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Status Delivered
Workspace CICS Transaction Server for z/OS
Categories Other
Created by Guest
Created on May 24, 2017

RELATED IDEAS

Prevent CMAS termination with EYUXC0023S and EYUXC0024S if request for dataspace storage is from end-user query

When a user in the WUI or CICS Explorer issues a query, CPSM creates a result set within the CPSM Dataspaces for the CMAS where the user
connected. If CPSM needs to expand a dataspace and is unable to do so due to storage constraints, the CMAS will issue messages EYUXC0023S and
EYUXC0024S and then terminate. This causes a outage.
.
Some of these situations can be alleviated by using WUI server
parameters DEFAULTWARNCNT, RESOURCELIMIT and GLOBALPREFILTER, but that is not effective in all situations (specifically when the resource being
queried is not backed by CRESxxxx records) and does not sufficiently protect from outages.
.
The CMAS needs to be smarter and recognize when the request for dataspace expansion is due to a user query, and if so, when storage is unavailable, simply fail the user query, return a non-zero return code,
and leave the CMAS running. This would prevent outages and improve reliability.

Idea priority Medium
  • Guest
    Reply
    |     Jun 12, 2020

    This RFE is satisfied by CICS Transaction Server for z/OS V5.6 which is Generally Available today 12th June 2020.

    CICSPlex SM API commands will now return an appropriate response rather than resulting in the termination of a CMAS if a request is causing CICSPlex SM to exceed available data space
    The following CPSM API commands have been modified to produce this a response of ENVIRONERROR and REASON of SOCRESOURCE:
    –COPY, CREATE, EXPAND, DELETE, DISCARD, GET, GETDEF, GROUP, ORDER, PERFORM SET, REFRESH, SET, UPDATE

    In addition, EYUXC0028 warning messages are now issued when the data space usage for a CICSPlex SM component such as WLM, BAS and so on exceeds any of the allocation tiers of 70%, 80%, 90%, and 95%, alerting you to potential CICSPlex SM auxiliary storage issues before they become problematic.

  • Guest
    Reply
    |     May 26, 2020

    CICSPlex SM API commands will now return an appropriate response rather than resulting in the termination of a CMAS if a request is causing CICSPlex SM to exceed available data space
    The following CPSM API commands have been modified to produce this a response of ENVIRONERROR and REASON of SOCRESOURCE:
    –COPY, CREATE, EXPAND, DELETE, DISCARD, GET, GETDEF, GROUP, ORDER, PERFORM SET, REFRESH, SET, UPDATE

    In addition, EYUXC0028 warning messages are now issued when the data space usage for a CICSPlex SM component such as WLM, BAS and so on exceeds any of the allocation tiers of 70%, 80%, 90%, and 95%, alerting you to potential CICSPlex SM auxiliary storage issues before they become problematic.

  • Guest
    Reply
    |     May 25, 2020

    There is no change in the text of messages EYUXC0023S and EYUXC0024S (Knowledge Center for v5.6) informing this new behaviour (prevent CMAS termination with EYUXC0023S and EYUXC0024S if request for dataspace storage is from end-user query).

  • Guest
    Reply
    |     Apr 7, 2020

    This RFE is satisfied by CICS Transaction Server for z/OS V5.6 which is announced today 7th April 2020 and which has a planned availability date of 12th June 2020.
    For more information see the CICS TS V5.6 announcement letter
    https://www-01.ibm.com/common/ssi/ShowDoc.wss?docURL=/common/ssi/rep_ca/7/897/ENUS220-077/index.html&request_locale=en

    Regards,

  • Guest
    Reply
    |     Nov 22, 2019

    This 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.

  • Guest
    Reply
    |     May 26, 2017

    This is a candidate for a future release.

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