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we throw'm on there until we hit a
predetermined capacity mark.. If it's a 100, cool.. Or if it's 20.. Just depends
on the app, volume of txn's and memory requirements....
The caveats that are considered are some of
the necessary kernal parms (semaphores, shared memory,etc).. Load it up, watch
the capacity of the server.. And push the envelope:-)
Greg
We
have about 35 instances on each node of RAC they are of course DEVL/ACPT
types.
Raj
--------------------------------------------------------------------------------
Rajendra dot Jamadagni at nospamespn dot
com
All Views expressed in this email are
strictly personal.
QOTD: Any clod can have
facts, having an opinion is an art !
Thanks for the replies so far. Considering the fact that my database is
tiny ( just around 3 GB ), How many of them can work on same server? I can
just test with 5 instances, with limited hardware. Will the CPUs be able to
take load of 100 instances? Is it worth experimenting this?
I am on 8.1.7.4 and the application is already built. I stand no chance
of changing the code. That is why using individual schemas for individual
users is not an option. Right now I am just asked if 100 instances can run
on same server and I don't have solid answer.
Just on side note, can I ask, What is the maximum number of
instances anyone has ever worked/heard being installed with in same
server?
Thanks again.
Dilip.
----- Original Message -----
Sent: Thursday, August 07, 2003 11:54
AM
Subject: Re: What books recommended
for Data Modeling ?
100 instances wohhhhh . If you are in 9i look at
possibilities like context
or label security . or creating another
schema .
-ak
----- Original Message -----
To:
"Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]>
Sent:
Wednesday, August 06, 2003 9:24 PM
> I have not heard
installing hundred database instances on same server.
> Maybe you
should think creating one instance, and then hundred schemas in
>
it.
>
> Guang
>
> On Wed, 6 Aug 2003, Dilip Patel
wrote:
>
> > Hi All,
> > Need some
suggestions/Input.
> >
> > My application database is
8.1.7, NOARCHIVELOG, WIN200,
> > total size 4 GB, more of single
user OLTP client-server application.
> >
> > Now the
customer wants to give training on this application to
hundred
trainees
> > at a time. For this he wants to install
hundred database instances on
same
> > server machine,
which *each* will be accessed simultaneously from 100
different
>
> client workstations.
> >
> > The reasons for
installing all instances on same machine are
> > - to avoid
re-installing databases on 100 workstations after each round
of
>
> training.
> > - No user should see any other user's
data.
> >
> > Please suggest if this approach is
feasible or is it at all possible.
Tested this with upto 5 instances,
and
> > it seems to work. The customer is willing to upgrade to
any hardware
needed for
> > this setup.
> >
>
> Thanks in advance for your time.
> >
> >
Dilip.
> >
>
> --
> Please see the official
ORACLE-L FAQ: http://www.orafaq.net
> --
>
Author: Guang Mei
> INET: [EMAIL PROTECTED]
>
> Fat City
Network Services -- 858-538-5051 http://www.fatcity.com
> San
Diego, California -- Mailing
list and web hosting services
>
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