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Critical VMware Mistakes You Should Avoid Paperback – September 1, 2011
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More About the Author
Larry has the ability to take very complicated topics and make them easy to understand while keeping an audience's attention and interest. His presentations are always informative and fun, and never boring.
Having served in many roles in this industry Larry Loucks is especially good at troubleshooting and assisting companies in finding simple solutions to complex problems. His experience almost always allows him to find ways to do things more efficiently, and he assists organizations in accomplishing its Information Technology goals while improving performance and cutting costs.
Specialties: Virtualization, Information Technology, writing, public speaking, disaster recovery, network design, and improving IT management while lowering costs.
Top Customer Reviews
The author also goes off on "large single array" SAN configurations. The problem he is discussing (insufficient IOP capabilities) is very real but his blaming it all on single large array configurations is a false conclusion. It's ironic that a "virtualization expert" doesn't see the benefits of storage virtualization, or the waste in traditional array configurations that he seems to prefere. The real issue is people not evaluating their IO needs and purchasing insufficient hardware to meet those needs and growth. More dedicated array configurations have their place in very high IO applications, but to paint "large single array" configurations as a problem is inaccurate and is an argument I usually here from old SAN administrators afraid of losing their jobs.
Overall, this book is mostly a condensed version of the recommendations that VMware makes in their various vSphere documentation manuals and best practice white papers. I could see this book definitely having value to an administrator new to virtualization, but that administrator also needs to do some additional research to get more up to date information.
This book is targeted towards individuals that are still very new to Virtualization and VMware in particular. I was under the impression that this book would tackle more advanced issues and means of detection such as SAN path-thrashing or virtual machine performance analysis. This book does not go into depth for these types of issues.
That being said, this book does go over a number of common mistakes individuals new to virtualization often make such as over-allocation of resources, confusing space with IOPS, expanding the subnet instead of creating more networks using VLANs/routers/ACLs, placing management in the same network as clients, etc. I did think that Mr. Loucks did a good explanation of CPU RDY time for this target audience. The actual whitepapers on this topic, for example, [...], are extremely deep, much deeper than most individuals in this target audience will need/want to get. Other than storage issues, this is the most common mistake I see by some of the clients I have worked with in my career.
I agree with another reviewer about this book feeling dated. It was not updated for 4.1 or higher for the chapter on memory as there is no mention of memory compression or swap to SSD. The copyright renewal of 2011 appears to have been just a renewal with potentially a few small revisions. Also, Mr. Loucks has a strong opinion on thin-provisioning and separating workloads on different spindles. While I agree to some extent most notably about people who buy their storage solely on capacity without any IOPS analysis - you should always review the best practices of the storage manufacturer.Read more ›
I enjoyed the pace and narrative of the text (ignoring the spelling and grammatical errors)
Despite this there are quite a number of negative points. For me personally I found very little in the way of anything new.
I would have liked more on performance metrics. Whilst %Ready is important why not expand the section with other metrics? Perhaps giving examples and explaining what they represent.
I realise there is not always a magic number that applies to everyone but at least an expansion on this would have been nice, the book certainly needed more content.
Having read other VMware books (700+ pages book costing less) much of what is in here is also in these books; this book is simply way over-priced and too short. Disappointing.
Most Recent Customer Reviews
A clearly articulated concise guide on common VMware misconfigurations to avoid, and guidance on how to properly configure a virtualized environment. Read morePublished 2 months ago by Donald Campbell
In the introduction to Critical VMware Mistakes You Should Avoid, co-author Larry Loucks notes that this book gives IT personnel the benefit of years of... Read more
its a nice book to understand how vmware product should be used. i read this before diving deep into ESXi. i found it very useful. its a quick read and very easy to understand.Published on May 2, 2013 by megaquake3
Well, this was a bit disappointing.
All material covered in this book, more or less, already exists in the course documentation for a regular VMware vSphere Install &... Read more
I read the book and I was quite disappointed: only few good hints, repeated, repeated, a lot of times just to ... reach little more than 100 pages. Read morePublished on September 18, 2012 by LASSI STEFANO
My office is at the "done with virtualizing the easy servers, now let's throw some real work at it" phase of virtualization and our systems team had a lot of questions about the... Read morePublished on August 9, 2012 by TEM
As a technical consultant at a well known large ERP Software organization, I visit countless clients with performance issues related to VMware. Read morePublished on May 1, 2012 by Sherman
In the interest of full disclosure, let me start by saying I have known Larry for more than 15 years. Read morePublished on April 26, 2012 by Dennis Nelson