The Cluster Edition supports the quiesce database command.
If you issue shutdown instance or shutdown cluster, the cluster aborts all quiescedb commands.
The cluster rejects all quiescedb commands issued by a user if shutdown instance or shutdown cluster commands are in progress.
The cluster aborts all quiescedb commands if instance failover recovery is in progress.
The cluster rejects all quiescedb commands issued by a user if instance failover recovery is in progress.
You cannot add a new instance to the cluster while the master database is part of an ongoing quiesce database hold command.
