With document ID c05273359 on 2016/09/15 an advisory for HPE Data Protector 9.07 was released, describing a communication problem with Zero Downtime Backup and 3PAR Storage. The article describes the symptoms and offers a workaround and a solution – the installation of a hot fix (DP0907_b109_QCCR2A69014_HF1).
The complete advisory can be read here: http://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c05273359. A valid support contract is required and you need to open a support case before receiving the hot fix.