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Re: MS SQL Server Evaluation

From: Howard J. Rogers <>
Date: Sun, 14 Mar 2004 08:20:25 +1100
Message-ID: <40537b21$0$4227$>

"Daniel Morgan" <> wrote in message news:1079198132.351830_at_yasure...
> Howard J. Rogers wrote:
> >>RAC is not OPS. There is not a single line of OPS code in RAC as far as
> >>I know. It is a completely different animal built on the fact that
> >>everyone agrees that OPS was a good concept and a bad implementation.
> >
> > Are you sure your students don't get to post under your name, Daniel?
> > Because only a student with a limited grasp of the facts could make that
> > statement.
> >
> > The clues are there all over. The Global Enqueue Service is known by the
> > process abbreviation LMD. Uh huh. The Global Cache Service is
> > by the process abbreviation... er... LMS. Gosh. I wonder why "Global
> > Service" gets abbreviated as LMD. It wouldn't perhaps have anything to
> > with fact that OPS had a process called Distributed Lock Manager would
> > I could go on, but I won't bore you. RAC is OPS with knobs on.
> Clues or no clues ... I have good reasons for stating that it is a
> completely different code base. There are some aspects of clustering
> that are just the nature of clustering so of course the names and the
> functionality are the same. But to extend that to assume as you have
> done that RAC is OPS with knobs on is not correct.

Were you aware that Larry pulled the entire RAC course material about 4 weeks before it was due to be delivered... because it kept saying things like "RAC is an enhancement to... a development of... OPS". Larry pulled it because he wanted RAC pushed as a brand new product with no forebears, which is what the revised notes went on to do.

Sounds like you bought the company line, sorry to say.

Unless you can show me the source code for OPS and the source code for RAC, then weird hints that "I have good reasons for stating something" don't actually get us anywhere. Particularly when I can equally mysteriously add that I have extremely excellent reasons for stating that I know RAC is a development of OPS.

HJR Received on Sat Mar 13 2004 - 15:20:25 CST

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