The following changes are made for z/OS V2R1 as updated February 2015.
Support for Multi-Target Mirror. For more information, refer to Using the Advanced Copy Services enhancements.
Support for multiple Incremental FlashCopy targets (Incremental FlashCopy Version 2). For more information, refer to Using the Advanced Copy Services enhancements.
Support for workload-based write pacing. For more information, refer to Using the Advanced Copy Services enhancements.