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Linux on the Mainframe Paperback – June 2, 2003

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Editorial Reviews

From the Back Cover

  • Leverage Linux on the mainframe for a true business advantage
  • Covers zSeries and S/390 mainframes
  • Contains over 100 pages of reference material
  • Includes detailed examples and maximization techniques

The complete mainframe guide to leveraging the power of Linux

Linux on the Mainframe is the comprehensive guide to the fastest growing trend in IT. IBM's Linux experts present peerless instruction in the art of planning for and making the most of a Linux mainframe. This book's in-depth coverage includes virtualization, deployment, data management, debugging, security, systems management, application porting, and much more.

  • Sample companies that demonstrate the strengths and potential shortcomings of Linux on the mainframe
  • Complete business analysis, including Total Cost of Ownership, server consolidation techniques, and IT infrastructure simplification
  • Examples of deploying middleware and other tools
  • In-depth introductions to the latest trends, developments, and technologies related to Linux on the mainframe
  • Background information on mainframes and Linux for the lay reader
  • Key techniques for deploying Linux servers and building integrated server environments

For anyone involved in the planning, deploying, management, or administration of a mainframe, Linux on the Mainframe is a vital resource.

About the Author

JOHN EILERT led the team responsible for the Integrated Facility for Linux and retired from the IBM lab in Poughkeepsie, NY, after 30 years of experience with mainframes.

MARIA EISENHAENDLER,a technical writer at the IBM lab in Boeblingen, Germany, has been producing documentation for Linux on the mainframe since its inception.

DOROTHEA MATTHAEUS plans technical documentation at the IBM lab in Boeblingen, Germany, where she focuses on mainframe and Linux.

INGOLF SALMfocuses on IBM middleware design for Linux on the mainframe and Linux distributions at the IBM lab in Boeblingen, Germany. He has over 20 years of experience in IBM OS architecture and design.

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Product Details

  • Paperback: 464 pages
  • Publisher: Prentice Hall PTR (June 2, 2003)
  • Language: English
  • ISBN-10: 0131014153
  • ISBN-13: 978-0131014152
  • Product Dimensions: 7 x 1.1 x 9.3 inches
  • Shipping Weight: 1.9 pounds
  • Average Customer Review: 2.8 out of 5 stars  See all reviews (4 customer reviews)
  • Amazon Best Sellers Rank: #4,566,102 in Books (See Top 100 in Books)

Customer Reviews

Most Helpful Customer Reviews

3 of 3 people found the following review helpful By Richard Bejtlich on July 24, 2003
Format: Paperback
"Server consolidation" is the latest buzzword for downsized IT staffs. Many believe this means reducing the number of Windows servers running on Intel hardware. "Linux on the Mainframe," (LOTM) written by experts from IBM, offer an alternative: virtualization on the IBM zSeries and S/390 mainframes. Virtualization is the process of running dozens or hundreds of operating system "images," each of which thinks it is running on dedicated hardware. LOTM explains the improvements in reliability, availability, and serviceability from implementing this sort of system.

LOTM doesn't assume the reader has mainframe experience. (It doesn't assume that much Linux experience, either.) As a result, the book provides the background to understand differences between PC and mainframe architectures and designs. LOTM frequently refers to two sample deployments (StoreCompany and ISPCompany) to show how mainframe technology can be deployed vertically (to mainly support individual applications) or horizontally (to clone similar systems). LOTM gets its point across using numerous diagrams and tables, each clearly showing the concept behind running multiple Linux servers and network devices on a single mainframe hardware platform. LOTM also offers a glossary to help mainframe newbies learn that "storage" in mainframe lingo equals "memory" or "RAM" on the PC. Those that find the first two-thirds of the book too light on detail will enjoy the last one-third, where technicalities like the PSW and mainframe registers are explained.

LOTM is a book which explains IBM's image of computing as an "on-demand utility," like electricity.
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By Evan L. Carew on August 11, 2006
Format: Paperback
I recently placed this book on my Safari on-line book shelf. I have been anticipating a decent book on using linux on a mainframe for several years. Being a practitioner in the art of adding value to legacy (circa 1980) mainframe applications which IS departments are frightened of moving to more modern environments, it has struck me that there is a huge market for such a book. Unfortunately, this book doesn't address that market.

In the late `90s and early 2000s, I spent a few years in a Midwestern bank using older software on older mainframe hardware. A common enough combination I understand. This bank had many customers who wanted their data in easier to read formats and to be able to access their data on the web. Given the simple nature of the requests, I thought at the time that it would be easy to provide. There was only one fly in the ointment. The data in question was sequestered in a combination of outmoded IBM file formats and managed by batch based processes. Now a modern computer science graduate could be forgiven for assuming that you could simply log on the the mainframe and copy the relevant files, unfortunately, that isn't how it works on a mainframe. In fact, on a mainframe of this vintage, there isn't even a disk operating system a modern computer science grad would recognize. The silly solutions I came up with invariably involved FTPing files off the mainframe which the admins had created by performing a "data set extract". I was always unimpressed by the options for getting data off the mainframe or with integrating with its processes.

When this book came out I thought that someone had finally put together a description of several solutions to the sticky problems presented by such legacy hardware and software.
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Format: Paperback
"Linux on the Mainframe" says it is intended for business people and IT architects. Realistically, it serves neither audience well. The financial aspects of zLinux are barely touched on and the technical treatment is far too high-level to interest an "IT architect."
What the book does offer is a good deal of historical background and a broad overview of the way Linux is architected on the IBM mainframe. The book might be useful to computer science students or application programmers who may be generally familiar with Linux but have limited technical knowledge of mainframes.
The book is liberally sprinkled with diagrams and tables and has a very complete index. That makes it useful as a reference manual. The language is simple, but dull.
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2 of 3 people found the following review helpful By Roger Amazon Gordon on September 17, 2003
Format: Paperback
I just started reading this book and it is already clear to me that it is nothing but IBM marketing hype. All authors are hardcore IBM'ers and it shows in spades. Page after page of "oh how wonderful IBM is". Give me a break.
I intend to read some more but given the choice I would much rather have my $$ back and would like to buy an objective tome.
Save your money. I wish I had.
Roger Gordon
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