On 3/25/20 10:24 AM, Simon Oosthoek wrote: > On 25/03/2020 10:10, konstantin.ilyasov@xxxxxxxxxxxxxx wrote: >> That is why i am asking that question about upgrade instruction. >> I really don`t understand, how to upgrade/reinstall CentOS 7 to 8 without affecting the work of cluster. >> As i know, this process is easier on Debian, but we deployed our cluster Nautilus on CentOS because there weren`t any packages for 14.x for Debian Stretch (9) or Buster(10). >> P.s.: if this is even possible, i would like to know how to upgrade servers with CentOs7 + ceph 14.2.8 to Debian 10 with ceph 15.2.0 (we have servers with OSD only and 3 servers with Mon/Mgr/Mds) >> _______________________________________________ >> ceph-users mailing list -- ceph-users@xxxxxxx >> To unsubscribe send an email to ceph-users-leave@xxxxxxx >> > > I guess you could upgrade each node one by one. So upgrade/reinstall the > OS, install Ceph 15 and re-initialise the OSDs if necessary. Though it > would be nice if there was a way to re-integrate the OSDs from the > previous installation... > That works just fine. You can re-install the host OS and have ceph-volume scan all the volumes. The OSDs should then just come back. Or you can take the even safer route by removing OSDs completely from the cluster and wiping a box. Did this recently with a customer. In the meantime they took the oppertunity to also flash the firmware of all the components and the machines came back again with a complete fresh installation. > Personally, I'm planning to wait for a while to upgrade to Ceph 15, not > in the least because it's not convenient to do stuff like OS upgrades > from home ;-) > > Currently we're running ubuntu 18.04 on the ceph nodes, I'd like to > upgrade to ubuntu 20.04 and then to ceph 15. > I think many people will do this. I wouldn't run 15.2.0 on my production environment right away. Wido > Cheers > > /Simon > _______________________________________________ > 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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