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This RFE is partially satisfied by CICS TS 5.4 which is generally available from today June 16th 2017.
For more information see the announcement letter https://www-01.ibm.com/common/ssi/cgi-bin/ssialias?infotype=an&subtype=ca&supplier=897&letternum=ENUS217-113
CICS Java applications running in an OSGi JVM can now use the MQ Classes for Java and the MQ Classes for JMS to access IBM MQ for z/OS from a T8 TCB instead of forcing a move to an L8 TCB.
There is no support for the DBCTL adapter to run on a T8.
This RFE is partially satisfied by CICS TS 5.4 which was announced on May 16th 2017 with a planned general availability date of June 16th 2017.
For more information see the announcement letter https://www-01.ibm.com/common/ssi/cgi-bin/ssialias?infotype=an&subtype=ca&supplier=897&letternum=ENUS217-113
CICS Java applications running in an OSGi JVM can now use the MQ Classes for Java and the MQ Classes for JMS to access IBM MQ for z/OS from a T8 TCB instead of forcing a move to an L8 TCB.
There is no support for the DBCTL adapter to run on a T8.
Allowing the MQ Attach (TRUE) to run on a T8 open TCB is something we would like to address. The RFE is being moved into 'Planned for Future release' status. Please note:
IBM’s statements regarding its plans, directions, and intent are subject to change or withdrawal without notice at IBM’s sole discretion. Information regarding potential future products is intended to outline our general product direction and it should not be relied on in making a purchasing decision. The information mentioned regarding potential future products is not a commitment, promise, or legal obligation to deliver any material, code or functionality. Information about potential future products may not be incorporated into any contract. The development, release, and timing of any future features or functionality described for our products remains at our sole discretion.
Allowing the MQ Attach (TRUE) to run on a T8 open TCB is a cnadidate for a future release. There are no current plans to do the same for the IMS Attach. This would require changes to IMS.
Due to processing by IBM, this request was reassigned to have the following updated attributes:
Brand - Servers and Systems Software
Product family - Transaction Processing
Product - CICS Transaction Server
For recording keeping, the previous attributes were:
Brand - WebSphere
Product family - Transaction Processing
Product - CICS Transaction Server
For DB2 we had the advaantage of having the associate/dissociate function from DB2 which allows us to unplug a thread from a TCB and plug it into a different TCB. So for example if there was a mixed language application say Java and Cobol that access DB2, then the thread can be moved from a T8 to and L8 and back again when required. We don't have thaat functionality with MQ or DBCTL.
That said, for MQ, the position is easier as MQ don't have TCB affinity between individual requests in a UOW, so different requests can use different TCBs.
In summary this is feasible for MQ but less likely for IMS where the YTCB management is on the IMS DRA side. It woul require associate/dissociate type functionality to be provided by IMS.
Hence this is a candidate for a future release as regaards MQ exploitation only. IMS would be a long term objective.