MSO Glossary of Terms

MSO

Multi-Session Option is an Information Builders product offering that provides a multi-user MVS address space for executing FOCUS commands and applications.

region

An alternate term for an MVS address space

Load Balancing

An MSO feature that automatically routes an MSO user to one of several MSO regions.

group, Load Balancing

A named collection of MSO regions that comprise a Load Balancing group.

primary or initially contacted MSO region

An MSO user initiates a Logon request to a Load Balancing group by issuing a normal MSO Logon to one of the MSO regions in the group. This first step is referred to as the primary MSO region or the initially contacted region.

destination region

This is the MSO region that the user is routed to by the MSO Load Balancing algorithm.

MSO Configuration File

This file is a text file that contains the startup specifications for the MSO region.

communication data sets

A pair of sequential files that are dedicated to an individual MSO region. These data sets provide the basis for access to MSO for TSO and CICS users.

service block

The MSO configuration file must have at least one service block defined that specifies PROGRAM=FOCUS. This is the basic definition of the MSO FOCUS server. In most MSO environments only one service group is defined per MSO region.

service name

Each service block definition is started by specifying SERVICE=service_name. This name is referred to as the service name.

application name

A new service block keyword to support Load Balancing. It associates a meaningful name such as "PAYROLL" or "ACCT" with one or more MSO Load Balancing regions in an MSO Load Balancing group.


Information Builders