During install of Oracle RAC 12c (12.1.0.2), the installer, or possibly the cluster verification utility reports an error:
PRVG-11850 : The system call "connect" failed with error "111" while executing exectask on node ...
Tag Archives: runcluvfy.sh
Oracle 12c RAC runcluvfy.sh error: prerequisites on this operating system distribution
During an install of Oracle 12cR1 RAC Grid Infrastructure on Red Hat or CentOS 6.2, 6.3 or 6.4, you run the runcluvfy.sh script to test node readiness and it fails with the following error:
ERROR: Reference data is not available for verifying prerequisites on this operating system distribution Verification cannot proceed
This is due to bug 15973656 which states that runcluvfy.sh cannot properly detect the Red Hat 6.2 and above operating system. The problem also affects CentOS 6.2 and above.
Oracle 11gR2 2-node RAC on VMware Workstation 8 – Part IX
Time Required: 60 minutes
Class Materials:
- Oracle 11gR2 Grid Infrastructure software
Next we are going to install the Oracle Grid Infrastructure software.
The Grid Infrastructure will provide the Cluster software that allows the RAC nodes to communicate, as well as the ASM software to manage the shared disks.
To begin, download the zip file from the Oracle software download website and unzip on Orpheus. Make sure you are logged into Orpheus as the oracle user so that oracle owns the unzipped files.
Oracle 11gR2 RAC – sshUserSetup.sh script to swap ssh keys between hosts
Oracle 11gR2 RAC Grid install includes a useful script to establish and exchange ssh keys between hosts of the cluster.
The process to set up and exchange ssh keys between hosts to facilitate unchallenged logins between trusted users has been well documented already. Oracle simply provides a handy wrapper script over the whole process.
Although the main Grid install process will set up ssh keys, this is a useful verification step to ensure all nodes are reachable, as well as a prerequisite to having the cluvfy script succeed.
Oracle 11gR2 RAC – using runcluvfy to verify cluster configuration
The Oracle 11gR2 Grid installer includes a useful verify utility called runcluvfy.sh. This script is found in the grid directory, the same directory where you find runInstaller
The following shows the output of running runcluvfy.sh against a VMWare based RAC.
the gruffdba 