| Clusterbau: Hochverfügbarkeit mit pacemaker, OpenAIS, heartbeat und LVS | ||||||||||||||||||||||
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By far the best Linux-HA book worldwide • • • • • (bewertet mit 4 von 5 Punkten) Alle meine Rezensionen ansehen Rezension bezieht sich auf: Clusterbau: Hochverfügbarkeit mit pacemaker, OpenAIS, heartbeat und LVS (Gebundene Ausgabe) Perhaps you have read the review I wrote back in June 2008 about the first edition. In May 2008 the author published "Clusterbau mit Linux-HA Version 2" ISBN: 3897217791. This new 2nd edition "Clusterbau: Hochverfügbarkeit mit pacemaker, OpenAIS, heartbeat und LVS" ISBN:3897219190 is basically an enhanced and extended version. It aditionally includes openais and pacemaker to reflect the development that took place in the meantime. As a reflection of that the book size has increased from 256 to 355 pages. The first chapter (Introduction) remains basically unchanged. The second chapter (Basics) is now trying to cover the history and development of heartbeat, the CRM and Openais (corosync). This is unfortunately one of the chapters that remain to be quirky. I had to re-read a couple of paragraphes and take memos on the "evolution of cluster software" chart to be able to follow the text. The installation chapter (third) did already cover Fedora, OpenSuse, Debian, SLES and RHEL in the 1st edition. Now the author even added instructions for CentOS, Ubuntu and openais (corosync). What was The fourth chapter in the 1st edition became now the fourth and fifth chapter "Creating resources" and "administration of the cluster" covering 96 pages !! Needless to say that that is more detail there than ever before. This now also covers the CRM's subshell and a note on Linbits new GUI. Chapter 6 "Planning, setup and operation" and Chapter 7 "Agents" are basically unchanged. Chapter 8 "Case scenarios" and Chapter 9 "LVS" now cover 62 pages. This allows coverage for DRBD, Firewall and LVS but also NFS server, Iscsi target and clients and (new) virtual machines. Chapter 10 "Observation and Security" has doubled in size (16p) but still feels a bit short. Summary: Overall I have to say I am impressed how much the book improved within 19 months. Author and editor team have effectively worked on some of the defects I "complained" about for the 1st edition. The quirky "neudeutsch" or "denglish" formulations are (almost) history. The front index is also slightly improved. As a result of that, the book reads more fluently, makes more sense. In short, it allows the reader to do just more with it. It becomes very obvious that the author and editor -team have worked hard to turn the book around. However, I think they still have some work left to do. The 2nd editions focus is still strong on the configuration and parameter descriptions. It now covers the case scenarios to start your cluster setup with more detailed. The XML snippets that are included and explained throughout the book give the reader now a stronger idea of how to configure the cluster and how to manage it. Part of this is down to improved documentation but also to a new quality of the management interfaces like the GUI's or the CRM subshell. For a third edition I would like the suggest the below improvements: - still more case scenarios (double) - workshop like tutorials, templates - more system charts and explanations This 2nd edition has made a huge leap forward since 1st edition. Its covering more background, better explained than ever before. I can foresee that should the publisher decide to translate this book into English this must become an instant hit. There is STILL absolute nothing comparable out there and it doesn't seem that other publishers have even started picking up this topic yet. Overall I would give it 5 stars for beginners, 4 stars for professionals. Contents quality: 5 stars Contents quantity: 4 stars Compactness: 5 Stars Pricing: 4 stars Eine Rezension von Ein Kunde vom 22. März 2010 | ||||||||||||||||||||||
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