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Considerations for Transitioning Highly Available Applications to System z

An IBM Redbooks publication


Published on 30 September 2011, updated 14 October 2011

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ISBN-10: 0738435856
ISBN-13: 9780738435855
IBM Form #: SG24-7824-00

Authors: Alex Louwe Kooijmans, Fernando Gieseler, Christopher Hastings, Stuart Kopel, David Kra, James Mitchell, Eduardo Costa de Oliveira, Michael Onoufriou, Dore Teichman and David Ward

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    You may have several triggers to investigate the feasibility of moving a workload or set of workloads to the IBM® System z® platform. These triggers could be concerns about operational cost, manageability, or delivering the agreed service levels, among others.

    Investigating the feasibility of a possible migration or transition to any other platform, including System z, requires a number of basic steps. These steps usually start with an understanding of the current workload and its pain points, and end with a business case to move the workload. It is important to find out how easy a migration is going to be and how much risk will be involved.

    In this IBM Redbooks® publication we offer thoughts on how to move through these steps. We also include a chapter with a System z technology summary to help you understand how a migrated workload may fit on the platform.

    Our focus in this book is on workloads that are mission-critical and require a high level of availability, including disaster recovery.

    Table of Contents

    Chapter 1. Management summary

    Chapter 2. Introduction to systems availability

    Chapter 3. Target architectures for availability

    Chapter 4. System z technology options

    Chapter 5. Operational models for high availability

    Chapter 6. Workload assessment

    Chapter 7. Transition approaches

    Chapter 8. System z capacity planning, sizing, and TCO


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