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Status Not under consideration
Categories Runtime
Created by Guest
Created on Aug 20, 2025

Add command to deallocate file

Many customers need to close and deallocate files for a certain functionality, i.e. batch-processing during the night. Currently this can be achieved only via 3rd-party-products. The functionality of close, allocate (via SET command) and open is available, but deallocate is missing.

Idea priority Medium
  • Guest
    Sep 20, 2025
    CICS Development:
    If a file is named in a DD statement in the CICS JCL then it is statically allocated to that CICS region. If there is no DD statement then CICS will dynamically allocate the file when it is opened and will deallocate it when it is closed. There is no specific SET FILE command to allocate a file and also no need to provide a facility to explicitly deallocate a file.

    If dynamic allocation and deallocation of the file is required then it should be used via a FILE definition without a corresponding DD statement in the CICS JCL.The file will then be deallocated at close time and available for use by other processes.