VMware vSphere 6.5 Host Deep Dive – Free ebook

VMware
The VMware vSphere 6.5 Host Resources Deep Dive is a guide to building consistent high-performing ESXi hosts. A book that people can’t put down. Written for administrators, architects, consultants, aspiring VCDX-es and people eager to learn more about the elements that control the behaviour of CPU, memory, storage and network resources. This book shows that we can fundamentally and materially improve the systems we’re building. We can make the currently running ones consistently faster by deeply understanding and optimising our systems. The reality is that specifics of the infrastructure matter. Details matter. Especially for distributed platforms which abstract resource layers, such as NSX and vSAN. Knowing your systems inside and out is the only way to be sure you’ve properly handled those details. It’s about having a passion for these…
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VM Resource and Availability Service

VMware
The engineers at VMware have released a cool tool that enables you to perform a what-if analysis for host failures on your infrastructure. You can simulate failure of one or more hosts from a cluster (in vSphere) and identify how many: VMs would be safely restarted on different hosts VMs would fail to be restarted on different hosts VMs would experience performance degradation after restarted on a different host With this information, you can better plan the placement and configuration of your infrastructure to reduce downtime of your VMs/Services in case of host failures. To Get started :- Open hasimulator.vmware.com to access the web service. Click on "Simulate Now" to accept the EULA terms, upload the DRM dump file and start the simulation process. Click on the help icon (at the…
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vCenter and Memory metrics

VMware
I have received an email today asking if I could explain the memory details that are in vCenter under the summary tab on each VM.  Rather than reinvent the wheel I have taken a blog post from Duncan Epping over at www.yellow-bricks.com which I find explains it very well. It appears that there is a lot of confusion around this topic and that probably comes from the fact that some of the Performance Metrics are named similarly but don’t always refer to the same. Let’s start with “General”: (more…)
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