Alan wrote: "You can run 100 sessions on a 390 but I don't think you get the equivalent of 300Ghz of CPU power."
With the new TREXX, you're probably talking 20-30Ghz, assuming 1.2 Ghz engines x 32. One of the driving factors of either the multiple virtual machines or the multiple user model is that, in most applications, most of the time, a single user is idle and your 300Ghz of power is mostly idle. And a lot of time in most apps is waiting on I/O. (Just listen to your PC disk click away when you're starting an app, saving data, or moving from app to app on the desktop). With the multi-user model, when the user really does wake up, he has access to multiple gigahertz processors. And those 300 small machines would probably only access 9 TB of data cut up into 30GB pieces. ===== Jim Sibley Implementor of Linux on zSeries in the beautiful Silicon Valley "Computer are useless.They can only give answers." Pablo Picasso __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com
