Had this problem on an AIX system with 4 instances. What I did was create a 
nodename for each instance. CLIENT1_INSTX and CLIENT1_INSTY. Each instance has 
it's own DSM.OPT file that is pointed to by the DSMI_CONFIG environment 
variable set in the USERPROFILE for the instance.

Shout if you need more info.
Bill Boyer
DSS, Inc.
>
> From: "Wholey, Joseph (TGA\\MLOL)" <JWholey AT EXCHANGE.ML DOT COM>
> Date: 2002/11/01 Fri PM 03:36:29 EST
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: client configuration for DB2
>
> How would you prevent the following problem/scenario from occuring?
> One client
> Two separate instances
> Each instance has a DB by the same name.
> e.g.    Client1
>         InstX has a DBa
>         InstY has a DBa
> If you issue a q fi of InstX's DBa, you can see IntY's filespace.  How can 
> you prevent this?
>
> Regards, Joe
>
>
>