Can I run multiple releases of Symdump CICS on the same LPAR at the same time?

Document ID : KB000124448
Last Modified Date : 11/01/2019
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Question:
The client currently has several  CICS regions running Symdump CICS r 9.1. The client will be migrating to Symdump CICS r 11 which has CAS9 CAIRIM requirements to execute program CAVHINIT. If the client Starts Symdump CICS r 11 using the CAIRIM card below will Symdump CICS r 9.1 still function properly on the LPAR and capture dumps?
PRODUCT(CA INTERTEST/SYMDUMP) VERSION(VHB0) INIT(CAVHINIT)
 
Environment:
z/os
CICS
Answer:
You can run Symdump CICS release r 9.1 and Symdump CICS release 11 on the same LPAR in difference CICS regions at the same time without any problems.
 
When you execute the Symdump CICS  r 11 CAIRIM card below
 
PRODUCT(CA INTERTEST/SYMDUMP) VERSION(VHB0) INIT(CAVHINIT)
 
This will load r 11 module CAVHCONF into system storage. Any CICS regions running Symdump CICS r 11 will require module r 11 load module CAVHCONF in storage to initialize and capture dumps.
The Symdump CICS r 9.1 version does not know about or care about the CAVHCONF module. Any CICS regions running Symdump CICS r 9.1 will not be affected by the Symdump CICS r 11 CAIRIM requirement.