Purpose
ES150 introduces the base elements ,optional fetures,and server provided in Z/OS and OS 390. It focused on the system service facilities provided by the Z/OS and OS/390 Base Control Program(BCP).
Prerequisites Learners should have practical experience with logging on to TSO and working with JCL. This experience can be obtained by attending to ES10-Fundamental System Skills for Z/OS and OS/390 .
Unit 1 Z/OS and OS Overview
What is Z/OS?
The ultimate mainframe operating system
-A packaging of over 70 different solutions
- Base operating system.
- Many industry exclusives:workload manager,parallel sysplex,intelligent resource director
- Key e-business services:networking,security,storage management,distributed files and print
-Exploiting the techs of the IBM E Server zSeries 800,IBM E Server zSeries 900.
notes:highly secure,high-performance enterprise OS on which to build and deploy Internet and Java-enabled applications,providing a comprehensive and diverse application execution environment.
Z/OS is the next generation of OS 390
Z/OS and OS 390 play a major role in the implementation of today's and future IS installation by integrating the heterogenous components to a solution that is able to cope with the complexity of this enviroment
Z/OS and OS 390 can run on the IBM eServer zSeries 800,900 and 990 machines,which are designed for the high-performance data and transaction needs demanded by next generation e-business.
Before the introduction of OS 390,the system 390 consisted of many different products that are required to be ordered ,installed and maintained seperately.After that,Z/OS and OS 390 can be ordered by customers and customers can receive a tailored package of all the base and optional products they need for their IS installation. IBM makes sure that all products shipped with the order are at the proper release level, and that all prerequisites are met. The z/os and OS 390 packages come in a pretested and easy-to-install form,whichi reduces installation and testing time considerably.Once Z/OS or OS 390 is in place ,IBM provides several differenct ways to keep your installation up-to-date.
Historical Perspective
notes:The BCP for z/OS and OS/390 is built on the MVS operating system. BCP and MVS can be used interchangeably in the documentation for z/OS and OS 390.
MVS/370->MVS/XA->MVS/ESA(open c/s solutions,object tech,network connectivity)
VTAM,TSO/E,ISPF/PDF,RACF,DFSMSdfp,JES2/JES3,SMP/E
to upgrade one product may involve upgrading mutiple other products to solve product dependencies.
IT Requriements:
1.Availability and Reliability: automatic recovery capabilities,dynamic reconfiguration,robustness as a minimum computer infrasture.
2.Application technology choice:Demand for new techs.Demand for shorted application dev cycles and easier maintenance.
3.Service to end users: easy-to-use interfaces and continuous availability of the applications.
4.Enterprise-wide systems management,network and security integration.
Integrated Solutions
DFSMSdfp SNA
JES2/JES3 IP
DFSMSdfp SNA
JES2/JES3 IP
GDDM Unix
Assembler DCE
TSO/E LE
ISPF BCP
BookManager RMF
RACF SMP
Z/OS.e‘s new workloads consisted of Websphere Application Server /Commerce,Domino and ISV's middleware written in Java ,C/C++,J2EEAssembler DCE
TSO/E LE
ISPF BCP
BookManager RMF
RACF SMP
SMP/E
the last release of os 390 was Release 10 delivered in Sep.2000.The first release of z/OS was delivered March 2001.
Each release has General Availability(GA) data and an out of service date.
Elements and Features
To develiver the release in customer-tailored version,z/os and os/390 consist of base elements and optional features(priced or no charge).The IBM-supplied SYS1.PARMLIB member that defines product enablement policy for a system is IFAPRD00.
the last release of os 390 was Release 10 delivered in Sep.2000.The first release of z/OS was delivered March 2001.
Each release has General Availability(GA) data and an out of service date.
Elements and Features
To develiver the release in customer-tailored version,z/os and os/390 consist of base elements and optional features(priced or no charge).The IBM-supplied SYS1.PARMLIB member that defines product enablement policy for a system is IFAPRD00.
notes: elements of z/os ,categoried by functional group
1.system services 2.communication services 3.application enablement services 4.Distributed computing services 5.system management and security services 6.LAN services 7.z/os unix system 8.softcopy publications support 9.e-business services
z/OS.e- a specially priced z/os offering available at a fraction of the cost of z/os.
1.run on z800 only 2. for enterprise and e-business applications only(can not run traditional workload such as CICS,IMS,COBOL,FORTRAN)3.same code base as z/os.
1.system services 2.communication services 3.application enablement services 4.Distributed computing services 5.system management and security services 6.LAN services 7.z/os unix system 8.softcopy publications support 9.e-business services
z/OS.e- a specially priced z/os offering available at a fraction of the cost of z/os.
1.run on z800 only 2. for enterprise and e-business applications only(can not run traditional workload such as CICS,IMS,COBOL,FORTRAN)3.same code base as z/os.
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