| Features | Windows Server “8” Beta Hyper-V | VMware vSphere 5 | Notes |
| Network Virtualization |  |
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To deliver a hybrid cloud solution customers and hosters need a secure, multi-tenant solution. VMware doesn’t offer anything similar and depends on partners for a comparable solution |
| Hyper-V Extensible Switch | |
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Windows Server “8” Beta Hyper-V delivers an open, extensible switch, providing customers with flexibility and choice. We’ve already publicly demonstrated 6 plug-ins for the Hyper-V Extensible Switch. VMware provides a closed, replaceable switch |
| Share Nothing Live Migration | |
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SNO Live Migration provides the ability to Live Migrate Virtual Machines with nothing but a network connection. No Shared Storage, File Servers, SANs or Clusters are required. VMware has nothing that compares. |
| Hyper-V Replica | |
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Inbox replication included with Windows, application and storage agnostic. |
| Industry Leading Scale | |
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Windows Server “8” Beta Hyper-V offers the largest clusters (64 Nodes per cluster for Hyper-V vs. 32 for vSphere), the most VMs in a cluster (4000 VMs per cluster for Hyper-V vs. 3,000 for vSphere), and the largest Virtual Disks in the market (64 TB for Hyper-V vs. 2TB for vSphere) |
| In-guest Hardware GPU | |
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Windows Server “8” Beta Hyper-V is the only virtualization solution with in-guest hardware GPU and Live Migration |
| Encrypted Cluster Volume | |
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With Windows Server “8” Beta Hyper-V, you can create the largest and most secure clusters using Bit Locker encryption to protect your data at rest. VMware has nothing that compares. |
| Storage Price/Performance improvements | |
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Windows Server 8 Beta includes Storage Spaces and Pools, a storage virtualization technology that allows the virtualization of storage hardware and the enabling of just-in-time provisioning, mirroring and multi-tenancy. |
| SR-IOV Support | |
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SR-IOV gives VMs the ability to bypass the software-based Hyper-V Virtual Switch, and directly address the NIC. As a result, CPU overhead and latency is reduced, with a corresponding rise in throughput. This is all available, without sacrificing key Hyper-V features such as virtual machine Live Migration. VMware has nothing that compares. |
| Physical and Guest Clustering Support | |
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Windows Server “8” Beta Hyper-V leads cluster scalability for physical and guest clusters as compared with VMware |
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