Dave and Magen This looked interesting so I had a quick chat with a colleague and - guessing a bit - we think the measurements you see are a consequence of a particular technique used by High Performance Data Transport (HPDT) channel programming called a "never-ending channel program", more accurately a "seldom-ending channel program". We think that this may well show an apparent 100% utilization on the "read" side in the RMF report since it's always busy looking for work down in the bowels of the channel logic. It's also possible that the "Device Disconnect time" is explained by the "seldom-ending channel program"; probably I'd be able to be surer if I had more of a clue as to what "Device Disconnect time" in an RMF report actually meant.
The XCF link using HPDT is necessarily full-duplex. The VTAM SNA subarea link using a single subchannel address is necessarily half-duplex that being the nature of the beast. Since you don't actually have a performance problem - and your utilization is low - "it ain't broke and it don't need fixing" - and it's very probably quite normal. Perhaps someone who really knows what the RMF reports report on can be clearer. Chris Mason - and, TGCWCID, Kevin Crombie ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
