ORA-16808: primary database is not open

admin

ORA-16808: primarydatabase is not open
Cause: A prior attempt to open the primary database wasdisallowed because the
primary had shut itself down earlier after being isolated from both thefast-start
failover observer and the target standby database for more than
FastStartFailoverThreshold seconds. It was assumed that a fast-start failoverwas
underway. Since that time, re-contact with either the observer or the targetstandby
database indicates that no such failover had actually occurred. The primary
database can now be opened.
Action: Openthe database by issuing the SQL*Plus ALTER DATABASE OPEN
command.