CMMVC9167E Host and hostcluster already have associated throttles.
Explanation
An attempt was made to add a host to a host cluster when throttles were already defined for both the host and the host cluster. Throttles can be defined for the host or for the host cluster, but not for both.
User response
Use the rmthrottle command to remove either the host throttle or the host cluster throttle, then retry the addhostclustermember command.