Dell PowerEdge R610 Especificações descarregar pdf (Página 12)

Consolidating multiple SQL Server systems onto

Dell PowerEdge R610 Servers using Microsoft’s Hyper-V

• Linux support. As of this writing, Hyper-V supports SUSE

Linux Enterprise Server as a guest OS. You can find more

information on supported guest operating systems here:

http://www.microsoft.com/windowsserver2008/en/us/hyper

v-supported-guest-os.aspx.

• NOTE: Microsoft sells a tool, System Center Virtual Machine

Manager, that provides additional capabilities such as

physical to virtual (P2V) conversion, virtual to virtual (V2V)

conversion, and machine cloning. Use of the System Center

Virtual Machine Manager is outside the scope of this Guide.

Resource allocation in Hyper-V

Consolidation using Hyper-V allows your organization to save

money on hardware. Consolidation brings competition for physical

resources, such as CPU cycles, RAM, and NIC bandwidth. The

Hyper-V manager allows system administrators to allocate

resources as they see fit to reflect virtual machine workloads.

• Memory allocation. Hyper-V manager allows you to adjust

the memory you allocate to virtual machines. On our

PowerEdge with 48 GB, we could assign from 8 MB to

49,141 MB of memory to a virtual machine.

• CPU allocation. You can assign one or more virtual

processors to a virtual machine and then use more granular

resource controls to allocate and balance CPU resources

amongst multiple VMs. Figure 5 shows the Hyper-V

manager settings for the virtual CPUs. You can set the

number of virtual CPUs. Additionally, you can reserve a

percentage of the physical CPU by setting the VM reserve

percentage (minimum). You can also cap the amount of CPU

available to the VM by setting the VM limit percentage

(maximum). Lastly, you can use the relative weight value to

prioritize certain VMs over others.

• NOTE: You can assign a maximum of four virtual CPUs to a

VM, but not all guest OSs support four virtual CPUs.

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