Resizing redo log files on a 3 node RAC with single node standby database

Question

Hi
On a 3 node 11g RAC system,I have to resize the redo logs on primary database from 50M to 100M. I was planning to do the following steps:
SQL> select group#,thread#,members,status from v$log;
GROUP# THREAD# MEMBERS STATUS
1 1 3 INACTIVE <-- whenefver INACTIVE, logfile group can be dropped
2 1 3 CURRENT & resized, switch logfile can change logfile group
3 1 3 INACTIVE
4 2 3 INACTIVE
5 2 3 INACTIVE
6 2 3 CURRENT
7 3 3 INACTIVE
8 3 3 INACTIVE
9 3 3 CURRENT
9 rows selected.
SQL> alter database drop logfile group 1;
Database altered.
SQL> ALTER DATABASE ADD LOGFILE THREAD 1
GROUP 1 (
'/PROD/redo1/redo01a.log',
'/PROD/redo2/redo01b.log',
'/PROD/redo3/redo01c.log'
) SIZE 100M reuse; 2 3 4 5 6
Database altered.
However I am not sure what needs to be done for the standby. The standby_file_management is set to auto and it is single instance standby.
SQL> select group#,member from v$logfile where type='STANDBY';
GROUP#
MEMBER
10
/PROD/flashback/PROD/onlinelog/o1_mf_10_7b44gy67_.log
11
/PROD/flashback/PROD/onlinelog/o1_mf_11_7b44h7gy_.log
12
/PROD/flashback/PROD/onlinelog/o1_mf_12_7b44hjcr_.log
Please let me know.
Thanks
Sumathy

Answer 1

Hello;
For Redo and Standby redo this won't help :
standby_file_management is set to auto
On the Standby cancel recovery, then drop and recreate the redo and or Standby redo.
Then start recovery again.
Example ( I have a habit of removing the old file at the OS to avoid REUSE and conflicts )
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;
SQL> ALTER SYSTEM SET STANDBY_FILE_MANAGEMENT='MANUAL';
alter database add standby logfile group 4
('/u01/app/oracle/oradata/orcl/standby_redo04.log') size 100m;
ALTER SYSTEM SET STANDBY_FILE_MANAGEMENT='AUTO'
Notes worth reviewing :
Online Redo Logs on Physical Standby [ID 740675.1]
Error At Standby Database Ora-16086: Standby Database Does Not Contain Available Standby Log Files [ID 1155773.1]
Example of How To Resize the Online Redo Logfiles [ID 1035935.6]
Best Regards
mseberg