Virtual zLinux servers on the...

IBM Global Services – HONE/IBMLink ADM

© Copyright IBM Corporation 2003Virtual zLinux servers on the mainframe

Virtual zLinux servers on the mainframe

Used by IBM for IBM

Virtual zLinux servers on the mainframe2

IBM Global Services

© Copyright IBM Corporation 2003

Introduction

Name:Marcel Theijsmeijer

Role: Business Area Manager

Responsible for development and support of business applications that support the ordering process


IBM Global Services


Introduction

Name: Richard van Wel

Role: IT Solution Architect

Responsible for design and architecture


IBM Global Services


Virtual zLinux servers on the mainframe

Content of this presentation consists of 2 parts:

Minutes Subject

10 Introduction in the business environment

25 Architectural overview


IBM Global Services


The Ordering System: HONE

Hardware: 2 mainframe complexes, zSeries

Germany and the USA

OS: z/VM

Infrastructure : access, security, country set up

User Interface : green screens & web enabled

Users : Sales, Business Partners & customers


IBM Global Services


The business

A salesperson who wants to solve a HW problem for a large customer in Europe needs to know:

- Customers configuration- Product Lead time - Prices

The HONE/Link applications provide this information, without HONE/Link no order and no business.


IBM Global Services


The problem 6 years ago

The problemYou cannot sell & promote e-business when you let your Business Partners use “green screens”

The solutionWeb-VM

Key success factorsLow cost, fast delivery, no change on back end


IBM Global Services


Today…..

The business problemVM Web is rather unique, it is getting more and more difficult to connect to other systems, internal and external.

The solutionzLinux

Success factorsOpen source, no change on back-end, comply with corporate standards, easy connection with other applications

IBM Global Services – HONE/IBMLink ADM

© Copyright IBM Corporation 2003Virtual zLinux servers on the mainframe

From legacy green screens to e-business on demand

Richard van Wel


IBM Global Services


HONE/LINK - from legacy green screens .....

zSeries mainframe z/VM

HONE/LINK

Type an option number 1. option 12. products3. ordering4. miswcellaneous

==x

green screen Orderingapplications

Inventory

Price

up to1997

- all processing and data on the mainframe- no integration with the user environment

Publications


IBM Global Services


..... via application analysis .....


Type an option number 1. option 12. products3. ordering4. miswcellaneous

==x

1997

to otherinternalsystems

Applicationlayer

application interfa

ce

Front endlayer

HONE/LINK

- split in logical layers- define application interface

- work effort depends on application- good structure means less work

InventoryPriceOrderingPublicats

Databaselayer


IBM Global Services


..... to web enabling ....


workstation


1998 - 1999


Web servers HONE/LINK

- install simple native VM/CMS HTTP servers- rewrite application front ends as CGI scripts

CGI scripts

- open standards TCP/IP, HTTP, HTML- transactional, graphical Web interface - integration with the end user environment- less than 5% of legacy code affected

http

HONEWeb/LINKWeb

CG

Is

HTML


IBM Global Services


..... to web services .....


2000 - 2001


HONE/LINK

- add XML support to Web interface- agree interface with client Web Portal

- XML is open standard for Web integration- allows clean interfaces between Web sites- used between HONE/LINK and IBM BP portal

httpXML

BP portal

BP

http

htm

l

client

server



IBM Global Services


..... to Linux WebSphere .....


2002 - 2003


HONE/LINK

- install zSeries Linux guest under z/VM- install WebSphere on Linux guest

- Linux + WebSphere = latest Web technology- preferred e-business platform- positioned for integration via Web Services

InventoryPriceOrdering

- port CGI scripts to Java servlets and JSPs

portal

LinuxIH

S

DB

2 JSPsservlets

WASC

GIs


IBM Global Services


..... to e-business on demand


2003 and beyond


HONE/LINK

- analyse server usage in portals and farms- port servers with low or skewed usage to virtual Linux servers on z/VM zSeries

- benefits from mainframe economy of scale: HW, SW, NW, people, space, power- fast deployment of additional servers on demand

InventoryPriceOrdering

portal

LinuxIH

S

DB2 JSPs

servlets

WAS

server farm

Linux

etc.

Virtual zLinux servers on the...

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