Verifying and synchronizing the standard configuration

Edit online

After all resource groups have been configured, verify the cluster configuration on all nodes to ensure compatibility. If no errors are found, the configuration is then copied (synchronized) to each node of the cluster. If you synchronize from a node where Cluster Services are running, one or more resources may change state when the configuration changes take effect.

About this task

At the beginning of verification, before PowerHA® SystemMirror® verifies the cluster topology, the Cluster Topology Summary is displayed listing any nodes, networks, network interfaces, and resource groups that are "unavailable" at the time that cluster verification is run. "Unavailable" refers to those that have failed and are considered offline by the Cluster Manager. These components are also listed in the /var/hacmp/clverify/clverify.log file.

PowerHA SystemMirror displays informational messages during the verification process. The first phase of verification involves collecting data from all the nodes in the cluster. Messages are displayed as collection completes on each node, and if a node is slow to respond, the amount of time passed since collection started is displayed.

The second phase of the process is the verification of the collected data. PowerHA SystemMirror display the progress of the verification checks in increments of 10 percent.

The output from the verification is displayed in the SMIT Command Status window. If you receive error messages, make the necessary changes and run the verification procedure again.

The output may take one of the following forms:

  • You may see warnings if the configuration has a limitation on its availability, for example, if only one interface per node per network is configured.
  • Although no summary will be displayed to the user when no cluster topology components have failed, the clverify.log file displays the following: 
    <DATE/TIME>  Verification detected that all cluster topology components are available.
  • If cluster components are unavailable, the utility providing the list of failed components puts similar information in the log file.

To verify and synchronize the cluster topology and resources configuration:

Procedure

  1. From the command line, enter smit sysmirror
  2. You can access the Verify and Synchronize Cluster Configuration dialog from many menu paths. This dialog is accessible from main menus that contain dialogs used to change the cluster configuration, such as under the Cluster Nodes and Networks menu or the Cluster Applications and Resources menu. The Verify and Synchronize Cluster Configuration (Advanced) dialog is located under the Custom Cluster Configuration menus.
  3. To use default options for verification and synchronization, press Enter.

    SMIT runs the verification utility.