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Status Not under consideration
Workspace z/OS
Categories DFSMS SMS
Created by Guest
Created on Aug 9, 2024

Enable ZHYPERWRITE for VSAM and VSAM-RLS in IGDSMSxx

PTF UJ92354

Following this documentation : https://www.ibm.com/docs/en/zos/2.5.0?topic=performance-zhyperwrite

It's said we should configure "ZHYPERWRITE=YES option was specified in the ACB or RPL.", so far I don't understand where to set this parameter. On CICS RPL is used only for bibs of related products, and it's not possible to modify the ACB. 

Idea priority Urgent
  • Guest
    Reply
    |
    Aug 12, 2024
    Sorry, I might have been short in my response. This is what I would like to say

    ?VSAM?s native APIs have been updated to allow the caller to exploit the function, and you are reading the documentation on how to do that. If you believe that CICS (the caller for VSAM) users would benefit from being able to exploit the function on certain data sets, please submit a request to CICS.
    However, it is not a function that should be turned on globally as the exploiters need to understand the pros and cons of using this function. For that reason, this request is being rejected.?
  • Guest
    Reply
    |
    Aug 9, 2024
    it's not appropriate to have a system level parameter for VSAM zHW. The level of control is by the individual VSAM exploiter. Please contact CICS for this case.
    1 reply