ADVM-05994
Warning: backup snapshots have not been created for one or more transfers. A switchover or failover operation at this time could result in significant data loss. If you wish to perform a failover anyway, the '-f' (force) option is required.
Cause
There have been problems creating a backup snapshot during the last data transfer. Significant data loss is possible if failover is performed at this time. Snapshot operations may fail during a rolling upgrade. It's best in all situations to complete the rolling upgrade before performing a failover operation. A switchover operation is not possible when backup snapshots cannot be created, even when using the '-f' option.
Action
Resolve the cause of the snapshot create failure(s) or, if the operation desired is a failover, retry the operation specifying the '-f' option.