Hello Peter,.> I this what you've been asking for? .well, let's say your reply helps me to understand better which processor (either the CP or the SAP, in this case)is involved when a dataset is transmitted from z/OS to another box. I understand that both CP and SAP are involved..Which might mean that if my zBC 12 is, say, 80% CPU busy, a given outbound trasmission will be slower comparedto the same transmission which takes place when the zBC 12 is only 20% CPU busy. .What my co-workers wants to know is whether an outbound ftp transmission on a zBC 12 can be assigned to a processorwhich works a full speed, or , viceversa, the performance of the transmission is affected by how busy the CP and/or the SAP is/are.. Walter Marguccio z/OS Systems Programmer BELENUS LOB Informatic GmbH Munich - Germany.P.S. Please, apologize if the formatting of my post makes the reading confusing.
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