I can think about some points using DG over SRDF
- 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
- SRDF replicates everything including corruptions
- 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
- DG restarts itself after a failover
- You can do rolling upgrades for one off patches using DG
- With DG you can use your Standby Database for some other purposes
Thanks
--
LSC
On 6/16/07, Binh Pham <binhpham15_at_hotmail.com> 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.
>
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Received on Sun Jun 17 2007 - 02:47:31 CDT
