The vxfenswap utility does not detect failure of coordination points validation due to an RSH limitation (2531561)

The vxfenswap utility runs the vxfenconfig -o modify command over RSH or SSH on each cluster node for validation of coordination points. If you run the vxfenswap command using RSH (with the -n option), then RSH does not detect the failure of validation of coordination points on a node. From this point, vxfenswap proceeds as if the validation was successful on all the nodes. But, it fails at a later stage when it tries to commit the new coordination points to the VxFEN driver. After the failure, it rolls back the entire operation, and exits cleanly with a non-zero error code. If you run vxfenswap using SSH (without the -n option), then SSH detects the failure of validation of coordination of points correctly and rolls back the entire operation immediately.

Workaround: Use the vxfenswap utility with SSH (without the -n option).