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Status Delivered
Workspace CICS Transaction Server for z/OS
Categories Runtime
Created by Guest
Created on Aug 28, 2018

RELATED IDEAS

Lift restriction impose by the number of non system LX

Currently the maximum number of linkage index (LX) allowed for CICS is 2048.

In our shop we have over 700+ CICS regions running in the same LPAR. Each CICS consumes 2-4 LX. This leaves no room for other batch job which has the need to use LX and cause S053 abend. And this further restrict the expansion of number of CICS running in an LPAR

This 2048 limit should be abolished and move up to above 2048. As far as we understand, DB2/MQ are using LX above 2048

Idea priority High
  • Guest
    Reply
    |     Apr 26, 2024
    CICS Development: CPSM is able to use a system LX. We don't believe that there is any use of 12-bit LX remaining in CICS.
  • Guest
    Reply
    |     Apr 12, 2024
    The use of 12-bit LXs by CICS has been reduced in CICS TS 6.2 which has been announced and will GA June 14th 2024. MRO, XRF and Shared Data Tables can use 16-bit LXs.

    See Announcement letter https://www.ibm.com/docs/en/announcements/AD24-0164
    1 reply
  • Guest
    Reply
    |     Feb 16, 2023
    CICS Development: This is something we would like to address. The Idea 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
  • Guest
    Reply
    |     Nov 22, 2021

    This requirement has been re-assessed. It is not likely that this will be implemented in the next 12-24 months and so it is being declined at this point. The requirement will be kept in the RFE system and might be reassessed in the future. You also have an opportunity to resubmit in twelve months time if you wish it to be reconsidered then.

  • Guest
    Reply
    |     Oct 1, 2018

    This is a candidate for a future release

  • Guest
    Reply
    |     Sep 12, 2018

    I'm referring to the Linkage Index (LX) in the NSYSLX= parameter in MVS.

    https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.2.0/com.ibm.zos.v2r2.ieae200/ieae200316.htm

    If you can take a look of the PMR 60954,000,738, this is the conversation we have with IBM on the issue regarding CICS occupying signficant number of LX and causing issue to other batch job

  • Guest
    Reply
    |     Sep 10, 2018

    Are you referring to the current limit of 2047 members in an XCF group, or something else ?

  • Guest
    Reply
    |     Aug 30, 2018

    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
    Component - Runtime
    Operating system - IBM z/OS
    Source - None

    For recording keeping, the previous attributes were:
    Brand - Servers and Systems Software
    Product family - z Systems Software
    Product - z/OS Communications Server
    Component - Other
    Operating system - IBM z/OS
    Source - None

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