Improve FICON channel utilization for CA DISK jobs

book

Article ID: 185437

calendar_today

Updated On:

Products

CA Disk Backup and Restore - MVS CA DISK BACKUP AND RESTORE- ADD-ON OPTIO CA DISK BACKUP AND RESTORE

Issue/Introduction

Do some SYSPARMS like IDRCSIZE, IDRCUSEDx, IOMAXREX can improve FICON channel utilization?

Environment

Release : 12.5

Component : CA Disk Backup and Restore

Resolution

The IDRCSIZE, IDRCUSEDx, IOMAXREX SYSPARMS don't have any impact in channel utilization.
IOCHNBLK and SYNCDEVS can improve performance, but IOCHNBLK not nearly as much as SYNCDEVS.