Re: clean up ocr?

From: DA Morgan <damorgan_at_psoug.org>
Date: Tue, 26 Jun 2007 20:28:22 -0700
Message-ID: <1182914902.492616@bubbleator.drizzle.com>

herta wrote:
> On Jun 26, 5:18 pm, DA Morgan <damor..._at_psoug.org> wrote:

>> herta wrote:
>>> You can run standby databases in a cluster, as is explained in both
>>> the document I already referred to and in the OracleŽ Data Guard
>>> Concepts and Administration manual
>> That you can, at least in theory, may not be debatable but what is the
>> point?
>>
>> What is the purpose you expect this standby to serve if it is co-located
>> with your cluster?
>>
>> What is the business case?
>> --
>> Daniel A. Morgan
>> University of Washington
>> damor..._at_x.washington.edu (replace x with u to respond)
>> Puget Sound Oracle Users Groupwww.psoug.org

>
> I think I just explained.
> The standby databases are in a remote location. We want redundancy
> there for two reasons:
> 1. for high availability during normal standby operations as the two
> servers don't have HW support contracts
> 2. to have high availability already in place in case we have a
> disaster. We can then startup using the servers we have, and add
> more servers (which will be required to carry the load as more
> applications will get on line again) without disrupting the operations
> already in progress. As you know, you cannot move a single instance
> database to a RAC config without shutting down the database.

That's not an explanation. I understand why you would want a DR site. I understand why you might want a RAC cluster or Data Guard at a DR site. That's not what you indicated you wanted to do. You wrote:

"You can run standby databases in a cluster"

and I am asking for the business case that supports this specific configuration. Because I don't believe there is one.

-- 
Daniel A. Morgan
University of Washington
damorgan_at_x.washington.edu (replace x with u to respond)
Puget Sound Oracle Users Group
www.psoug.org

Received on Tue Jun 26 2007 - 22:28:22 CDT