Junior,
Now that I'm through reading about 'cigars', I can add a few words. IBM techs have had the ability to dial into mainframes for a long time now. From the hardware side they can view logs, error data, etc. etc. From the software side, if MVS takes a system dump for instance, there is a tool called remote screen viewing. This is a tool whereby an IBM software specialist in a support center simply logs on to the customer's site, is given access to the dataset where the dump is, and starts viewing the dump remotely to diagnose the problem. This tool can also be used to look at MVS control blocks on a 'live' system that is in some trouble, in hopes of diagnosing the problem. If storage needs to be altered to fix the problem, this can also be done, either remotely or by system programmers at the installation.
John |
