Den tis 10 juni 2025 kl 13:27 skrev Mahdi Noorbala <noorbala7...@gmail.com>: > > Where? On the netplan config on all ceph nodes (mon, mgr, osd)
If this network is listed in the public/private network config settings for ceph, then I would make sure it gets added there too and not just on the interface config for the machines, since it will probably work fine as long as all cluster parts are inside the old smaller sized network, but the first one to be in the newly added part may fail to start for not finding an interface in the public/private network range. > Maybe is there any interruption in client connection due to change netmask? No, should not be, but that depends more on how "netplan apply" does interface config changes. Even so, doing one daemon at a time should work out fine even if netplan would do a total teardown and setup the interface from scratch again. I don't think it does, but as long as you do one daemon at a time, you would be able to handle even that situation. And you would know after the first test if that is so. (grab list of established tcps from "ss -ntp" and then change netplan, and check again) > On Tue, Jun 10, 2025, 14:38 Janne Johansson <icepic...@gmail.com> wrote: >> >> Den tis 10 juni 2025 kl 12:49 skrev Mahdi Noorbala <noorbala7...@gmail.com>: >> > Hello everybody >> > We have a ceph cluster in production. It's used for openstack as rbd image. >> > Now we want to change netmask from /22 to /21. >> >> Where? On the clients, on the cluster or the ceph.conf network configs or >> all? >> >> > What do you think? >> > Is there any problem in this change? >> > Is there any concern about this change? >> >> As long as all parts can reach eachother via layer-3 (ie, IP >> connectivity works) then you should be able to change netmask size as >> you like. >> You might want to restart daemons after changing ceph.conf, to make >> sure they work correctly after the change, since you would want to >> notice this now when you know the reason, and not 6 months later when >> you run an upgrade and can't remember what recently changed. >> >> >> -- >> May the most significant bit of your life be positive. -- May the most significant bit of your life be positive. _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
