Re: Mirroring on 10.10

From: Georgios Petrides <petrides_at_ecst.csuchico.edu>
Date: 1996/07/26
Message-ID: <4t98b7$a3b_at_charnel.ecst.csuchico.edu>#1/1


In article <4svc6s$1l3_at_atlas.aethos.co.uk>, Steve Holdoway <steve_at_aethos.demon.co.uk> wrote:
>
>Initial results indicate much less of a performance increase from the
>single processor D350 that is used for development. This machine is
>set up to use asynchronous IO and the kernel is configured as
>recommended by HP and Oracle.
>
>Using glance, the machine seems to have no bottlenecks anywhere, is
>just doesn't seem to be running at its full potential. I suspect that
>it is the disc mirroring that is the problem. Do I need to rejig the
>kernel for that as well?
>
>Any suggestions will be extremely gratefully received... explaining to
>out customer just why they need this machine when it doesn't work to
>its full potential could be very embarassing!
Look into tuning Oracle; Oracle is a very powerful beast but needs a lot of attention too. If the D series was running slow with 40-50 users, and increasing the power did not make any difference, the logical explanation would be to tune the database. If the database takes forever to find info, because it needs tuning, it will still be a problem even if you get 12 processors.
With the configuration you mentioned above on the HP, the only things you should check is if your memory buffer is tuned and make sure that you have no bottlenecks in the disk I/O (and of course that you have plenty of memory)
George Petrides
Copelco Capital Received on Fri Jul 26 1996 - 00:00:00 CEST

Original text of this message