Re: Openlink/Informix5 Question

aansari@lstaraxp.tamu.edu (Arif Ansari) writes: > I have a question for you ODBC/Openlink gurus out there. My computing environment > is as follows: > > 2 Alpha OSF1/Unix server each running Informix 5 > Multiple OSF1/Unix clients > Multiple PC/Windows Clients > TCP/IP > > For my clients to access both servers, do I require the purchase of 2 > Openlink Request Brokers, or just one. I am not clear about the server > side requirements from the Openlink Whitepaper or the User's Guide > & Reference Manual. I have two configurations in mind and need help in > clarification to which is valid: > > a) Need 2 Openlink Req. Brokers and 2 database agents, 1 for each of the 2 > Alpha/OSF1/Informix5 database servers. > > b) Need 1 Openlink Req. Broker and 2 database agents. The Broker runs on the > one primary database server. Each of the two servers has database agents > on them. The rulebook is configured (by setting mapping rules) to find the > other (secondary) database server (over the network) and activate its own > database agent. > > Is option b) a feasible option? Appreciate any help. If you have I-Star installed on both machines, I believe you could get away with one OpenLink request broker & database agent on just one of the two machines, but I wouldn't recommend it. (You would not need a database agent on the second machine.) With a single request broker/agent, you'll be hitting the network twice to get to the server on the machine without the broker/agent. Option "a" would be the best in terms of performance. HTH Irwin Goldstein Objective Software Systems, Inc.