Re: 10g with HACMP (no RAC)?

From: DA Morgan <>
Date: Sat, 06 Sep 2008 21:48:52 -0700
Message-ID: <>

Palooka wrote:
> wrote:

>> On Sat, 06 Sep 2008 21:14:28 +0100, Palooka <>
>> wrote:
>>> Hi,
>>> We are planning to implement Oracle on AIX 5.3 with HACMP 
>>> but without RAC. 
>> Why? HACMP only offers server and application failover, it does not
>> offer any special facilities for Oracle. So the instances will not
>> failover properly.
>> In Oracle 10g RAC you don't even need HACMP!
>> Also Oracle RAC allows for active/passive configurations.

> Thanks for the response, Sybrand.
> Two reasons: First, the application vendor does not support RAC, except
> maybe as active/passive. But for that the RAC licence cost is
> prohibitively expensive.
> Secondly, whether we like it or not, the customer is a dedicated IBM
> shop (personally I have doubts about AIX being the best *nix platform
> for Oracle; I would far rather use Solaris or HP/UX). So HACMP is a given.
> In any case, the architectural decisions have been made; I am just the
> poor DBA who has actually to do the implementation. Can you offer some
> practical advice?
> Thanks,
> Palooka

And why not Data Guard? First it is free ... Second it provides transparent failover just like RAC.

Daniel A. Morgan
Oracle Ace Director & Instructor
University of Washington (replace x with u to respond)
Puget Sound Oracle Users Group
Received on Sat Sep 06 2008 - 23:48:52 CDT

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