Would it be correct to say that any "piece" that when removed would result in a non-functional OS would then belong to the OS? I was thinking about JES. Nothing works without JES, right?
-----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Van Dalsen, Herbie Sent: Tuesday, August 29, 2006 11:01 AM To: [email protected] Subject: Re: What part of z/OS is the OS? My humble opinion would be the following... 1. OS = Operating system i.e. Any part that operate the system 2. Function = a) handle all requests from users / other systems... This implies that any command thrown at it be it MVC or OI, is handled by the Operating system. b) notify users / other systems of its current status... This implies that any part of the system writing SMF records and or send error messages. So all error handlers on the lowest level should be included. Any program etc that handles requests on the lowest level should be included. What would not be included is the next layer... IDCAMS / DFSMS that intercepts the base error codes and tries its best to send a reasonably understandable error code. The problem comes when the distinction between layer 1 and 2 becomes fuzzy ? Regards Herbie van Dalsen --- ---------------------------------------------------------------------- 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

