CMMVC8834E The -copyrate and the -autodelete cannot be modified if the target volume is a Safeguarded FlashCopy® mapping.
Explanation
When the mapping is in the copying state, the -copyrate determines the priority that is given to the background copy process. When -autodelete is set to on, the mapping is automatically deleted when the mapping reaches the idle or copied state and the progress is 100%. You cannot modify these parameters when the target volume is a Safeguarded backup.