Peter, >The one thing I still do not understand is why a 75K NP message >going thru FAST channels only does not require disk. If the default buffer >is 64K, does not the 75K message being placed into the XMIT queue leaving >the HUB require disk?
I think I can answer that. If the message is being MQPUT by the receiving channel to an onward XMIT queue *and* the sending channel that is reading that XMIT queue has an MQGET outstanding that the message satisfies, then the message will be passed directly to the application buffer of the sending channel. Voila, no disk I/O. At least that's how I think it works in the current releases of MQ. Dave Instructions for managing your mailing list subscription are provided in the Listserv General Users Guide available at http://www.lsoft.com Archive: http://vm.akh-wien.ac.at/MQSeries.archive
