On Jun 26, 10:21 am, Richard <postmas..._at_127.0.0.1> wrote:
> I'm searching for opinions on disaster proofing options in Oracle,
> particularly those involving wide separation of server nodes, in
> different data centres.
>
> I know this can be done using replication and DataGuard but I wondered
> about RAC. There are a couple 'wide area' clustering products
> available, notably OpenVMS and some third party applications for
> Linux. They appear to allow 'shared nothing' clusters to be created
> where individual nodes are not connected to a shared disk array, as is
> usual with RAC.
>
> Is anybody aware of these products being used to create 'wide area'
> RAC clusters? If so I'd be interested to hear opinions.
Sorry I should have added that many people use "not replication" and
"not dataguard" but disk subsystems ( like EMC ) that can be keep data
in multiple places. Maybe you could try doing a google with words
like emc srdf async etc. ( Synchronous also an option but has
limitations with increasing distance ). Lots of bandwidth required?
You bet.
Received on Tue Jun 26 2007 - 09:45:23 CDT
