CMMVC9659E The command failed because a non-mirrored volume cannot be expanded with the -nofmtdisk parameter if the volume is the source or target volume of an incremental FlashCopy® mapping.

Explanation
The error occurred because an attempt was made to expand the VDisk that is the source or target VDisk of an incremental FlashCopy mapping and -nofmtdisk was specified.

User response
Run the command without -nofmtdisk parameter. 