Re: Multiple 10g instances (standard edition) one machine / resource allocation

On Sep 5, 3:49 pm, DA Morgan <damor..._at_psoug.org> wrote:
> Shakespeare wrote:
> > "DA Morgan" <damor..._at_psoug.org> schreef in bericht
> >news:1189004915.590055_at_bubbleator.drizzle.com...
> >> Shakespeare wrote:
> >>> "jeremy" <jeremy0..._at_gmail.com> schreef in bericht
> >>>news:1188918123.470027.6110_at_57g2000hsv.googlegroups.com...
> >>>> It has been suggested that we could set-up a new production
> >>>> environment on 10gR2 (2 instances) using VMWARE. This would enable us,
> >>>> as I understand it, to allocate the resources of the server in the
> >>>> ratio we choose between the different databases as each would
> >>>> effectively be running on its own machine.
>
> >>>> I can see that Oracle does not support installation of its products on
> >>>> VMWARE
> >>>> (see
> >>>>https://metalink.oracle.com/metalink/plsql/f?p=130:14:899382291380811...
> >>>> )
>
> >>>> So to me it would seem foolhardy to progress with that idea.
>
> >>>> Is there any technology in 10gR2 (Standard Edition) that enables the
> >>>> allocation of a finite set of resources that may not be exceeded?
>
> >>>> Thanks
> >>>> --
> >>>> jeremy
>
> >>> Apart from all the licensing issues etc, I know by experience that some
> >>> Oracle products run on VMWare very well, but other DO have problems (at
> >>> least on VMWare Workstation, not sure about ESX) Oracle 10g Application
> >>> Server Infrastructure for example causes masses of Page Faults, and keeps
> >>> using 5 to 10% CPU while doing nothing (except page faults). It's a known
> >>> issue, but right: unsupported, so.....
>
> >>> But under ESX we have seen different behaviour as well. Configs running
> >>> perfectly under 'real iron' started to show faulty behaviour when ported
> >>> to VM. (In this case, Win2003 server).
>
> >>> So you may be replacing one problem with an other.....
>
> >>> Shakespeare
> >> Lets take as one example Oracle RAC. Oracle uses a VMWare environment to
> >> teach their RAC classes. I find that horrifying as I don't think people
> >> learn real-world skills in unreal environments. But obviously RAC is
> >> stable running on VMWare. That does not mean it will scale and that does
> >> not mean it is easy to support when configured creatively which is the
> >> point of most VM environments.
> >> --
> >> Daniel A. Morgan
> >> University of Washington
> >> damor..._at_x.washington.edu (replace x with u to respond)
> >> Puget Sound Oracle Users Group
> >>www.psoug.org
>
> > Teaching on VM is ok, you can't expect all students to buy multiple servers.
> > This does not mean one should use it as a production environment....
>
> > I'm glad you don't teach Life Saving ..... which is usally taught in unreal
> > environments (we can't kill em all, can we?)
>
> > Shakespeare
> > (And I'm still glad you don't sell cars too ;-)))
>
> I worked as a lifeguard for several years and taught lifesaving. We
> taught how to drag a person to shore by jumping into the water and
> dragging back a real person. Sometimes that person would pretend to
> be unconscious ... sometimes they would fight as if in a panic.
>
> If this was taught using the same skill set used to teach software I
> imagine they'd just make you watch PowerPoint slides while someone
> threw buckets of water at you. <g>

With 11g I imagine it's more like give everyone a kiddie pool to sit in and show them how to use an iPhone to watch David Hasselhoff. <g>

jg

--
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