iSeries Navigator cluster management

IBM^® offers a cluster management interface that is available through iSeries™ Navigator and accessible through Option 41 (i5/OS™ - HA Switchable Resources).

This interface allows you to create and manage a cluster that uses switchable independent disk pools (switchable independent ASPs) to ensure data availability. It also allows you to create and manage clusters, CRGs, cluster administrative domains, and resources.

Important: The iSeries Navigator cluster management interface does not contain all of the capabilities provided by cluster resource services. While iSeries Navigator provides many functions necessary to configure and manage a cluster, be aware that there are some capabilities that are only available through the cluster commands and APIs, or perhaps through a cluster middleware IBM Business Partner application, depending on the particular application. For example, the iSeries clustering architecture supports up to 128 nodes in a cluster, however the iSeries Navigator interface only supports up to four nodes in a cluster. iSeries Navigator cluster management features a wizard which steps you through the creation of a simple, four-node cluster. If your clustering needs exceed this, you should consider using the IBM cluster commands and APIs or cluster middleware IBM Business Partner products.

You can also use iSeries Navigator to perform other cluster-related tasks. Some of these tasks include:

• Adding a node to an existing cluster
• Adding a switchable devices to a cluster
• Adding a switchable applications to a cluster
• Adding a switchable data group to a cluster
• Change the role of nodes in the recovery domain
• Changing the cluster description
• Deleting a cluster
• Starting clustering
• Stopping clustering
• Viewing messages about cluster activity
• Creating a cluster administrative domain
• Adding a monitored resource entry

For a complete list cluster-related tasks that are available in iSeries Navigator, see the online help for clusters.