Installation guide
4. To enable setting failover priority of the members in the failover domain, click the Prio rit iz ed
checkbox. With Prio rit iz ed checked, you can set the priority value, Prio rit y, for each node
selected as members of the failover domain.
5. To restrict failover to members in this failover domain, click the Rest rict ed checkbox. With
Rest rict ed checked, services assigned to this failover domain fail over only to nodes in this
failover domain.
6. To specify that a node does not fail back in this failover domain, click the No Failb ack
checkbox. With No Failb ack checked, if a service fails over from a preferred node, the
service does not fail back to the original node once it has recovered.
7. Configure members for this failover domain. Click the Member checkbox for each node that
is to be a member of the failover domain. If Prio rit iz ed is checked, set the priority in the
Prio rit y text box for each member of the failover domain.
8. Click C reate. This displays the Fai l o ver D o mai ns page with the newly-created failover
domain displayed. A message indicates that the new domain is being created. Refresh the
page for an updated status.
3.8.2. Modifying a Failover Domain
To modify a failover domain, follow the steps in this section.
1. From the cluster-specific page, you can configure Failover Domains for that cluster by
clicking on Failo ver Do main s along the top of the cluster display. This displays the failover
domains that have been configured for this cluster.
2. Click on the name of a failover domain. This displays the configuration page for that failover
domain.
3. To modify the Prio rit iz ed , Rest rict ed , or No Failb ack properties for the failover domain,
click or unclick the checkbox next to the property and click Update P ro perti es.
4. To modify the failover domain membership, click or unclick the checkbox next to the cluster
member. If the failover domain is prioritized, you can also modify the priority setting for the
cluster member. Click Upd ate Setti ng s.
3.8.3. Delet ing a Failover Domain
To delete a failover domain, follow the steps in this section.
1. From the cluster-specific page, you can configure Failover Domains for that cluster by
clicking on Failo ver Do main s along the top of the cluster display. This displays the failover
domains that have been configured for this cluster.
2. Select the checkbox for the failover domain to delete.
3. Click Delet e.
3.9. Configuring Global Clust er Resources
You can configure global resources that can be used by any service running in the cluster, and you
can configure resources that are available only to a specific service.
Chapt er 3. Configuring Red Hat Hig h Availabilit y Add- O n Wit h Conga
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