Can multiple TPX started tasks that share the same VSAM files use different SMRTs?

Document ID : KB000049831
Last Modified Date : 14/02/2018
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Description:

Yes, it may be possible to use different SMRTs unless TPX is defined as a VTAM Generic Resource then all TPX started tasks must use the same SMRT.

Solution:

If TPX is defined as a VTAM Generic Resource then all TPX started tasks must use the same SMRT.

It may be possible for multiple TPX started tasks in a sysplex to use different SMRTs* as long as none of the SMRTs conflict with each other in obvious ways. For example, you could run into trouble if one SMRT specifies FASTPATH = YES and another to use NO.

If some TPX started tasks defined with the same generic resource use different SMRTs, you may see this error:

TPX5556 CA-TPX SYSPLEX SERVICES FOR NODE(vtamnode) are disabled

*SMRT = System Options Table, historically known as Session Manager Resource Table