Hi all, Our cluster has to change to new IP range in same VLAN: 10.0.7.0/24 -> 10.0.18.0/23, while IP address on private network for OSDs remains unchanged. I wonder if we can do that in either one following ways:
===================== 1. a. Define static route for 10.0.18.0/23 on each node b. Do it one by one: For each monitor/mgr: - remove from cluster - change IP address - add static route to original IP range 10.0.7.0/24 - delete static route for 10.0.18.0/23 - add back to cluster For each OSD: - stop OSD daemons - change IP address - add static route to original IP range 10.0.7.0/24 - delete static route for 10.0.18.0/23 - start OSD daemons c. Clean up all static routes defined. 2. a. Export and update monmap using the messy way as described in http://docs.ceph.com/docs/mimic/rados/operations/add-or-rm-mons/ ceph mon getmap -o {tmp}/{filename} monmaptool -rm node1 -rm node2 ... --rm node n {tmp}/{filename} monmaptool -add node1 v2:10.0.18.1:3330,v1:10.0.18.1:6789 -add node2 v2:10.0.18.2:3330,v1:10.0.18.2:6789 ... --add nodeN v2:10.0.18.N:3330,v1:10.0.18.N:6789 {tmp}/{filename} b. stop entire cluster daemons and change IP addresses c. For each mon node: ceph-mon -I {mon-id} -inject-monmap {tmp}/{filename} d. Restart cluster daemons. 3. Or any better method... ===================== Would anyone please help? Thanks a lot. Rgds /st wong
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