【IT168 虚拟化频道】在Windows Server 2008 R2版本中,Hyper-V功能得到了前所未有的增强，诸如实时迁移、故障转移集群等一应俱全。微软官方网站又放出了其独立版本Hyper-V Server 2008 R2正式版，日前亦可下载。（点击进入下载页面）
与之前版本相比，新版本增加了大量新特性，如Live Migration、Failover Cluster、新版服务器配置工具等等，同时物理系统处理器、内存支持从四路/24核心、32GB扩展到了八路/64核心、1TB，另外最多可运行的虚拟系统也从192个翻番到了384个。
系统需求：
- 操作系统：Hyper-V Server 2008
- 处理器技术：64位、Intel VT或AMD-V、硬件DEP、Intel XD bit或AMD Nx bit
- 处理器频率：最低1.4GHz，推荐2.0GHz或更快
- 内存容量：最少1GB，推荐2GB或更多
- 硬盘空间：最少8GB，推荐20GB或更多
支持虚拟操作系统(括号内为可分配物理处理器数量)：
- Windows Server 2008 R2 (1/2/4)
- Windows Server 2008 x64/x86 (1/2/4)
- Windows Server 2003 R2 x64/x86 (1/2)
- Windows Server 2003 x64/x86 (1/2)
- Windows Server 2000 (1)
- SUSE Linux Enterprise Server 11 x64/x86 (1)
- SUSE Linux Enterprise Server 10 SP2 x64/x86 (1)
- Red Hat Enterprise Linux 5.2/5.3 x64/x86 (1)
- Windows 7 x64/x86 (1/2/4)
- Windows Vista x64/x86 (1/2)
- Windows XP x64/x86
延伸阅读：
Hyper-V Server 2008、Hyper-V Server 2008 R2、Windows Server 2008 R2 对比
Capabilities | Hyper-V Server 2008 | Hyper-V Server 2008 R2 | Windows Server 2008 R2 |
x64-based processor architecture only | Yes | Yes | Yes |
Hypervisor-based | Yes | Yes | Yes |
Product type | Stand-alone product | Stand-alone product | Operating system |
Number of sockets (licensing) | Up to 4 | Up to 8 | Up to 8 (Enterprise) Up to 64 (Datacenter) |
Number of cores supported by the hypervisor | 24 (with Service Pack 2 or KB956710 (http://go.microsoft.com/fwlink/?LinkId=157983)) | 64 | 64 |
Memory | Up to 32 GB | Up to 1 TB | Up to 1 TB |
Virtual machine migration | None | Quick and live migration | Quick and live migration (Enterprise and Datacenter) |
Maximum number of cluster nodes | Not applicable | 16 | 16 |
Administrative UI | Command line, text-based configuration tool, and remote GUI management (with Remote Server Administration Tools or a Full installation of Windows Server 2008 R2) | Command line, text-based configuration tool, and remote GUI management (with Remote Server Administration Tools or a Full installation of Windows Server 2008 R2) | Command line, text-based configuration tool, remote management, and local GUI (Hyper-V Manager MMC) |
Management | Existing management tools | Existing management tools | Existing management tools |
Manageable by System Center Virtual Machine Manager | Yes (Virtual Machine Manager 2008 and Virtual Machine Manager 2008 R2) | Yes (Virtual Machine Manager 2008 R2) | Yes (Virtual Machine Manager 2008 R2) |
Virtualization rights for Windows Server guest virtual machines | 0 | 0 | 4 virtual machines (Enterprise) Unlimited virtual machines (Datacenter) |
Number of running virtual machine guests | As many as physical resources allow, up to 192 | As many as physical resources allow, up to 384 | As many as physical resources allow, up to 384 |
Maximum number of virtual processors | 8 times the number of logical processors | 8 times the number of logical processors | 8 times the number of logical processors |
