Andrew,

Can You imagine, how such a fundamental bug, as that
ontape was unable to restore the database from archive (with KAIO 'on'),
could pass through the QA regression testing?
Only because most testing (very expensive and time-consuming)
was made in a different configuration.

Usually, QA departments have some stable OS configuration
for every part they are testing. They apply OS additional patches ONLY
if it is really necessary.

And, believe me, it's totally impossible to test the software like IDS with
all possible patch configurations (I know pretty well the nightmare
of the HP-UX patch list. Even patch bundles do not simplify that
list significantly)

Best regards,
Alexey


-----Original Message-----
From: Andrew Hamm [mailto:ahamm@mail.com]
Sent: Wednesday, February 11, 2004 8:34 PM
To: informix-list@iiug.org
Subject: Re: is it ok to use KAIO on HP-UX


Alexey Sonkin wrote:
>
> On HP, KAIO is 'off' by default.
> That means, that EVERYTHING was NOT tested properly by QA with KAIO.
> That is, You need to make comprehensive testing of the
> entire system, including backup, restore, replication, onpload
> (whatever You use in Your system) yourself.

Unlikely. Just because they supply the config like that doesn't mean it's
the only testing. If the platform is dicky and needs 200 patches installed
to make it work (HP has this sporadically) then I presume they test with all
the appropriate patches.

It might be nice to ask Informix to list all the patches, but have you SEEN
the nightmare that is the HP-UX patch list? Oy Vey!


sending to informix-list

Alexey Sonkin wrote:
> Andrew,
>
> Can You imagine, how such a fundamental bug, as that
> ontape was unable to restore the database from archive (with KAIO
> 'on'), could pass through the QA regression testing?
> Only because most testing (very expensive and time-consuming)
> was made in a different configuration.

y'know, we supply a hell of a lot of HP's, and this one hasn't come up ever.
I have had a few HP's that don't want to let more than about 5 users on if
using KAIO

My feeling is that KAIO on HP is so dodgy at times that it's pot luck
whether it will work for you. I do notice a difference IF it chooses to work
on a machine.