Enabling fault management for a Virtual Business Service
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Enabling fault management for a Virtual Business Service

The fault management feature further extends VBS Availability Add-on's capabilities of fault handling in a multi-tier application environment. In a Virtual Business Service, one of the three types of dependencies can exist among the parent and its child service groups. The dependencies are soft, firm, and restart. They determine a tier's configurable reaction to the lower tier event, and control fault propagation.

For example, the Virtual Business Service notifies the middle tier about the fault and recovery that has occurred at the database tier. The reaction of the middle tier to the events at the lower tier can be configured. The middle tier can choose to restart to update its state to reflect the failover at the database tier, or it can choose to ignore the event.

The soft type of dependency is available by default. You are not required to enable fault management to use soft type of dependency. If you want to use the remaining two dependency types (firm and restart), you need to enable fault management feature. This feature is activated by installing the VRTSvbs package on the cluster nodes, and enabling fault management.

Note:

The fault management feature is optional, and it is required only when you want to use service groups dependencies other than the default dependency type, which is soft. The fault management feature, when enabled, lets you use firm and restart type of dependencies in addition to the soft type. If you are not using fault management feature, you can still establish parent-child service group relationships with the dependency type as soft.

To enable fault management for a Virtual Business Service

  1. In the Veritas Operations Manager console, select Manage > Business Entities.
  2. Under the Business Entities view, select the Virtual Business Service, and do one of the following:

    • Select Actions > VBS Availability > Enable Fault Management.

    • Right-click the Virtual Business Service, and then select VBS Availability > Enable Fault Management.

    • Click the Virtual Business Service, and in the Virtual Business Service details page, click Actions > VBS Availability > Enable Fault Management.

  3. On the Enable Fault Management wizard panel, click OK to confirm.

    Note:

    Though a Virtual Business Service contains objects other than the service groups, the changes made for the fault management affect only service groups.

More Information

Disabling fault management for a Virtual Business Service

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