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Status Future consideration
Workspace z/OS
Categories DFSMS SDM
Created by Guest
Created on Apr 29, 2025

change the SDM Extended Format Sequential Dataset I/O driver called by DSS DUMP/COPY/RESTORE so that it will utilize PAVs

To increase DASD space available to z/OS, IBM decided to increase volume size. Since the size of the volume increased, the number of users of that volume increased. To allow more users access to the volume at the same time, Parallel Access Volume (PAV) was invented. SDM was not updated to use PAV so when there are large number of user accessing the same volume, SDM (called by DFDSS) is waiting a long time to access the volume and cause IOS080I message to come out.   

This update will benefit all user of DASD with volumes size larger than a 3390-1 and reduce waiting time.

Idea priority High
  • Guest
    Jun 20, 2025
    .This request will not be delivered within the release currently under development, but the theme is aligned with our multi-year strategy. IBM is soliciting RFE Community feedback for this request through activities such as voting. IBM will update this request in the future.