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Windows Server 2008 R2
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Windows Server 2012
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Processor/Memory Feature
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Logical processors on hardware |
64 |
320 |
Physical memory |
1TB |
4TB |
Virtual processors per host
|
512 |
2,048 |
Virtual processors per virtual machine |
4 |
64 |
Memory per virtual machine |
64GB |
1TB |
Active virtual machines |
384 |
1,024 |
Maximum cluster nodes |
16 |
64 |
Maximum cluster virtual machines |
1,000 |
8,000 |
Network Feature |
NIC Teaming |
Yes, through partners |
Yes, Windows NIC Teaming in box |
VLAN Tagging |
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MAC spoofing protection |
Yes, with R2 SP1 |
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ARP spoofing protection |
Yes, with R2 SP1 |
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SR-IOV networking |
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Network QoS
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Network metering |
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Network monitor modes
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IPsec task offload
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VM Trunk Mode |
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Storage Feature
|
Live storage migration |
No, quick storage migration through System Center Virtual Machine Manager
|
Yes, with no limits
(as many as the hardware will allow)
|
Virtual machines on file storage |
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Yes, Server Message Block 3.0 (SMB3) |
Guest Fibre Channel |
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Virtual disk format |
VHD up to 2 TB
|
VHD up to 2 TB
VHDX up to 64 TB |
Virtual machine guest clustering |
Yes, through iSCSI |
Yes, through iSCSI, Fibre Channel, or Fibre Channel over Ethernet (FCoE) |
Native 4 KB disk support |
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Live virtual hard disk merge
|
No, offline |
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Live new parent
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Secure offloaded data transfer
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Manageability Feature |
Hyper-V PowerShell |
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Network PowerShell |
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Storage PowerShell
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REST APIs
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SCONFIG
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Enable/Disable shell
|
No, server core at operating system setup
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VMConnect support for RemoteFX
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