On May 11, 11:42 am, "fitzjarr..._at_cox.net" <fitzjarr..._at_cox.net>
wrote:
> On May 11, 10:24 am, sybrandb <sybra..._at_gmail.com> wrote:
>
>
>
>
>
> > On May 11, 5:17 pm, "ame..._at_iwc.net" <ame..._at_iwc.net> wrote:
>
> > > Hi All,
>
> > > I'm not real familiar with either of the two technologies I am posting
> > > about, but, we are setting up 2 new servers to run 5 database
> > > instances.
>
> > > Currently we have 5 older machines, and they are about to go. We are
> > > trying to decide if it would be better to run VM WARE and have 5
> > > virtual machines between the 2 new machines, with the databases
> > > replicating themselves on the other for failover.
>
> > > OR
>
> > > Run Oracle RAC.
>
> > > >From what I understand, RAC will make better use of resources should
>
> > > one instance need it. But I think we're talking about multiple Oracle
> > > Homes on the same box right?
>
> > > Can anyone offer some feedback maybe on some of their experiences??
>
> > > Thanks!
>
> > For once, please do some homework prior to posting
> > For instancehttp://www.orafaq.com/faq/rac
>
> > Other than that vmware is to RAC as is apples to pears.
> > They are two completely different concepts.
>
> > --
> > Sybrand Bakker
> > Senior Oracle DBA- Hide quoted text -
>
> > - Show quoted text -
>
> I was thinking more like bagels and lox; they aren't the same but they
> can go together.
>
> David Fitzjarrell- Hide quoted text -
>
> - Show quoted text -
Only by running 2/3 instances on a single box you pay a substantial
penalty in terms of CPU, memory and I/O bandwith. Adding a vritual
machine to the mix will only make the whole thing slower. Can you not
consolidate the 5 into 1 and then either replicate to the other
machine or rac them together?
Received on Fri May 11 2007 - 10:47:04 CDT
