Cold backup for dataguard dbs

Question

There is request to take cold backup of primary & standby db , i am New to dataguard backups, Should i take backup of only primary db or both?

Answer 1

Yes apps owner is insisting to take cold backup of both db this weekend(they are patching apps), and here are the step i had in mind to do that to stop , primary & llogical standby dbs , take cold backups ( scripts, usermanaged backups, dont have rman there) & start the dbs.
On standby db
SQL > set numformat “999999999999999”
SQL > select newest_scn,applied_scn from dba_logstdby_progress ; (both should match)
SQL > select thread#,sequence#,applied from dba_logstdby_log;
SQL> select sequence#, status from v$archived_log;( on primary) Both sequence# should match
on primary db
SQL > alter system switch logfile ;
SQL > alter system archive log current ; ( to make sure current transactions come thru)
check tail of alert log of standby to make sure these redologs shipped & mined
standby db
SQL> ALTER DATABASE STOP LOGICAL STANDBY APPLY; (stop SQL Apply)
SQL> shutdown immediate;
Lsnrctl stop listener_corp_remrpt-haprimary db
SQL > shutdown immediate ;
Lsnrctl stop listener_corp_remprd-ha
Dont shutdown abort for any case, if both dbs are going down, first stop SQL apply on standby, take primary down and then take standby down)
Startup
primary
SQL>startup;
Lsnrctl start listener_corp_remprd-ha
Standby
SQL > startup
SQL > alter database start logical standby apply immediate ;
Lsnrctl start listener_corp_remrpt-ha