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What's the Difference Between Virtual Server and Windows Server Virtualization?

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System Center Virtual Machine Manager is the product I am working on. It is a management application for IT Pros to manage the explosion of virtual machines we see coming. It's currently in Beta, and you can sign up for it using these directions.

One of the "roadmap" questions IT Pros want to know is - where is virtualization going? The answer is Windows Server Virtualization, a feature of Longhorn Server x64editions.

What's the difference between Virtual Server 2005 R2 and Windows Server Virtualization?

 

Virtual Server 2005 R2

Windows Server virtualization

32-bit VMs?

Yes

Yes

64-bit VMs?

No

Yes

Multi-processor VMs?

No

Yes, up to 8 processor VMs

VM memory support?

3.6 GB per VM

More than 32 GB per VM

Hot add memory/processors?

No

Yes

Hot add storage/networking?

No

Yes

Can be managed by System Center Virtual Machine Manager?

Yes

Yes

Cluster support?

Yes

Yes

Scriptable/Extensible?

Yes, COM

Yes, WMI

Number of running VMs?

64

More than 64. As many as hardware will allow.

User interface

Web Interface

MMC 3.0 Interface

 

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