Our new book, the vSphere HA and DRS technical deepdive is available on CreateSpace and Early this year Duncan. VMware vSphere HA and DRS Technical Deepdive zooms in on two key components of every VMware based infrastructure and is by no means a “how to” . pages. Dimensions: in. x in. x. vSphere 4. 1 HA and DRS Technical Deepdive zooms in on two key components of every VMware based.

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There is one additional item that you may be wondering about, though. The formula mentioned in the KB article followed by an example based on the screenshot fig For each VM check if a VMotion to each of the hosts which are less utilized than source host would result in a less imbalanced cluster and meets the Cost Benefit and Risk Analysis criteria.


HA and DRS Technical deepdive available

Technica, that the outcome is the same. Also remember that in order to split the nodes across sites, you need to use the Advanced workflow. Early this year Duncan approached me and asked me if I was interested in writing a book together on HA and DRS, without hesitation I accepted the honor.

Otherwise, even though it sounds simpler, you still have some work cut out for you. As said every 5 minutes DRS will calculate the sum of the resource entitlements of all virtual machines on a single host and divides that number by the capacity of the host: DRS does not take limits or reservations into account. This would result in a priority level of 5 for the migration recommendation if the cluster was imbalanced.


During QA we ordered several proof copies. Great news on the book. Do you know if it will be released on Amazon. So how does it detect an imbalanced Cluster? This means that every time you upgrade, replace certificates, or need to re-deploy the VCHA cluster you will have to tear down and manually clone the VMs, move them to where they need to run, resize the Witness, and re-setup all the DRS rules.

One of the most common questions we get and misconceptions I hear about is that in order to get all the features of VCHA you need to deploy using the Advanced workflow.

DRS Deepdive

It appears CreateSpace published books appear on amazon. The books are printed in the US and we received the books each time within a week.

Any particular considerations when the underlying storage is vSAN? Even with all that content, there are still some common questions srs misconceptions regarding this feature.

This book will take you in to the trenches an HA and DRS and will give you the tools to understand and implement e. I needed to read the article times before I actually understood what they were trying to explain so I will use an example based on the info shown in the screenshot fig1.


This is the description of the book that is up on CreateSpace:. The actual algorithm being used to determine this is described in technial KB article.

If however there are not enough resources available it will not power on this VM. Of course the obvious question was when the DRS Deepdive would be posted. Howeverall of the workloads and hosts will remain in the failed site without some other DR orchestration. This priority rating is based on the Current host load standard deviation. If so, can I reserve a copy?

vSphere High Availability (HA) Technical Deepdive – Yellow Bricks

Some books have turned up on amazon. What if you have multiple locations and you want to protect vCenter Server from a complete site failure?

This is the description of the book that is up on CreateSpace: Excellant news on the book. Protect vCenter Server within a site as you are much more likely to suffer a failure from hardware, network, or storage than a total site failure.

Duncan works primarily with Service Providers and large Enterprise customers. For each host h that is not Source Host: