Documentation

White papers

White papers

Solitarie Interglobal: Tracked, Hacked and Attacked
Who wins, who loses and why, based on a quantitative analysis of the business differentiators among IBM System z and other vendor security technologies.

Private cloud and mainframes
Forrester Consulting examines "The Role Of Mainframes In Cloud: To Meet The Full Range Of Reliability And Security Needs"

z/VM Migration: Migrating the User Directory and RACF Environment (287KB)
This paper describes a process based on a set of REXX execs that are designed to migrate the user directory and RACF environment from the existing z/VM system to the new z/VM system or SSI cluster.

Comparing Virtualization Alternatives - What's best for your business?
In this paper, Solitaire Interglobal Ltd. provides a quantitative analysis of the business differentiators among x86, Unix, and System z virtualization technologies.

High-Availability of System Resources: Architectures for Linux on IBM System z Servers (271KB)
This paper delves down to a low level by taking a look at architectures for providing high availability of the underlying system resources necessary to support HA for those higher-level software servers when running on Linux for System z.

Dr. Rubin: Technology Economics of Mainframe vs. Distributed Server Intensity (231KB)
Our multi‐year results show that mainframe “heavy” organizations are more economically efficient in supporting business computational demands and have more upward scalability than distributed server “heavy” organizations.

199% ROI in three years
Forrester Consulting examines the total economic impact and potential ROI organizations may realize by deploying IBM System z.

IBM Enterprise Linux Server: Superior Virtualization Eliminates x86 Server Sprawl (802KB)
The Edison Group paper explains why IT executives, familiar and comfortable with the x86 platform, should think about virtualizing Linux servers on a System z server, such as an IBM Enterprise Linux Server.

Linux without limits: IT without compromise (1.19MB)
In today’s business environment, you need to manage for value, position for the future and effect change. The challenge for IT is clear: improve responsiveness, reduce costs and boost productivity.

Java Design and Coding for Virtualized Environments (133KB)
Often application developers ask: "How should my application be designed differently because it will be deployed in a virtual server?" This paper answers that question by giving guidance on Java™ programming techniques that minimize CPU and memory use – allowing to create more efficient applications for virtual deployments.

Linux and IBM System z Technology (215KB)
Deploying virtual machines rather than physical servers can optimize performance, improve reliability, and achieve superior economics. IBM z/VM virtualization technology unleashes the full virtualization capabilities of these powerful System z servers, allowing a business to get the most value.

z/VM Single System Image Cluster Live Guest Relocation with HiperSockets: Exploitation via Dynamic Routing (531KB)
This paper describes a solution that allows customers running Linux on z/VM to exploit the new z/VM Live Guest Relocation (LGR) functionality offered in the new z/VM 6.2 release while still making use of the IBM zEnterprise System HiperSockets technology as Linux guests are relocated around the z/VM Single System Image (SSI) cluster.

Sharing A WebSphere Application Server V8 Installation Among Many Linux for IBM System z Servers (436KB)
This document describes a process that enables you to share one installation of WebSphere Application Server V8 among many Linux guests running under z/VM.

IBM Lotus Domino and Trend Micro ScanMail on Linux for System z Now Best Practice Solution (975KB)
This analyst from Software Strategies describes the requirements for enterprise e-mail, collaboration and social business applications, and makes the case for deploying these workloads on Lotus Domino secured by Trend Micro ScanMail running on Linux for System z under z/VM and hosted on IBM zEnterprise servers.

TCA/TCO Benefits of Consolidating Databases and x86 Servers on IBM zEnterprise Servers with Linux (484KB)
This Wintergreen Research paper details the operational and financial benefits of consolidating databases and distributed x86 servers on IBM zEnterprise with Linux.

A foundation for database simplification consolidation and cost reduction (218KB)
This Bathwick Group whitepaper demonstrates that modern mainframe technology represents a viable scale-up alternative to the current vogue for racks filled with blades, looking in particular at the way organizations can benefit by consolidating Oracle databases onto IBM’s zEnterprise and Enterprise Linux.

High Availability Solution for WebSphere Message Queue in a Single Instance Queue Manager Configuration using HAE and a Shared DASD Device (257KB)
This paper describes the design and implementation of a high availability solution for a WebSphere Message Queue Single Instance Queue Manager configuration on a pair of virtual Linux servers running on an IBM System z10.

WebSphere Application Server in a z/VM DCSS (102KB)
This paper discusses the question: If it makes sense to run WebSphere Application Server in a z/VM DCSS for IBM System z Linux guests? The paper can help to decide whether running WebSphere in a DCSS is right for a specific environment.