Thinking Out Loud

September 20, 2017

RMAN Backup from Standby w Recovery Catalog Part 2

Filed under: Dataguard,RMAN — mdinh @ 11:15 pm

RMAN Backup from Standby w Recovery Catalog

What! There’s a part 2?

FRA from primary was getting full since archivelog deletion was not working.

  1. Why is there a need to delete archivelog since FRA performs clean up?
  2. If FRA performs clean up then why is the destination full?
  3. Go to 1.

Reminds me of, “Who’s on first, What’s on second, I Don’t Know is on third”

Notice the old configuration.

old RMAN configuration parameters:
CONFIGURE ARCHIVELOG DELETION POLICY TO BACKED UP 1 TIMES TO 'SBT_TAPE' APPLIED ON ALL STANDBY;
new RMAN configuration parameters:
CONFIGURE ARCHIVELOG DELETION POLICY TO APPLIED ON ALL STANDBY;

Archivelog deletion.

connect target;
CONFIGURE ARCHIVELOG DELETION POLICY TO APPLIED ON ALL STANDBY;
list archivelog all;
delete noprompt archivelog until time 'sysdate-7/24';
list archivelog all;

Archivelog deleted.


archived log file name=+FRA/QA/ARCHIVELOG/2017_09_20/thread_1_seq_31831.359.955164907 RECID=87186 STAMP=955164906
deleted archived log
archived log file name=+FRA/QA/ARCHIVELOG/2017_09_20/thread_1_seq_31832.886.955166705 RECID=87189 STAMP=955166705
deleted archived log
archived log file name=+FRA/QA/ARCHIVELOG/2017_09_20/thread_1_seq_31833.594.955168505 RECID=87191 STAMP=955168504
deleted archived log
archived log file name=+FRA/QA/ARCHIVELOG/2017_09_20/thread_1_seq_31834.411.955170305 RECID=87193 STAMP=955170304
deleted archived log
archived log file name=+FRA/QA/ARCHIVELOG/2017_09_20/thread_1_seq_31835.418.955172107 RECID=87195 STAMP=955172106
deleted archived log
archived log file name=+FRA/QA/ARCHIVELOG/2017_09_20/thread_1_seq_31836.448.955173905 RECID=87197 STAMP=955173906
deleted archived log
archived log file name=+FRA/QA/ARCHIVELOG/2017_09_20/thread_1_seq_31837.438.955175705 RECID=87199 STAMP=955175705
deleted archived log
archived log file name=+FRA/QA/ARCHIVELOG/2017_09_20/thread_1_seq_31838.811.955176699 RECID=87201 STAMP=955176703
deleted archived log
archived log file name=+FRA/QA/ARCHIVELOG/2017_09_20/thread_1_seq_31839.922.955178497 RECID=87203 STAMP=955178499
deleted archived log
archived log file name=+FRA/QA/ARCHIVELOG/2017_09_20/thread_1_seq_31840.468.955180295 RECID=87205 STAMP=955180294
deleted archived log
archived log file name=+FRA/QA/ARCHIVELOG/2017_09_20/thread_1_seq_31841.910.955182097 RECID=87207 STAMP=955182097
deleted archived log
archived log file name=+FRA/QA/ARCHIVELOG/2017_09_20/thread_1_seq_31842.830.955183897 RECID=87209 STAMP=955183897
deleted archived log
archived log file name=+FRA/QA/ARCHIVELOG/2017_09_20/thread_1_seq_31843.986.955185697 RECID=87211 STAMP=955185696
deleted archived log
archived log file name=+FRA/QA/ARCHIVELOG/2017_09_20/thread_1_seq_31844.879.955186507 RECID=87212 STAMP=955186506
Deleted 14 objects

OH SH*T

RMAN> connect target;

connected to target database: QA (DBID=3476258591)

RMAN> connect catalog cat@rman

recovery catalog database Password:
connected to recovery catalog database

RMAN> list backup of archivelog from logseq=31831 until logseq=31844 thread=1 summary;

specification does not match any backup in the repository

Sign of JOY!

RMAN> list backup of archivelog from logseq=31831 until logseq=31844 thread=1 summary for db_unique_name all;


specification does not match any backup in the repository

List of Backups for database with db_unique_name QADR
===============
Key     TY LV S Device Type Completion Time     #Pieces #Copies Compressed Tag
------- -- -- - ----------- ------------------- ------- ------- ---------- ---
812913  B  A  A DISK        2017-09-20:05:43:11 1       1       YES        DAILY_ARCHLOG_BKUP
812915  B  A  A DISK        2017-09-20:05:43:30 1       1       YES        DAILY_ARCHLOG_BKUP
813550  B  A  A DISK        2017-09-20:09:36:44 1       1       YES        DAILY_ARCHLOG_BKUP
813551  B  A  A DISK        2017-09-20:09:37:55 1       1       YES        DAILY_ARCHLOG_BKUP
813559  B  A  A DISK        2017-09-20:09:41:33 1       1       YES        DAILY_ARCHLOG_BKUP
813570  B  A  A DISK        2017-09-20:09:45:17 1       1       YES        DAILY_ARCHLOG_BKUP
814104  B  A  A DISK        2017-09-20:13:36:44 1       1       YES        DAILY_ARCHLOG_BKUP
814105  B  A  A DISK        2017-09-20:13:37:55 1       1       YES        DAILY_ARCHLOG_BKUP
814112  B  A  A DISK        2017-09-20:13:41:05 1       1       YES        DAILY_ARCHLOG_BKUP
814114  B  A  A DISK        2017-09-20:13:41:45 1       1       YES        DAILY_ARCHLOG_BKUP

RMAN> show all;

RMAN configuration parameters for database with db_unique_name QADR are:
CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 2 DAYS;
CONFIGURE BACKUP OPTIMIZATION OFF; # default
CONFIGURE DEFAULT DEVICE TYPE TO DISK;
CONFIGURE CONTROLFILE AUTOBACKUP ON;

Wondering if
CONFIGURE DEFAULT DEVICE TYPE TO DISK
had anything to do with
CONFIGURE ARCHIVELOG DELETION POLICY TO BACKED UP 1 TIMES TO ‘SBT_TAPE’ APPLIED ON ALL STANDBY
not working?

You might ask, why not just use “CONFIGURE ARCHIVELOG DELETION POLICY TO APPLIED ON ALL STANDBY” only.

That depends if you want accuracy or not.

Was the requirement backup to tape or to disk?

If the requirement is backup to tape, feel lucky FRA got full; otherwise, there’s a false pretense of good backup going to tape.

 

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