Oracle Database Oracle Clusterware Installation Guide for HP-UX

Checking Oracle Clusterware Installation Readiness with CVU
2.14.5 Verbose Mode and "Unknown" Output
If you run Cluster Verification Utility using the -verbose argument, and it responds
with UNKNOWN for a particular node, then this is because Cluster Verification Utility
cannot determine if a check passed or failed. The following is a list of possible causes
for an "Unknown" response:
■ The node is down
■ Executables required by Cluster Verification Utility are missing in the /bin
directory in the Oracle Clusterware home or Oracle home directory
■ The user account starting Cluster Verification Utility does not have privileges to
run common operating system executables on the node
■ The node is missing an operating system patch, or a required package
■ The node has exceeded the maximum number of processes or maximum number
of open files, or there is a problem with IPC segments, such as shared memory or
semaphores
2.15 Checking Oracle Clusterware Installation Readiness with CVU
Use Cluster Verification Utility (CVU) to check your servers for their readiness to
install Oracle Clusterware:
As the installation owner user (oracle or crs), ensure that you have ssh keys loaded
into memory, and enter a command using the following syntax to verify that your
cluster is properly configured for Oracle Clusterware installation:
/mountpoint/runcluvfy.sh stage -pre crsinst -n node_list [-verbose]
In the preceding syntax example, the variable node_list is a comma-delimited list of
nodes in your cluster. This command checks node reachability, user and group
equivalence on each node, node connectivity, and basic system requirements,
including kernel versions and packages.
Select the option -verbose to receive progress updates as Cluster Verification Utility
performs its system checks, and detailed reporting of the test results.
For example, to verify system readiness on a two-node cluster with nodes node1 and
node2, with the mountpoint /mnt/dvdrom, and with updates and a summary of the
verification checks Cluster Verification Utility performs, enter the following command:
$ /mnt/dvdrom/runcluvfy.sh stage -pre crsinst -n node1,node2 -verbose
2-32 Oracle Clusterware Installation Guide
Note: If you do not specify a release version to check, then Cluster
Verification Utility checks for 11g release 1 (11.1) requirements.