Managing and deleting event subscriptions

When the IBM® Flex System Manager management software discovers a Chassis Management Module (CMM), System-Management Processor, or a compute node Platform Agent, it automatically creates an event subscription (or CIM subscription) to that managed resource. If you replace your management node with another management node, you might need to clear existing CIM subscriptions.

CIM subscriptions are used by the CMM to notify the management node that receives the subscription about events occurring in the CMM. Typically, these subscriptions are deleted by the management software when the CMM or other resource is no longer managed, or when the resource is removed from a Flex System Enterprise Chassis. However, if a management node is removed from the chassis, and replaced by another management node before the chassis or resource is unmanaged, the management software does not automatically delete the existing event subscriptions; you must manually delete the subscriptions in the management software command-line interface (CLI).

If you must replace a management node with a new management node, make sure that you unmanage all managed resources before you remove the old management node from the chassis. You can unmanage a chassis or other managed resource from the Management Domain page in the management software web interface. For more information about management domains and unmanaging resources, see Using management domains.

If you use a third-party CIM tool, it might also set CIM subscriptions to a CMM. If you want to clear subscriptions that were established with a CIM tool, use that CIM tool to clear them.

If you replace a management node with a new management node without first unmanaging all resources, use the lschassisind command to target a managed resource and clear the existing event subscriptions. See lschassisind for more information.