12.4 Assigning Preferred Peer Clusters for the Resource

The cluster resource is configured on its primary cluster. Preferred peer clusters are the other clusters that a cluster resource can be migrated to in a business continuity cluster. You specify to the resource’s Assigned clusters list where the resource can be migrated. You can migrate a resource only to one of the clusters that has been selected.

When you add a new peer cluster (or remove a cluster and add it back in) to the business continuity cluster, the new cluster is automatically listed in the Not Assigned list for each of the existing cluster resources. You must manually assign the peer cluster to the Assigned list of preferred clusters for each of the cluster resources that you want to be able to fail over to it.

  1. In the Assigned list, specify the preferred peer clusters for fail over and their preferred failover order.

    Select a peer cluster, then click the left-arrow or right-arrow button to move it to the the Assigned list or Unassigned list. Select a peer cluster, then use the up-arrow and down-arrow buttons to change the preferred failover order of the peer clusters in the Assigned list.

    IMPORTANT:By default, the cluster resource can fail over to any node in the preferred peer cluster. That is, all nodes in a peer cluster appear on the Assigned Nodes list for that resource on that cluster.

  2. Do one of the following:

    Cluster Resource

    New or Existing

    Action

    Linux POSIX file system

    New

    Click Finish.

    Linux POSIX file system

    Existing

    Click Apply.

    NSS pool

    New

    Click Next, then add the storage management configuration information. For information, see Adding Storage Management Configuration Information.

    NSS pool

    Existing

    Add the storage management configuration information. For information, see Adding Storage Management Configuration Information.

  3. After the cluster resource information is synchronized to all of the peer clusters in the resource’s Assigned clusters list, you must specify your node preferences separately for each of the peer clusters. For information, see Section 12.5, Assigning Preferred Nodes in Peer Clusters.