Re: Several instances of IDS 7.3X

What role (if any) do parameters concerning multi-processor systems play in multiple residency? If both onconfig files contain the following values (for a dual processor system) will there be any kind of contention between the two instances? MULTIPROCESSOR 1 # 0 for single-processor, 1 for multi-processor NUMCPUVPS 1 # Number of user (cpu) vps SINGLE_CPU_VP 0 # If non-zero, limit number of cpu vps to one NOAGE 0 # Process aging AFF_SPROC 1 # Affinity start processor AFF_NPROCS 1 # Affinity number of processors Thanks, Ty -- Ty O'Kelly tokelly@maxor.com "Art S. Kagel" wrote: > "Sistema Unico (CNA)" wrote: > > > > Hi !!! > > I need to know how I can set up several instances of the Informix Dynamic > > Server 7.3x in the configuration files "sqlhosts", "onconfig" and the > > ".profile" (environment file). > > Now I have only one instance but I want to add one more...please I´d like to > > see an example of several instances configuration. > > This is actually quite simple. You just create a separate ONCONFIG file > for each (name then onconfig.<servername> for example). Make the following > parameters different in each file: > > SERVERNUM > DBSERVERNAME > DBSERVERALIASES> ROOTDBS (different either in path or offset - careful!) > > You can share one sqlhosts file or use different ones depending on if > the instances need to be able to see each others' data. If different use > SQLHOSTS or INFORMIXSQLHOSTS variable to locate the right one. Place > entries for each DBSERVERNAME and DBSERVERALIAS for all or some of the > instances in the file. Servers on the same physical host must use > different service/port ids/numbers. > > In the users .profile set INFORMIXSERVER to the servername of his default > server and provide scripts to set the others when run as a 'dot' script: > > . informix.server1 > . informix.server2 > > SERIOUSLY consider using my onspaces wrapper, aspace, to manage disks so you > do not have the engines stepping on each others disks. Aspace is in utils_ak > > Art S. Kagel