Checking user equivalence

 Dear All,
When i ran this command i am getting the following error.

root@dbsrv3 # ./cluvfy comp admprv -n dbsrv3,dbsrv4  -o user_equiv -sshonly -verbose

Verifying administrative privileges

Checking user equivalence...

Check: User equivalence for user "root"
  Node Name                             Comment
  ------------------------------------  ------------------------
  dbsrv4                                failed
  dbsrv3                                failed
Result: User equivalence check failed for user "root".

Verification of administrative privileges was unsuccessful on all the nodes.

How to solve this one.

Please any one can help me.

Regards,
Ravindra