In this post, you’ll learn more about the Error ERROR_VOLMGR_PLEX_NOT_RAID5 – 0xC038003F that is returned when working with the COM-based APIs in Win32
Win32 COM Error
ERROR_VOLMGR_PLEX_NOT_RAID5 – 0xC038003F
Win32 COM Error Error Description
The operation is only supported on RAID-5 plexes.