After uninstalling the QAS agent (vasclnt) package, local users that are mapped to AD accounts are unable to authenticate to AIX servers.
Product defect. Uninstalling the QAS agent (vasclnt) package from AIX leaves VASMU as the authentication method for mapped users.
Waiting for fix in a future release of Quest Authentication Service.
Before uninstalling the QAS agent, unjoin AIX server from domain or run "/opt/quest/libexec/vas/vasd/vas_muupd --unmap-all" to unmap users.
"chuser SYSTEM=compat username" can be used to update authentication methed for those mapped users.