Honestly I think taking all the daemons down will be more disruptive than just staging the optics / cables and doing a hot-swap, which should take like 5 seconds. ymmv.
> On Nov 21, 2025, at 2:38 AM, Robert Sander <[email protected]> > wrote: > > Hi, > > Am 21.11.25 um 5:11 AM schrieb gagan tiwari: > >> We are getting an increasing number of RX errors on the >> ports on some of the nodes in the cluster including mon , mds and osd >> nodes >> In an attempt to fix it , we plan to replace SFPs / cables on these nodes. >> I think I will need to temp remove those nodes one by one from >> the cluster and replace the network cables / SFPs and add them back to >> cluster >> So, plz let me know the best / safest way to proceed. > > With the cephadm orchestrator you can use > > ceph orch host maintenance enter HOSTNAME > > do your stuff > > ceph orch host maintenance exit HOSTNAME > > for each host in a row. > > Without the orchestrator you can use > > ceph osd set-group noout HOSTNAME > > do your stuff > > ceph osd unset-group noout HOSTNAME > > for each host. > > But never two hosts at the same time. > > > Regards > -- > Robert Sander > Linux Consultant > > Heinlein Consulting GmbH > Schwedter Str. 8/9b, 10119 Berlin > > https://www.heinlein-support.de > > Tel: +49 30 405051 - 0 > Fax: +49 30 405051 - 19 > > Amtsgericht Berlin-Charlottenburg - HRB 220009 B > Geschäftsführer: Peer Heinlein - Sitz: Berlin > _______________________________________________ > ceph-users mailing list -- [email protected] > To unsubscribe send an email to [email protected] _______________________________________________ ceph-users mailing list -- [email protected] To unsubscribe send an email to [email protected]
