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VMware vSphere 5 Clustering Technical Deepdive [Kindle Edition]

Duncan Epping , Frank Denneman
5.0 out of 5 stars  See all reviews (10 customer reviews)

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  • Length: 348 pages
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Book Description

VMware vSphere 5 Clustering Technical Deepdive zooms in on three key components of every VMware based infrastructure and is by no means a "how to" guide. It covers the basic steps needed to create a vSphere HA and vSphere DRS cluster and to implement vSphere Storage DRS. Even more important, it explains the concepts and mechanisms behind HA, DRS and Storage DRS which will enable you to make well educated decisions. This book will take you in to the trenches of HA, DRS and Storage DRS and will give you the tools to understand and implement e.g. HA admission control policies, DRS resource pools, Datastore Clusters and resource allocation settings. On top of that each section contains basic design principles that can be used for designing, implementing or improving VMware infrastructures and fundamental supporting features like (Storage) vMotion, Storage I/O Control and much more are described in detail for the very first time.

This book is also the ultimate guide to be prepared for any HA, DRS or Storage DRS related question or case study that might be presented during VMware VCDX, VCP and or VCAP exams.

Coverage includes:

HA node types
HA isolation detection and response
HA admission control
VM Monitoring
HA and DRS integration
DRS imbalance algorithm
Resource Pools
Impact of reservations and limits
CPU Resource Scheduling
Memory Scheduler
Datastore Clusters
Storage DRS algorithm
Influencing SDRS recommendations

Be prepared to dive deep!

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Product Description

About the Author

Duncan Epping is a Principal Architect working for VMware as part of Technical Marketing. Duncan specializes in vSphere HA, Storage DRS, Storage I/O Control and vSphere Architecture. Duncan was among the first VMware Certified Design Experts (VCDX 007). Duncan is the owner of, one of the leading VMware/virtualization blogs worldwide (Voted number 1 virtualization blog for the 4th consecutive time on and lead-author of the "vSphere Quick Start Guide" and co-author of "Foundation for Cloud Computing with VMware vSphere 4", “Cloud Computing with VMware vCloud Director” and “VMware vSphere 4.1 HA and DRS technical deepdive”. He can be followed on twitter at Frank Denneman is a Consulting Architect working for VMware as part of the Professional Services Organization. Frank works primarily with large Enterprise customers and Service Providers. He is focused on designing large vSphere Infrastructures and specializes in Resource Management, vSphere DRS and storage. Frank is among the first VMware Certified Design Experts (VCDX 029). Frank is the owner of which has recently been voted number 6 worldwide on and co-author of “VMware vSphere 4.1 HA and DRS technical deepdive. He can be followed on twitter at

Product details

  • Format: Kindle Edition
  • File Size: 7954 KB
  • Print Length: 348 pages
  • Publisher: Epping and Denneman (9 July 2011)
  • Sold by: Amazon Media EU S.à r.l.
  • Language: English
  • ASIN: B005C1SARM
  • Text-to-Speech: Enabled
  • X-Ray:
  • Word Wise: Not Enabled
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  • Average Customer Review: 5.0 out of 5 stars  See all reviews (10 customer reviews)
  • Amazon Bestsellers Rank: #274,832 Paid in Kindle Store (See Top 100 Paid in Kindle Store)
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Most Helpful Customer Reviews
2 of 2 people found the following review helpful
5.0 out of 5 stars So you think you know HA, DRS and also SDRS 10 Aug. 2011
Format:Kindle Edition
The book is available in Black and White, Colour and also for the Kindle. I opted for the full fat colour version which I ordered from the USA as it wasn't available in the UK. The full colour version doesn't disappoint due to the sheer amount of diagrams used to explain some of the concepts.

Chapters 1 through 9 go through vSphere High Availability (HA) and also go in depth over the changes in HA with vSphere 5. No longer do we have the concept of primary and secondary nodes and the issues that can arise in the event of losing all primary nodes. vSphere 5 HA was completely re-written and uses FDM (Fault Domain Manager) which has the concept of master and slave nodes within a cluster. The book also goes in depth about the new HA datastore heartbeat which can be used in the event of loss of the management network. HA is one of those features that people take for granted since it can pretty much be configured with a few clicks and "just works". These chapters go into the inner workings of HA and are a must for anyone designing vSphere environments.

Chapters 10 through 19 go in depth, and I mean really in depth, in the changes to Distributed Resource Scheduler DRS within vSphere 5. Once again, DRS is one of those technologies than can be enabled with a few clicks and pretty much forgotten about. These chapters explain every inch of DRS and how it goes about making the decisions that ultimately affect where a VM is migrated or a host is powered down to save power consumption. Some of the concepts can be quite difficult to follow but nearly all discussions are followed up with flow diagrams that further explain the theory. I found myself having a read some sections a couple of times to let the information sink in and then the flow diagrams reinforced it.
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2 of 2 people found the following review helpful
Format:Kindle Edition
I purchased this book to get up to speed with the latest changes with regards to clustering in vSphere 5. The book is very well written, clear and concise. One of the best aspects to the book are the supporting diagrams that really help you grasp the discussed concepts.

Duncan and Frank are well known bloggers in the VMware community and are very open for any further questions or discussions you may have whilst or after reading the book.

I highly recommend anyone who administors or install VMware vSphere on a daily basis reads this book to ensure they understand what's going on under the hood of what initially may seem some very simple technology.

Barry Coombs - VMware vExpert -
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2 of 2 people found the following review helpful
5.0 out of 5 stars No brainer for any VCP 11 Oct. 2011
I've read both this and the vSphere 4.1 original version. Whilst quite a lot of content is the same, it is still very much worth reading to understand how some components of HA have been completely re-written.

A must have for any VCP.
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5.0 out of 5 stars The best from the best 20 May 2012
By Gregg
Format:Kindle Edition|Verified Purchase
I purchased this book not once but twice as due to it coming in both paperback and kindle version I used my paperback for quick reference whilst doing my VCP5 upgrade preparations and am currently using the kindle version for my more in depth VCAP5 preparations. This book is written by two of the biggest names in virtualisation and they haven't disappointed by going from the basics for those just learning about HA and DRS,what has changed from vSphere 4 and even VI3 and in remarkable detail for those of us who have been using the technology for years and are looking for those advanced configurations and understanding to take our knowledge to that next level for customer deliveries and the VCAP and VCDX accreditations.

The cost of the book compared to the value makes it a steal as you will be referring back to it constantly and after having read it will have a new in depth understanding of it all which will enable you to make the best decisions for your company/customers
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This book will tell you all you need to know about HA, DRS and SDRS and how each of these features interact and with one another. Some of the topics and formulas in this book are difficult to grasp with just the written explanations so the authors have created many, many diagrams and this in my opinion is where they excel. The diagrams throughout the book are amazing but some are particularly outstanding, for example the HA timeline clocks on pages 54-55 and the reservations and limits diagram on page 190 are simply poster worthy.

An excellent book from two of the most respected bloggers in the VMware community. I can easily recommend this book to anyone who works with vSphere 5.

@jfrmilner [...]
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