A FlashCopy® establish request failed because one or more target tracks contained within the extents specified was found to already be a target track in a FlashCopy relationship. This could be the result of an attempt to issue an establish specifying devices (source and target) already in an existing relationship. For example, an establish with INCREMENTAL(YES) can have been specified, but the full volume relationship was not initially established as an incremental relationship.
FlashCopy Establish request not processed.
Use the FlashCopy query request to determine the status of the target device specified on the FlashCopy establish request. See z/OS DFSMS Advanced Copy Services for examples of FlashCopy query output. The FlashCopy query output does not provide information about a track basis, but you can be able to make this determination based on the extents you specified on the establish request. This message can also be received in the case of an establish request which is completed by the ESS after missing interrupt handler processing has been initiated. Resubmit the request. If the intention is to use Incremental FlashCopy, then the original relationship must be withdrawn and established with INCREMENTAL(YES). If the request continues to fail, search problem reporting databases for a fix for the problem. If no fix exists, contact the IBM® Support Center.
ESS FlashCopy.