How to create online log in standby instance?

Question

Oracle say that:
Step 3 Create an Online Redo Log on the Standby Database
Although this step is optional, Oracle recommends that an online redo log be created
when a standby database is created. By following this best practice, a standby database
will be ready to quickly transition to the primary database role.
The size and number of redo log groups in the online redo log of a standby database
should be chosen so that the standby database performs well if it transitions to the
primary role.
But when I execute "ALTER DATABASE ADD LOGFILE ('/opt/oracle/oradata/orcl/redo01.log') SIZE 50M;" in standby instance,I get the follow message:
ORA-01275: Operation ADD LOGFILE is not allowed if standby file management is automatic.
How could I do?

Answer 1

Hello xyz_hh ;
Your post is just a little vague so I'm guessing you are referring to "3.2.6 Start the Physical Standby Database" in "Data Guard Concepts and Administration"
If this is correct, this is part of "Step-by-Step Instructions for Creating a Physical Standby Database"
Assuming I right so far you are try to "Create an Online Redo Log on the Standby Database".
Can you confirm along with you OS, and Oracle version?
If you are trying to create redo on the standby after the fact you will need to make this change before you proceed.
STANDBY_FILE_MANAGEMENT=MANUALIf this is your issue check this link out:
http://kb.dbatoolz.com/tp/2692.avoid_ora-19527_set_dummy_log_file_name_convert.html
Best Regards
mseberg
Edited by: mseberg on Aug 12, 2011 5:35 AM