Oracle® Solaris Cluster Geographic Edition System Administration Guide

Exit Print View

Updated: July 2014, E39667-01

How to Rename a Cluster That Is in a Partnership

This procedure demonstrates how to rename one of the global clusters that is in a partnership. You can rename more than one of the clusters at the same time.

Note -  You cannot use this procedure to rename a zone cluster in a partnership.

If the cluster that you rename belongs to more than one partnership, perform each step on all clusters that share a partnership with the cluster to rename, before you proceed to the next step in the procedure.

  1. From one node of the cluster that you are renaming, remove resource groups from each protection group that the cluster belongs to.

    This task avoids production application downtime.

    # geopg remove-resource-group application-resource-group protection-group
  2. From one node of each cluster in a protection group, confirm that application resource groups have been removed.
    # geopg list protection-group
  3. From one node of the cluster that you are renaming, stop each protection group globally.

    This task stops data replication.

    # geopg stop protection-group -e global
  4. From one node of each cluster in a protection group, delete the protection group.
    # geopg delete protection-group
  5. From one node of each cluster in a partnership, leave the partnership.
    # geops leave-partnership partnership
  6. From one node of each cluster, confirm that the protection group and the partnership have been removed.
    # geoadm status
  7. From one node of each cluster, disable Geographic Edition software.
    # geoadm stop
  8. From one node of each cluster, confirm that Geographic Edition software was disabled.

    Verify that the geo-infrastructure, geo-clusterstate, and data-replication resource groups are deleted.

    # clrg list
    # geoadm status
  9. From one node of the cluster that you are renaming, change the cluster name.

    Follow cluster naming guidelines as described in Planning Required IP Addresses and Hostnames in Oracle Solaris Cluster Geographic Edition Installation and Configuration Guide .

    # cluster rename -c new-cluster-name

    Note -  The name of the cluster must not include the domain. If a partnership contains clusters that are in different domains, you specify the domain to administrative commands, when necessary, by appending the domain name to the cluster name as cluster.domain. Only certain Geographic Edition administrative commands require this fully qualified name when clusters in a partnership are not in the same domain.
  10. Confirm that the cluster name is changed.
    # cluster list
  11. On each node of both clusters, ensure that hostname entries that match the new cluster name are free and are added to the local /etc/inet/hosts files.

    If clusters in the partnership are in different domains, include the domain in the /etc/hosts entry for each cluster.

    # ping new-cluster
    There should be no response
    # echo "IP-address new-cluster" >> /etc/inet/hosts
  12. From one node of each cluster, start Geographic Edition software.
    # geoadm start

    If Geographic Edition software fails to start, and the failure is not due to problems with the new logical host, restart the common agent container on all nodes by using the cacaoadm restart command, then start Geographic Edition software.

  13. From one node of each cluster, verify that Geographic Edition software is successfully started.
    # geoadm status
  14. From one node of each cluster, add trust between the clusters.
    # geops add-trust -c remote-partner-cluster[.domain-name]
  15. From one node of each cluster, confirm that trust is added successfully.

    Note -  Do not specify a domain name to the verify-trust subcommand.
    # geops verify-trust -c remote-partner-cluster
  16. Create and join a new partnership between the clusters.
    1. From the primary cluster, create the partnership.
      # geops create -c remote-partner-cluster[.domain-name] partnership
    2. From the secondary cluster, join the partnership.
      # geops join-partnership remote-partner-cluster[.domain-name] partnership
  17. On each cluster, confirm that the new partnership is successfully created and joined.
    # geoadm status
  18. If you did not reboot the nodes of the cluster that you renamed, restart the heartbeats on each node of the renamed cluster.

    Restarting the heartbeat initiates the heartbeat to read and store the new cluster name.

    # svcadm disable svc:/system/cluster/gchb_resd:default
    # svcadm enable svc:/system/cluster/gchb_resd:default
Example 5-2  Renaming a Cluster in a Partnership

This example renames the cluster newyork, in the paris-newyork-ps partnership, to chicago. The names of the nodes in this cluster are not changed, so phys-newyork-1 becomes a node in the newly named chicago cluster. The paris-newyork-ps partnership is first unconfigured. After the cluster is renamed, a new paris-chicago-ps partnership is created with the chicago cluster as primary and the paris cluster as secondary. The two clusters belong to the same domain, so the domain name is not specified to the commands.

phys-newyork-1# geopg remove-resource-group app-rg

phys-newyork-1# geopg list examplepg
phys-paris-1# geopg list examplepg

phys-newyork-1# geopg stop examplepg -e global

phys-newyork-1# geopg delete examplepg
phys-paris-1# geopg delete examplepg

phys-newyork-1# geops leave-partnership paris-newyork-ps
phys-paris-1# geops leave-partnership paris-newyork-ps

phys-newyork-1# geoadm stop
phys-paris-1# geoadm stop

phys-newyork-1# clrg list
phys-newyork-1# geoadm status
phys-paris-1# clrg list
phys-paris-1# geoadm status

phys-newyork-1# cluster rename -c chicago
phys-newyork-1# cluster list

phys-newyork-1# ping chicago
phys-newyork-1# echo " chicago" >> /etc/hosts
repeat on each node of the chicago cluster

phys-paris-1# ping chicago
phys-paris-1# echo " chicago" >> /etc/hosts
repeat on each node of the paris cluster

phys-newyork-1# geoadm start
phys-paris-1# geoadm start

phys-newyork-1# geoadm status
phys-paris-1# geoadm status

phys-newyork-1# geops add-trust -c paris
phys-paris-1# geops add-trust -c chicago

phys-newyork-1# geops verify-trust -c paris
phys-paris-1# geops verify-trust -c chicago

phys-newyork-1# geops create -c paris paris-chicago-ps
phys-paris-1# geops join-partnership chicago paris-chicago-ps

phys-newyork-1# geoadm status
phys-paris-1# geoadm status

phys-newyork-1# /etc/init.d/initgchb_resd stop
phys-newyork-1# /etc/init.d/initgchb_resd start
repeat on each node of the chicago cluster

phys-paris-1# svcadm disable svc:/system/cluster/gchb_resd:default
phys-paris-1# svcadm enable svc:/system/cluster/gchb_resd:default
repeat on each node of the paris cluster

Next Steps

Perform the following tasks:

  • Create a new protection group and replicate it to partner.

  • Add device groups.

  • Start globally.

  • Add resource groups to the protection group and verify the configuration.

Note -  When you create the new protection group, pay close attention to which cluster is the primary and which is the secondary, to ensure that data replication is started in the desired direction.

Follow procedures in the appropriate Geographic Edition data-replication guide.