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vSphere Virtual Machine Management

By : Rebecca Fitzhugh
Book Image

vSphere Virtual Machine Management

By: Rebecca Fitzhugh

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vSphere Virtual Machine Management
Rebecca Fitzhugh
Mar, 2014 | 326 pages
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Table of Contents (17 chapters)
vSphere Virtual Machine Management
vSphere Virtual Machine Management
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Virtual Machine Concepts
Virtual Machine Concepts
vSphere virtual machines
Virtual machine components
Uses of virtual machines
The primary virtual machine resources
Virtual machine files
VMware Tools
Summary
2
Creating a Virtual Machine Using the Wizard
Creating a Virtual Machine Using the Wizard
vSphere Client versus vSphere Web Client
Creating a VM using the typical configuration wizard
Creating a VM using the custom configuration wizard
Creating a VM using vSphere Web Client
Summary
3
Other Ways to Provision a Virtual Machine
Other Ways to Provision a Virtual Machine
Configuring virtual machine customizations
Creating a virtual machine from a template
Creating a virtual machine by cloning
Creating a virtual machine from an OVF file
Creating a virtual machine using VMware vCenter Converter
Summary
4
Advanced Virtual Machine Settings
Advanced Virtual Machine Settings
Introducing the virtual machine monitor
Enabling CPU hot plug / memory hot add
The CPUID mask
The CPU affinity setting
Setting the .vswp location
Viewing other advanced options
Installing VMware Tools
Summary
5
Managing Multitiered Applications with vApps
Managing Multitiered Applications with vApps
What is a vApp?
Creating a vApp
vApp options
Exporting a vApp
Cloning a vApp
Summary
6
Virtual Machine Performance and Resource Allocation
Virtual Machine Performance and Resource Allocation
Resource performance concepts
Understanding resource controls
Resource pools
Network I/O Control
Storage I/O Control
Disk alignment
Performance tuning
Summary
7
Monitoring Virtual Machines
Monitoring Virtual Machines
Performance charts
Using esxtop
Using alarms
Other places to find information
Summary
8
Migrating Virtual Machines
Migrating Virtual Machines
vMotion
Migration using Storage vMotion
Cross-host Storage vMotion
Summary
9
Balancing Resource Utilization and Availability
Balancing Resource Utilization and Availability
Clusters
Distributed Resource Scheduler (DRS)
High Availability
Storage Distributed Resource Scheduler (SDRS)
Summary
10
Virtual Machine Design
Virtual Machine Design
Comparing provisioning methods
Virtual hardware and resource configuration
Other considerations
Summary
Index
Index

vMotion

A virtual machine can be migrated to a different ESXi host while it is powered on (vMotion), powered off (cold migration), or suspended. vSphere vMotion migrates virtual machines from one ESXi host to another without any kind of downtime or disruption. Using this feature, the entire state of a virtual machine is moved from one ESXi host to another while the actual virtual machine files remain in the same datastore.

The state information includes the current memory content and the information that defines a virtual machine. This includes information such as BIOS, devices, CPU, and MAC addresses for Ethernet cards.

vSphere DRS leverages vMotion technology to migrate the virtual machine workload across a cluster. This idea is further explored in Chapter 9, Balancing Resource Utilization and Availability.

So how does vMotion work? A vMotion migration consists of the following actions:

  • The memory state of a virtual machine is copied over the vMotion network from one host to another. Our users...

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