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Windows Server 2016 Hyper-V Cookbook

You're reading from   Windows Server 2016 Hyper-V Cookbook Save time and resources by getting to know the best practices and intelligence from industry experts

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Product type Paperback
Published in Jan 2017
Publisher Packt
ISBN-13 9781785884313
Length 524 pages
Edition 2nd Edition
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Authors (4):
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Patrick Lownds Patrick Lownds
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Patrick Lownds
Leandro Carvalho Leandro Carvalho
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Leandro Carvalho
Leandro Eduardo S Carvalho Leandro Eduardo S Carvalho
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Leandro Eduardo S Carvalho
Charbel Nemnom Charbel Nemnom
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Charbel Nemnom
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Toc

Table of Contents (13) Chapters Close

Preface 1. Installing and Managing Hyper-V in Full, Server Core, and Nano Server 2. Migrating and Upgrading Physical and Virtual Servers FREE CHAPTER 3. Managing Disk and Network Settings 4. Saving Time and Cost with Hyper-V Automation 5. Hyper-V Best Practices, Tips, and Tricks 6. Security and Delegation of Control 7. Configuring High Availability in Hyper-V 8. Disaster Recovery for Hyper-V 9. Azure Site Recovery and Azure Backup for Hyper-V 10. Monitoring, Tuning, and Troubleshooting Hyper-V A. Hyper-V Architecture and Components Index

Optimizing virtual machines' resources

Sometimes, it is hard to know how much memory and CPU a VM needs. Even when capacity planning is performed, the VM will never use the full memory and CPU specification, resulting in poor memory utilization and a loss of CPU resources.

Windows Server 2008 R2 SP1 introduced a new feature, called Dynamic Memory (DM), which allows the memory on the host server to be shared with the VMs using a method called Ballooning. Ballooning ensures that the VMs use only the memory that they need, and releases it back to the host if another VM requires more memory. This allows the memory in the parent partition to be reallocated automatically through the VMs, increasing or decreasing it based on the current workload.

Let's use an example of a VM that was installed and configured to use 16 GB of memory. That is the value that you got from the planning phase. The problem is that the VM will only use 16 GB when a huge workload is created. This stipulation represents...

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