Re: Journaling

[Rob Dixon <rob.dixon@xxxxxxxxxxx>]

John

I have used journalling, with "both" images and commitment control since it 
first
came out on the System/38 - many years ago.  I did some tests then but found 
that
the impact on performance was small.  I have not kept the test results.  I
journalled all my files to one journal and still do, but I have rather less 
files
than most applications.  Since I started using journalling, I have never had to
restore any data because of corruption.  I know that a lot of installations do
not use journalling because of the myth that is the subject of your discussion
and that has been around for some time, but, IMHO, they need their heads 
testing!

John Earl wrote:

> Does anyone know of a benchmark for journaling on the AS/400?
>
> I'm involved in a discussion with someone who refuses to believe
> that journaling will not bring a system to it's knees.   I could
> create a test, but it would be better if this information came
> from some independent third party.
>
> Anybody have a reference from a reputable source?

Best wishes

Rob
________________________________________________________

Erros plc

44 (0) 1844 239 339

http://www.erros.co.uk - The AS/400 Neural Database for the Internet

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