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VMware vSphere 4.1 HA and DRS technical deepdive

VMware vSphere 4.1 HA and DRS technical deepdive [Kindle Edition]

Duncan Epping , Frank Denneman
4.7 out of 5 stars  See all reviews (6 customer reviews)

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Product Description

Product Description

VMware vSphere 4.1 HA and DRS Technical Deepdive zooms in on two 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 VMware HA and DRS cluster, but even more important explains the concepts and mechanisms behind HA and DRS which will enable you to make well educated decisions. This book will take you in to the trenches of HA and DRS and will give you the tools to understand and implement e.g. HA admission control policies, DRS resource pools 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. This book is also the ultimate guide to be prepared for any HA or DRS related questions and case studies 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
  • DPM

About the Author

Duncan Epping (VCDX 007) is a Consulting Architect working for VMware as part of the Cloud Practice. Duncan works primarily with Service Providers and large Enterprise customers. He is focused on designing Public Cloud Infrastructures and specializes in vCloud Director, VMware HA and vSphere in general. Duncan is the owner of, the leading Virtualization/VMware blog. Frank Denneman (VCDX 029) 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 specializes in Resource Management, DRS and storage. Frank is the owner of which has recently been voted number 6 worldwide on

Product details

  • Format: Kindle Edition
  • File Size: 2962 KB
  • Print Length: 224 pages
  • Page Numbers Source ISBN: 1456301446
  • Sold by: Amazon Media EU S.à r.l.
  • Language: English
  • ASIN: B004V49JGW
  • Text-to-Speech: Enabled
  • X-Ray:
  • Average Customer Review: 4.7 out of 5 stars  See all reviews (6 customer reviews)
  • Amazon Bestsellers Rank: #222,876 Paid in Kindle Store (See Top 100 Paid in Kindle Store)
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Customer Reviews

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Most Helpful Customer Reviews
1 of 1 people found the following review helpful
5.0 out of 5 stars So you think you know HA and DRS... 14 Mar 2011
well unless you've read this book then you probably dont know as much as you think. Duncan and Frank have done an excellant job diving into the inner workings of HA and DRS. The first 10 chapters refer to High Availability with the remaining 9 solely for DRS - That's a lot of chapters. The book is well written with excellant diagrams to visually represent the information. Chances are you take HA and DRS for granted as you simply enable it out of the box and it just works. If you are really interested in knowing how they really work to better prepare yourself then read this book.

I'm now off to hassel my boss to purchase another blade chassis so we can split our primary cluster nodes across two chassis :)

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3.0 out of 5 stars It Will Help Get You Started 24 Oct 2013
Format:Kindle Edition|Verified Purchase
Gives a good account to get one started and handy to have for reference but the best way to learn stuff will always be 'hands on'.
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5.0 out of 5 stars Excellent, perfect technical level. 21 Jun 2013
Format:Kindle Edition|Verified Purchase
An excellent level of technical detail is presented here. This book gives you exactly what you need to have a true understanding of how the features described really work.

More than this it also provides real world advice on what to change and what not to change.

The design considerations presented regarding distribution of multiple clusters across multiple blade chassis was also very insightful.

I would recommend this title to anybody interested in really understanding the details of HA and DRS.
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Popular Highlights

 (What's this?)
The AAM agent is the core of HA and actually stands for “Automated Availability Manager”. &quote;
Highlighted by 41 Kindle users
Primary nodes send heartbeats to all primary nodes and all secondary nodes. Secondary nodes send their heartbeats to all primary nodes, but not to secondaries. &quote;
Highlighted by 40 Kindle users
For network-based storage (iSCSI, NFS, FCoE) it is recommended (pre-vSphere 4.0 Update 2) to set the isolation response to "Shut Down" or “Power off”. It is also recommended to have a secondary Service Console (ESX) or Management Network (ESXi) running on the same vSwitch as the storage network to detect a storage outage and avoid false positives for isolation detection. &quote;
Highlighted by 37 Kindle users

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