Hi, On Tue, Dec 17, 2024 at 12:48 PM Janne Johansson <icepic.dz@xxxxxxxxx> wrote: > > > Ceph version 18.2.4 reef (cephadm) > > Hello, > > We have a cluster running with 6 Ubuntu 20.04 servers and we would like to add another host but with Ubuntu 22.04, will we have any problems? > > We would like to add new HOST with Ubuntu 22.04 and deactivate the Ubuntu 20.04 ones, our idea would be to update the hosts from Ubuntu 20.04 to 22.04. > > If anyone can give us some guidance, thank you very much. > > If the new host uses the same ceph version, it will be fine. It seems that mixing different versions also seems to work, at least on a small scale, light load, non-intensive app. I mixed up pacific and reef, on Ubuntu 22.04, 24.04 and Debian Stable. Nothing in the Ceph documentation says "don't do this". I did experience some file corruption, but I don't know if I can blame Ceph for that. FWIW, I think I used a Ceph config far outside the norm of conventional use: it mixed OS'es, it mixed Ceph releases, and it (initially) had one mon, one host and 2 OSD's and a week later three mons, two hosts, 4 OSD's, and later still three hosts and 6 OSD's and through-out this extended upgrade period, I was copying files into Ceph. I'm 99% sure that no one in the Ceph testing community tests setups like this, so maybe there's a bug. But I'm also using consumer-grade h/w so maybe the h/w is to blame. Cosmic rays, you know. -- Linas -- Patrick: Are they laughing at us? Sponge Bob: No, Patrick, they are laughing next to us. _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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