Node Panic During Initialization of Sun Cluster Support for Oracle RAC

If a fatal problem occurs during the initialization of Sun Cluster Support for Oracle RAC, the node panics with an error message similar to the following error message:

panic[cpu0]/thread=40037e60: Failfast: Aborting because "ucmmd" died 30 seconds ago

Description:

A component that the UCMM controls returned an error to the UCMM during a reconfiguration.

Cause:

The most common causes of this problem are as follows:

• The license for Veritas Volume Manager (VxVM) is missing or has expired.

• The ORCLudlm package that contains the Oracle UDLM is not installed.

• The version of the Oracle UDLM is incompatible with the version of Sun Cluster Support for Oracle RAC.

• The amount of shared memory is insufficient to enable the Oracle UDLM to start.

A node might also panic during the initialization of Sun Cluster Support for Oracle RAC because a reconfiguration step has timed out. For more information, see Node Panic Caused by a Timeout.

Solution:

For instructions to correct the problem, see How to Recover From a Failure of the UCMM or a Related Component.

When the node is a global-cluster voting node of the global cluster, the node panic brings down the entire machine. When the node is a zone-cluster node, the node panic brings down only that specific zone and other zones remain unaffected.