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Windows Server 2012 : Deploying and configuring virtual machines (part 5) - Configuring virtual machine management

4/18/2014 1:12:38 AM
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3.3 Configuring other hardware settings

Some of the other virtual hardware settings you might want to configure include the following:

  • BIOS settings—for example, to modify the boot device order or turn on Num Lock

  • Memory settings—for example, if you wanted to change the amount of startup RAM or enable Dynamic Memory on the virtual machine

  • Processor settings—for example, to configure the number of virtual processors that the virtual machine uses, enable processor compatibility to allow live migrations to hosts having a different processor architecture, or configure the NUMA topology on a NUMA-capable host

These settings and others can be configured using either Hyper-V Manager or Windows PowerShell, and you can search the TechNet Library for more information about what they do and how to configure them.

3.4 Configuring virtual machine management

In addition to configuring the virtual hardware for a new virtual machine, you might also need to configure some of its management settings. As with virtual hardware, you can do this either by opening the virtual machine’s settings in Hyper-V Manager as shown in Figure 7 or by using Windows PowerShell.

Configuring management settings for a virtual machine.
Figure 7. Configuring management settings for a virtual machine.

The management settings you can configure for a virtual machine are as follows:

  • Name If you want to, you can change the name of the virtual machine as displayed in Hyper-V Manager and used with Windows PowerShell cmdlets. Changing the name of the virtual machine does not change the names of the virtual machine’s configuration files and virtual hard disk files, however.

  • Integration Services By default, all Integration Services are offered to the virtual machine. However, if you need to, you can disable some or all of these services—for example if the guest operating system doesn’t support some of them.

  • Snapshot files location By default, snapshot files are stored in subfolders of the default location where virtual machine configuration files are stored. If you frequently perform snapshots and are running out of storage space on the host storage device, you might want to change the snapshot files location to a different storage device.

  • Smart Paging This new feature of Windows Server 2012 Hyper-V allows a virtual machine that is being restarted to temporarily use disk resources on the host as a source for any additional memory needed to successfully restart the virtual machine. Then, once the virtual machine has been restarted and its memory requirements have lessened, Smart Paging releases the previously used disk resources because of the performance hit that such use can create. Smart Paging is used only when a virtual machine is restarted and there is no free physical memory on the host and no memory can be reclaimed from other running virtual machines. Smart Paging is not used if you simply try and start a virtual machine that’s in a stopped state, or if a virtual machine is failing over in a cluster.

  • Automatic start action This setting allows you to specify what the virtual machine should do when the host machine boots up. The options you can choose from are to automatically start the virtual machine if it was running when the VMM service on the host stopped (the default), to always start the virtual machine automatically, or to do nothing. You can also specify a startup delay in seconds to reduce resource content between different virtual machines starting up on the host.

  • Automatic stop action This setting allows you to specify what the virtual machine should do when the host machine shuts down. The options you can choose from are to save the virtual machine state (the default), turn off the virtual machine, or shut down the guest operating system.

You can also use Set-VM cmdlet of Windows PowerShell to configure the preceding virtual machine management settings. For example, to change the name of virtual machine SRV-A on HOST4 to SQL Workload, you would use this command:

Set-VM -Name SRV-A -NewVMName "SQL Workload" -ComputerName HOST4
 
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