Owner's Manual

Troubleshooting 11
Cluster Verification Utility (Cluvfy) Fails Displaying ERROR: PRVF-6020
When you enable a jumbo frame for the Ethernet interface used for iSCSI
storage connection with different Maximum Transmission Unit (MTU)
values compared to public and private network interface, and then you
execute Cluvfy, the node connectivity prerequisite check fails and the
following error message is displayed:
Different MTU values used across network interfaces in
subnet address.
Ignore the PRVF-6020 error message and proceed with the installation.
Oracle Grid Infrastructure Installation Fails During Node Connectivity
Prerequisite Check
If you set different MTU values for the iSCSI interface than the public and
private interface during the Oracle Grid Infrastructure installation, the node
connectivity prerequisite check fails and the following error message is
displayed:
Different MTU values used across network interfaces in
subnet address.
To resolve this issue, ignore the error message and select Ignore All present at
the top of the Organizational Unit Identifier (OUI) screen, and then proceed
with the installation.
Cluster Verification Check Fails
This issue occurs when the public network IP address is not routable.
For example: 192.168.xxx.xxx
To resolve this issue, assign a valid, routable public IP address.