Large size fixed block architecture device support over FICON channel connections

摘要

Systems and procedures are provided to enable large size fixed block architecture (FBA) device support over FICON. The FBA devices may have a size greater than 2 terabytes. For example, in known storage systems, an FBA device size may be 64 terabytes and an architecture provided for 512-terabyte devices, and the described system supports such large, or even larger, FBA devices. The system may be used with existing fixed block command sets.