List, We are running 10204 instances, recently the arch log destination got filled up 100% and we noticed few arch logs files sizes are varying, the sizes are twice larger than the average file size, archive_lag_target is set to 0. Can anyone please throw more insight on this. Thanks Prabhu _________________________________________________________________ Register once and play all contests. Increase your scores with bonus credits for logging in daily on MSN. http://specials.msn.co.in/msncontest/index.aspx