Windows Server 2008 Windows Server 2008 R2 Windows Server 2012

HW Logical Processor Support

16 LPs 64 LPs 320 LPs

Physical Memory Support 1 TB 1 TB 4 TB

Cluster Scale 16 Nodes up to 1000 VMs 16 Nodes up to 1000 VMs 64 Nodes up to 4000 VMs

Virtual Machine Processor Support

Up to 4 VPs Up to 4 VPs Up to 64 VPs

VM Memory Up to 64 GB Up to 64 GB Up to 1 TB

Live Migration Yes, one at a time Yes, one at a time Yes, with no limits. As many as hardware will allow.

Live Storage Migration No. Quick Storage Migration via SCVMM

No. Quick Storage Migration via SCVMM

Yes, with no limits. As many as hardware will allow.

Servers in a Cluster 16 16 64

VP:LP Ratio 8:1 8:1 for Server 12:1 for Client (VDI)

No limits. As many as hardware will allow.

Disaster Recovery • Hyper-V Replica for Asynchronous Replication • CSV 2.0 Integration with Storage Arrays for Synchronous Replication

Application/Service Failover

• Non-Cluster Aware Apps: Hyper-V App Monitoring • VM Guest Cluster: iSCSI, Fiber Channel • VM Guest Teaming of SR-IOV NICs

I/O Redundancy • Network Load Balancing & Failover via Windows NIC Teaming • Storage Multi-Path IO (MPIO) • Multi-Channel SMB

Physical Node Redundancy

• Live Migration for Planned Downtime • Failover Cluster for Unplanned Downtime

Hardware Fault • Windows Hardware Error Architecture (WHEA)/RAS

Windows Server 2008 Windows Server 2008 R2 Windows Server 2012

Live Storage Migration No. Quick Storage Migration via SCVMM

No. Quick Storage Migration via SCVMM

Yes, with no limits. As many as HW will allow.

Storage Pools as low-cost alternative to SAN

No No Yes

VMs on File Storage No No Yes, SMB 3.0

Guest Fiber Channel No No Yes

Virtual Disk Format VHD up to 2 TB VHD up to 2 TB VHD up to 2 TB VHDX up to 64 TB

VM Guest Clustering Yes, via iSCSI Yes, via iSCSI Yes, via iSCSI or FC

Native 4k Disk Support No No Yes

Live VHD Merge No, offline. No, offline. Yes

Live New Parent No No Yes

Secure Offloaded Data Transfer (ODX)

No No Yes

0

50

100

150

200

AverageSystem

ODX

Creation of a 10 GB Fixed Disk

Time (seconds)

<1 Second!

~3 Minutes

Windows Server 2008 Windows Server 2008 R2 Windows Server 2012

NIC Teaming Yes, via partners Yes, via partners Windows NIC Teaming in box.

VLAN Tagging Yes Yes Yes

MAC Spoofing Protection No Yes, with R2 SP1 Yes

ARP Spoofing Protection No Yes, with R2 SP1 Yes

SR-IOV Networking No No Yes

Network QoS No No Yes

Network Metering No No Yes

Network Monitor Modes No No Yes

IPsec Task Offload No No Yes

VM Trunk Mode No No Yes

Windows Server 2008 Windows Server 2008 R2

Windows Server 2012

Hyper-V PowerShell No No Yes

Network PowerShell No No Yes

Storage PowerShell No No Yes

SCONFIG No Yes Yes

Multi-server management with Server Manager

No No Yes

Offline Virtual Disk servicing in Server Manager

No No Yes

Enable/Disable GUI Shell No (Server Core @ OS Setup)

No (Server Core @ OS Setup)

Yes, MinShell