In this post, you’ll learn more about the Error ERROR_VOLMGR_NUMBER_OF_DISKS_IN_MEMBER_INVALID – 0xC0380055 that is returned when working with the COM-based APIs in Win32
Win32 COM Error
ERROR_VOLMGR_NUMBER_OF_DISKS_IN_MEMBER_INVALID – 0xC0380055
Win32 COM Error Error Description
The specified number of disks in a plex member is invalid.