You can upgrade straight from Mimic to Octopus without a full outage window. One thing to keep in mind that wasn't spelled out clearly in the docs (I thought): you will have to bounce all components twice to get the full benefits of MSGRv2. After you bounce everything in the correct order and run the require release and enable_msgrv2 command as per the docs, everything will still be running V1. You then need to bounce everything a second time to start leveraging V2. ceph -s or anything does not really indicate this, you need to look at which ports the components are listening on to see if they are making use of V2... You may also want to turn off the quick fsck/OMAP upgrade the first time you start the OSDs as they will take a bit longer to start when doing that, especially if the OMAPs are large. Also also, there were some bugs in versions as late as at least 15.2.12 that would would leave the OSDs in a bad state sometimes when using the threaded fsck and/or doing the OMAP upgrade at OSD startup, so in addition to turning it off on boot, I had run bluestore tool explicitly against the OSDs to perform the process while the OSDs were down. Indications are, I think, that the bugs mentioned above are fixed but YMMV... and as always, test before running against a live cluster and good luck. On Mon, Jan 31, 2022, 4:59 AM Eneko Lacunza <elacunza@xxxxxxxxx> wrote: > Hi Iban, > > El 31/1/22 a las 10:48, Iban Cabrillo escribió: > > Dear Cephers, > > We are planning the upgrade of out Ceph cluster, version Mimic 13.2.10. > (3Mons, 3MGRs, 181OSD, 2MSDs, 2 RGW) > > Cluster is healthy and all the pools are running size 3 min_size 2. > > This is an old cluster implementation that has been upgraded from > firefly (There are still a clouple OSDs under filestore about 8 small OSD). > > Then I have a couple of questions: > > - Can we update directly from mimic to Octopus or should bw step by step > ? > > > > - Can we maintain the filestore OSDs or is better to delete migrate this > OSDs? > > > > - MIgration order is MONs/MGRs, OSDs, MDS, RGW? > > > > - Can be the OSDs up during the migration? Should be all of them > restarted at the same time? > > > > I suggest you first check upgrade notes: > > For Nautilus: > > https://docs.ceph.com/en/latest/releases/nautilus/#upgrading-from-mimic-or-luminous > > For Octopus: > > https://docs.ceph.com/en/latest/releases/octopus/#upgrading-from-mimic-or-nautilus > > For Pacific: (not supported upgrading directly from Mimic) > > https://docs.ceph.com/en/latest/releases/pacific/#upgrading-from-octopus-or-nautilus > > Seems, you can upgrade first to Nautilus, then you can choose to upgrade > to Octopus or Pacific from there. > > Cheers > > Eneko Lacunza > Zuzendari teknikoa | Director técnico > Binovo IT Human Project > > Tel. +34 943 569 206 |https://www.binovo.es > Astigarragako Bidea, 2 - 2º izda. Oficina 10-11, 20180 Oiartzun > > https://www.youtube.com/user/CANALBINOVO > https://www.linkedin.com/company/37269706/ > _______________________________________________ > 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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