Sun Cluster Data Service for Oracle Real Application Clusters Guide for Solaris OS

Node Panic During Initialization of Sun Cluster Support for Oracle Real Application Clusters

If a fatal problem occurs during the initialization of Sun Cluster Support for Oracle Real Application Clusters, 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

To determine the cause of the problem, examine the system messages file. 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 amount of shared memory is insufficient to enable the Oracle UDLM to start.

  • The version of the Oracle UDLM is incompatible with the version of Sun Cluster Support for Oracle Real Application Clusters.

For instructions to correct the problem, see How to Recover From a Node Panic During Initialization.

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

How to Recover From a Node Panic During Initialization

  1. Boot into maintenance mode the node that panicked.

    For more information, see Sun Cluster System Administration Guide for Solaris OS.

  2. Verify that you have correctly installed your volume manager packages.

    If you are using VxVM, check that you have installed the software and check that the license for the VxVM cluster feature is valid.

  3. Ensure that you have completed all the procedures that precede installing and configuring the Oracle UDLM software.

    The procedures that you must complete are listed in Table 1–1.

  4. Ensure that the Oracle UDLM software is correctly installed and configured.

    For more information, see Installing the Oracle UDLM.

  5. Reboot the node that panicked.

    For more information, see Sun Cluster System Administration Guide for Solaris OS.