ANTF0480E

Explanation
The FlashCopy® Withdraw
request specified tracks in the following relationships:In a full volume Incremental relationship
In a full volume relationship with a space efficient target
In a remote, full volume, preserve mirror relationship

The XTNTLIST parameter did not specify a single, full
volume extent. The FlashCopy Withdraw
can include a single, full volume extent in the XTNLIST parameter.
If the XTNTLIST keyword is omitted, the withdraw is a full volume
request.

System action
FlashCopy Withdraw
request is rejected.

System programmer response
Check the FlashCopy Withdraw request for a valid
combination of the relationship and a full volume extent.
After making any changes or corrections, resubmit the FlashCopy Withdraw request.

Source
ESS FlashCopy