A FlashCopy® Establish command was issued for source device device-info and extents were specified. The target volume is a space efficient volume and either SETGTOK(FAILREL) or SETGTOK(SWI) was also specified. Only full volume relationships can have a space efficient volume as the target.
FlashCopy Establish command fails.
If the intent is to establish a FlashCopy relationship to a space efficient target volume, issue the command again as a full volume request. If the intent is to establish a FlashCopy relationship with extents, issue the command again with a non space efficient volume as the target devices.
ESS FlashCopy