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Status Delivered
Workspace CICS Transaction Server for z/OS
Categories Runtime
Created by Guest
Created on Aug 23, 2012

RELATED IDEAS

Extension to CPSM event detection and routing - for VSAM RLS and SMSVSAM failures

For CICS transactions under CPSM WLM control there is a requirement for WLM to detect when a resource that the transaction is dependent upon becomes unavailable. In this instance, the customer is reliant on VSAM RLS files to complete the transaction. If the SMSVSAM address space fails, all access to VSAM RLS files in the affected LPAR become unusable. CICS is notified with a return code of 16 and the files are closed.

In CICS TS 2.1/2.2 code was added to detect conditions when DB2 was unavailable. This was achieved by setting field DYRABNLC (MVS WLM abnormal condition), in copybook DFHDYPDS.

This requirement requests a similar capability for VSAM RLS but would be equally applicable to any resource the transaction is reliant upon - such as WebSphere MQ or IMS.

The requirement is therefore that CPSM detects such a condition and routes eligible transactions away from the affected CICS regions or LPARs until such time as the problem is resolved.

Idea priority Medium
  • Guest
    Reply
    |     Dec 11, 2015

    This RFE is satisfied by CICS TS 5.3 which is generally available from December 11th 2015.

    CICS now informs the z/OS Workload Manager when requests fail because connections to IMS, IBM MQ, and VSAM RLS are unavailable. This extends the support for connections to DB2 in previous releases. The CICSPlex SM dynamic routing program uses this information to avoid routing more work to a CICS region to prevent the "storm drain effect".

  • Guest
    Reply
    |     Oct 6, 2015

    This RFE is satisfied by CICS TS 5.3 which was announced on October 5th 2015 with a planned general availability date of December 11th 2015.
    For more information see the announcement letter http://www.ibm.com/common/ssi/cgi-bin/ssialias?infotype=an&subtype=ca&supplier=897&letternum=ENUS215-363

  • Guest
    Reply
    |     Oct 5, 2015

    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

  • Guest
    Reply
    |     Aug 4, 2014

    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
    |     Dec 14, 2012

    This would be a great addition.

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