking of going OSD by OSD through the cluster until they are all completed. However, someone suggested doing an entire node at a time (that would be 20 OSDs at a time in this case). Is one method going to be better than the other? > > > > Also a question about setting-up LVM: given I’m using multipath devices, do I have to preconfigure the LVM devices before running the ansible plays or will ansible take care of the LVM setup (even though they are on multipath)? > > > > I would then do the upgrade to Nautilus from Mimic after all the OSDs were converted. > > > > I’m looking for opinions on best practices to complete this as I’d like to minimize impact to our clients. > > > > Cheers, > > Mike Cave > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
 |