If your monitor nodes are separate from the osd nodes, I'd get ceph upgraded to the latest point release of your current line (0.94.7). Upgrade monitors, then osds, then other dependent services (mds, rgw, qemu). Once everything is happy again, I'd run OS and ceph upgrades together, starting with monitors, then osds, and (again) dependent services. Keep in mind, that you'll want to chown all of the ceph data in there while you're doing this (per the upgrade notes). If they're combined, I'd probably upgrade ceph, then the OS. First from 0.94.5 to 0.94.7, then to Jewel, then I'd upgrade the OS version. Standard order still applies, monitors->osds->dependent services. -- Adam On Sun, Jun 5, 2016 at 6:47 PM, Sebastian Köhler <sk@xxxxxxxxx> wrote: > Hi, > > we are running a cluster with 6 storage nodes(72 osds) and 3 monitors. > The osds and and monitors are running on Ubuntu 14.04 and with ceph 0.94.5. > We want to upgrade the cluster to Jewel and at the same time the OS to > Ubuntu 16.04. What would be the best way to this? First to upgrade the > OS and then ceph to 0.94.7 followed by 10.2.1. Or should we first > upgrade Ceph and then Ubuntu? Or maybe doing it all at once? > > Regards > Sebastian > > > _______________________________________________ > 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