Re: More than one RAC instance/database on the same machine ?

Le JeanMimi wrote:

> Hello,
>
> Is it possible to run more than one RAC instance on the same machine ?
> (to be exact : more than one RAC instance on the same IBM P690 machine
> partition - AIX 5.2) ?
>
> (we hope so ;)
>
> For instance :
>
> Machine Partition 1
> instance "A1" for the database "A"
> instance "B1" for the database "B"
> instance "C1" for the database "C"
>
> Machine Partition 2
> instance "A2" for the database "A"
> instance "B2" for the database "B"
> instance "C2" for the database "C"
>
> Same software version for all db.
> Btw is it necessary to have separate interconnect sets or can all the
> databases share the same interconnect ?
>
> Thanks in advance
>
> JM

Possible yes. Reasonable is another question. The point of RAC is high availability and scalability. Two instances on the same machine gives you neither. In fact it decreases both. So what is it that you are trying to accomplish?

I believe you would need separate interconnects but I've never tried it as it just seems totally counter-productive.

-- 
Daniel A. Morgan
University of Washington
damorgan_at_x.washington.edu
(replace 'x' with 'u' to respond)