Oracle FAQ Your Portal to the Oracle Knowledge Grid
HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US
 

Home -> Community -> Usenet -> c.d.o.server -> Re: Can OFA and multiple instances lead to DBWR contention

Re: Can OFA and multiple instances lead to DBWR contention

From: John Jones <john.jones_at_duke.edu>
Date: Fri, 20 Jul 2001 09:02:52 -0400
Message-ID: <9j99jg$3ks$1@news.duke.edu>

Please expand on that thought. Why would numerous SIDs be a VERY BAD IDEA.???
We have IBM's M80 servers. They have multiple processors, 8 Gig of RAM, and configured on Shark disk. One instance on this server would have little to no load on it. On some of our smaller servers we have multiple instances because they are either small or have very little activity. Are you saying each of these should also be on seperate servers????

--
John Jones
Senior Oracle DBA
Duke University, OIT
john.jones_at_duke.edu
"Sybrand Bakker" <postbus_at_sybrandb.demon.nl> wrote in message
news:tle4mtt4qgl619_at_beta-news.demon.nl...

>
> "Akinwande Seigmund Walter-Johnson III" <asjohns_at_midway.uchicago.edu>
wrote
> in message news:8dE57.65$_4.4568_at_news.uchicago.edu...
> > All,
> > Running multiple instances on one machine and using OFA requires that
all
> > data for all instances be written to
> > one or more disk's dedicated for data.
> > Couldn't contention arise between all DBWR's for the numerous SID's ?
> >
> >
> >
>
> Numerous SIDs on one server are a VERY BAD IDEA anyway, OFA or no OFA.
>
> Regards,
>
> Sybrand Bakker, Senior Oracle DBA
>
>
>
Received on Fri Jul 20 2001 - 08:02:52 CDT

Original text of this message

HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US