Sun Cluster Data Service for Oracle RAC Guide for Solaris OS

Sources of Diagnostic Information

If the state of a scalable device group resource or a file-system mount-point resource changes, the new state is logged through the syslog(3C) function.

The directory /var/cluster/ucmm contains the sources of diagnostic information that are shown in the following table.

Source	Location
Oracle UDLM core files	`/var/cluster/ucmm/dlm`_`nodename/cores` If you cannot find the Oracle log files at this location, contact Oracle support.
Log file for the current userland cluster membership monitor (UCMM) reconfiguration	`/var/cluster/ucmm/ucmm_reconf.log`
Log files for previous UCMM reconfigurations	`/var/cluster/ucmm/ucmm_reconf.log.0` (`0`,`1`,...) This location is dependent on the Oracle UDLM package.
Log files for UNIX Distributed Lock Manager (Oracle UDLM) events	`/var/cluster/ucmm/dlm_nodename/logs` If you cannot find the Oracle log files at this location, contact Oracle support.

The directory /var/opt/SUNWscor/oracle_server/proxyresource contains log files for the resource that represents the Oracle 10g R2 RAC proxy server. Messages for server-side components and client-side components of the proxy server resource are written to separate files:

Messages for server-side components are written to the file message_log.resource.
Messages for client-side components are written to the file message_log.client.resource.

In these file names and directory names, resource is the name of the resource that represents the Oracle RAC server component.

The directory /var/opt/SUNWscor/oracle_server contains log files for the Oracle 9i RAC server resource. Each file is named /var/opt/SUNWscor/oracle_server/message_log.resource.

The system messages file also contains diagnostic information.

If a problem occurs with Sun Cluster Support for Oracle RAC, consult these files to obtain information about the cause of the problem.