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

Resolution
Synchronize the time settings across the nodes.
Note: For Oracle RAC 11g Release 2, it is mandatory to configure NTP for
synchronizing time on all nodes in the cluster.
System architecture checks failed with errors
The system architecture check may fail with the following error:
Checking system architecture information...Failed
You may see the following messages in the logs:
Combinations with mismatched system architecture
types: <list of systems>
Cause
All the nodes in the cluster do not have the same number of processors or CPU
architecture.
Resolution
Make sure that the nodes have the same architecture and the same number and
type of processors.
Operating system and patch level synchronization checks failed with
errors
The operating system and patch level checks may fail with the following error:
Checking OS and patch level synchronization... Failed
You may see the following message in the logs:
Combinations with mismatched OS and
patch level: <list of systems>
Cause
All the nodes in the cluster do not have the same operating system version and
patch levels.
173Troubleshooting SF Oracle RAC
Troubleshooting installation and configuration check failures