Veritas Storage Foundation 5.1 SP1 for Oracle RAC Administrator"s Guide (5900-1512, April 2011)

Resolution
Install the same version of the operating system and patch levels on all nodes in
the cluster.
CPU frequency checks failed with errors
The CPU frequency checks across nodes may fail with the following error:
Checking for CPU frequency match...Failed
You may see the following message in the logs:
Combinations with mismatched frequencies: <list of systems>
Cause
The speed of the processors varies across the nodes in the cluster.
Resolution
Make sure that the nodes have the same type of processor.
LLT link mode checks failed with errors
The LLT link check may fail with the following error:
Checking LLT Links' Full Duplex setting for
sys_name...Failed
You may see the following messages in the logs:
Error: Link link_name is not Full-Duplex on sys_name.
Table 3-2 lists the messages displayed for the check.
Troubleshooting SF Oracle RAC
Troubleshooting installation and configuration check failures
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