ORA-01154 trying to shutdown second Standby Database in Maximum Protection

(Doc ID 1431533.1)

Last updated on OCTOBER 18, 2016

Applies to:

Oracle Server - Enterprise Edition - Version: and later   [Release: 11.1 and later ]
Information in this document applies to any platform.


  • There is a Primary Database in Maximum Protection Mode having at least two associated Standby Databases.
  • Both Standby Databases are serving the Maximum Protection Mode, ie. Log Transport Services to these Standby Databases are using 'LGWR SYNC AFFIRM'
  • One or both Standby Databases are Physical Standby Databases in Active Data Guard Mode or at least open 'READ ONLY'


If we now try to shutdown such a Standby Database which is open READ ONLY, if fails with

ORA-01154: database busy. Open, close, mount, and dismount not allowed

although the remaining Standby Databases are serving the Maximum Protection Mode, too.

In the ALERT.LOG we can find Entries like this:

Attempt to shut down Standby Database
Standby Database operating in NO DATA LOSS mode
Detected primary database alive, shutdown primary first, shutdown aborted


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