Thank you everyone for your responses! What is the difference between going with a RAC standby versus a single instance standby? - David John Darrah <darrah.john@xxxxxxxxx> wrote: The only limitation I know of is that you can't have RAC going to single instance and then cascade from there to another standby. You can definitely have a simple standby from RAC to single instance. On 7/27/07, d cheng <dc4oracle@xxxxxxxxx> wrote: Hi Listers, I am working with a 2-node RAC system and we are thinking about using Data Guard's physical database feature for DR Do you know if we can use a single instance physical Standby database versus having another 2-node RAC standby system? Thank you in advance for your help! - David --------------------------------- Shape Yahoo! in your own image. Join our Network Research Panel today! --------------------------------- Luggage? GPS? Comic books? Check out fitting gifts for grads at Yahoo! Search.