Description of problem: Server Version: 4.2.12-s390x Disk IO Utilisation and Disk IO Saturation data is empty for Minidisks and dasds (both use device name /dev/dasd*) could be same issue as Bug 1673787 ?
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2020:0581