DataGuard: verify recovery progress
- From: "Ivan Chow" <ichow2@xxxxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Wed, 07 Jul 2004 17:12:09 -0400
Hi,
I tried to verify if archived logs get applied correctly to my standby
database via v$archived_log and v$archive_dest_status but they both returned
different results.
From the documentation:
v$archive_dest_status.APPLIED_SEQ#
NUMBER
Identifies the log sequence number of the most recent applied redo log
received at the destination
v$archived_log.APPLIED
VARCHAR2(3)
(YES|NO) Indicates whether or not the archivelog has been applied to its
corresponding standby database. YES indicates it has been applied; NO
indicates it has not. The value is always NO for local destinations
SQL> select name,sequence#,archived,applied from v$archived_log;
NAME SEQUENCE# ARC APP
-------------------------------------------------- ---------- --- ---
...
...
...
C:\ORACLE\ADMIN\PSTUR\RARCHDEST\ARC00878.001 878 YES YES
C:\ORACLE\ADMIN\PSTUR\RARCHDEST\ARC00879.001 879 YES YES
C:\ORACLE\ADMIN\PSTUR\RARCHDEST\ARC00880.001 880 YES YES
C:\ORACLE\ADMIN\PSTUR\RARCHDEST\ARC00881.001 881 YES YES
SQL> select dest_name,archived_seq#,applied_seq# from v$archive_dest_status;
DEST_NAME ARCHIVED_SEQ# APPLIED_SEQ#
------------------------------ ------------- ------------
LOG_ARCHIVE_DEST_1 560 0
LOG_ARCHIVE_DEST_2 0 0
LOG_ARCHIVE_DEST_3 0 0
LOG_ARCHIVE_DEST_4 0 0
LOG_ARCHIVE_DEST_5 0 0
LOG_ARCHIVE_DEST_6 0 0
LOG_ARCHIVE_DEST_7 0 0
LOG_ARCHIVE_DEST_8 0 0
LOG_ARCHIVE_DEST_9 0 0
LOG_ARCHIVE_DEST_10 0 0
LOG_ARCHIVE_DEST_11 881 880
if v$archived_log.applied=YES for sequence#881, I would expect that
v$archive_dest_status.applied_seq#=881 too, isn't it? Instead it reports
that the max
sequence that has been applied is 880. Am I making the right comparision?
Which view should I rely on?
DB: 9.2.0.4
thanks.
Ivan
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