Oracle Database Discussions

Friends ,

I know that the standard LOG SWITCH TIme interval is 20/30 minutes , i.e., every time it is better switch redolog 1 to redolog 2 (or redolog2 to redolog3) within 20/30 minutes.

But in my production server , Logfile switches within every 60 minutes every time in the peak hour . Now my question , How I can make a situation where my logfile should switch to another logfile between 20/30 minutes .

Here my database configuration is :

Oracle database 10g (10.2.0.1.0 version) in AIX 5.3 server
AND

SQL> show parameter fast_start_mttr_target

NAME TYPE VALUE
------------------------------------ ----------- -----
fast_start_mttr_target integer 600

My every redolog file size is = 50 MB

In this situation , give me advice plz how I can reduce my logswitch time interval ?