Multinode Persistent Sessions: The Sysplex Data Sharing End Game. Bryant L. Osborn Bank of America. Introduction. APPN - (Advanced Peer-to-Peer Networking) VTAM facility introduced in the late 1980’s.
Bryant L. Osborn
Bank of America
(Besides software discounts)
Irwin F. Kraus, “The Parallel Sysplex as SMP: Viewing Performance, Capacity, and Scalability through a Familiar Lens”, CMG96 Proceedings, December, 1996
“When a user architects a parallel sysplex, the user decides how much data is to be shared, usually much less than 100%. The user decides how many processing nodes will be used and what capacity and performance. The user-system-architect has a lot of control over minimizing overhead and maximizing scalability in a ‘parallel sysplex computer’ ” - Irwin Kraus
The $64,000,000 question: What good is it to have a single gigantic workload if the organization cannot afford even a brief outage of the entire system?
Is anyone really willing to put all their proverbial eggs in one basket, and run the risk that a single outage could take down the entire workload?
Wouldn’t it be nice is there was a way that users could be reconnected to another MYCICS on CEC-B by reconnecting them through a
VTAM-B? What a great idea! But is it possible? What you call it?