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< Data GuardDonald K. Burleson
Oracle Data GuardChapter 3 - Implementing Standby
Databases
Verify the Physical Standby
Database
Creating
archive destination LOG_ARCHIVE_DEST_2: 'stdby1'
ARC1: Complete FAL archive (thread 1 sequence 224 destination
stdby1)
At this point, there will be archives logs on
the standby site, but they will not be applied to the standby
database until the primary database is put in managed recovery mode.
This can be achieved by issuing the following statement:
ALTER
DATABASE RECOVER MANAGED Oracle instance
DISCONNECT FROM SESSION;
There are few other options for the RECOVER
MANAGED Oracle instance
statement, but at this information will be
limited to the options that are relevant for putting the database in
the managed recovery mode its creation.
The managed recovery can be started as a
foreground or background process. The
“disconnect from session”
option allows the background process to do the managed recovery. It
will start a MRP process on the standby site, which is responsible
for applying the archived redo logs onto the standby database. If
this keyword is omitted, it will be necessary to keep a session open
for the recovery.
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