I can think about some points using DG over SRDF 1. For SRDF you need high bandwidth and low latency communcation line, AFIAK the finest level is a block so whenever there is a small change a block is replicated/mirrored 2. SRDF replicates everything including corruptions 3. Some remote mirroring protections, I am not sure if SRDF would come into this category, can span to a limited distance whereas with DG thousands of miles is not uncommon 4. DG restarts itself after a failover 5. You can do rolling upgrades for one off patches using DG 6. With DG you can use your Standby Database for some other purposes Thanks -- LSC On 6/16/07, Binh Pham <binhpham15@xxxxxxxxxxx> wrote:
My shop is considering using either one of these products for DR. My questions are: 1. What are the reasons to use one over the other? 2. Advantages and disadvantages of each product Thanks in advance for any input. _________________________________________________________________ Make every IM count. Download Messenger and join the i'm Initiative now. It's free. http://im.live.com/messenger/im/home/?source=TAGHM_June07 -- //www.freelists.org/webpage/oracle-l