March 2003
Intermediate to advanced
282 pages
9h 13m
English
book
IMS in the Parallel Sysplex Volume I: Reviewing the IMSplex Technology
by Jouko Jantti, Juan Jesœs Iniesta Mart’nez, Knut Kubein, Bill Stillwell, Gary Wicks
Content preview from IMS in the Parallel Sysplex Volume I: Reviewing the IMSplex Technology
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240 IMS in the Parallel Sysplex, Volume I: Reviewing the IMSplex Technology
11.1 VTAM Generic Resources
VGR allows the user to have a generic logon to IMS. This supplies a single view of all the IMS
systems in the sysplex, with VGR determining the IMS system that the user is connected to.
This has a number of benefits. Network load balancing across the IMS systems can be
achieved, and it allows for changes to the number of IMS systems in a sysplex. IMS systems
can be added without impact and removed with only the users having to logoff and logon.
Figure 11-1 presents the major components of VGR that we discuss in this chapter.
Figure 11-1 VGR o ...
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