Speaking of the SDU parameters, has anyone here seen tangible benefits from increasing the SDU for shipping redo from the primary database to a standby? Our specific environment: Windows 2003 Oracle 10.2.0.4 w/DataGuard Logical standby geographically separate from the primary Primary in maximum performance mode The other day we had a situation where redo was being generated so quickly on the primary that not all of it got shipped to the standby. I was wondering if a large SDU could alleviate this type of problem in the future. -- Jason Heinrich