Thanks for the reply Phillip. I had already based the plan around these factors and hence the daily, 4 hourly, 30 minute schedule. This is just one element of my overall DR plan.

What I'm trying to ascertain is if the plan I have for clearing the diffs and translogs down once a day at the point of full backup has any draw backs. It appears to work and I can get point in time recovery I need and a restore within the time boundaries I've set for this exercise. My question is just a nuts and bolts technical one.

Thanks

J