Remove the flashback logs in EBS envoirnment.

Question

Hi,
In my production database(primary) machine flashback is ON.
So, logs are creating in following directory:
/d01/silprod/SILP/db/apps_st/data/archives/SILP01_SER/flashback
In my physical standby database flashback is OFF.
So, My question is that:
Can I remove the flashback logs from production safely?
Thanks.

Answer 1

Hi,
How to identified that which archive logs no longer needed and can delete, and how to reclaim the archive space?
Is below steps are correct?
Archive location: /d01/silprod/SILP/db/apps_st/data/archives/SILP01_SER/archivelog
Archive files name like: o1_mf_1_894_5jpkly8k_.arc -------------> Sequence#=894
Archive Size occupied:
> du -sh archivelog/ ------------> 2.7G archivelog/
STEP#1:
SQL> SELECT THREAD#, SEQUENCE# FROM V$LOG WHERE STATUS='CURRENT'; -----------> RESULT: THREAD#=1 AND SEQ$= 894
SQL> ALTER SYSTEM ARCHIVE LOG CURRENT;---------------->DONE
SQL> SELECT THREAD#, SEQUENCE# FROM V$LOG WHERE STATUS='CURRENT'; -----------> RESULT: THREAD#=1 AND SEQ$= 895
Confirm the current file have been applied to the standby database with the below query
SQL> SELECT MAX(SEQUENCE#) FROM V$LOG_HISTORY; -----------------> RESULT: THREAD#=1 AND SEQ$= 894
Step#2:(Memory)
> delete unwanted archive log files from disk (rm, del commands)---------> all archives files deleted expected of PROD_1_894.arc
RMAN> crosscheck archivelog all; - marks the controlfile that the archives have been deleted
RMAN> delete expired archivelog all; - deletes the log entries identified above.
But, How to identified that which flashback files no longer needed and can delete, and how to reclaim the flashback space?
Flashback location: /d01/silprod/SILP/db/apps_st/data/archives/SILP01_SER/flashback
Flashback files name like: o1_mf_5jlc8gb0_.flb, o1_mf_5jlcb2bv_.flb etc ------------> how to identified which file(File Name has no sequence#) should I delete?
Flashback Size occupied:
> du -sh flashback/ ------------> 3.5G flashback/