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z/OS System Initialization Logic (IPL)



Document Author:

Riaz Ahmad


Document ID:

PRS3699


Doc. Organization:

Advanced Technical Sales


Document Revised:

07/09/2014


Product(s) covered:

z/OS







Abstract: This presentation will describe the general processing which is involved in initializing a z/OS.
The major steps described are:
- The hardware process of loading z/OS
- The loading and initialization of the nucleus
- The initialization of general system resources
- Master Scheduler Initialization
In addition, this presentation will provide you with information on how to create an IPL statistics report:
- From an SVC dump using IPCS
- Using the IPLSTATX and IPLSTATZ utilities provided on the z/OS USS tools and toys website

PRS3699 IPL Logic Flow V2.pdfPRS3699 IPL Logic Flow V2.pdf



Classification:

Hardware; Software

Category:

Operational Management




Platform(s):

IBM System z Family

S/W Pillar(s):

IBM System z Software

O/S:

z/OS

Keywords:

z/OS Initialitation, MVS Initialization, z/OS IPL, MVS IPL, Initial Program Load, NIP, Master Scheduler Initialization, IPCS, IPL Statistics

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