Microsoft Hyper-V still a work in progress, analyst says

Windows Server 2008 R2 will help Microsoft narrow the feature gap with virtualisation products from VMware and Citrix Systems, but its new Hyper-V software still won't be "production-ready" for most enterprise applications, according to Burton Group.

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Windows Server 2008 R2 will help Microsoft narrow the feature gap with virtualisation products from VMware and Citrix Systems, but its new Hyper-V software still won't be "production-ready" for most enterprise applications, according to Burton Group.

The analyst group did a side by side comparison of VMware's vSphere 4, released in May, Citrix's XenServer 5.5, released in June, and Microsoft's Hyper-V Server 2008 R2, which is due to ship with its Windows Server OS upgrade in October.

Despite improvements, Hyper-V will still lack three of the 27 features that Burton Group considers requirements for most enterprise applications running in production, analyst Richard Jones said at VMworld.

Burton Group compiled a list of criteria for running enterprise applications in a virtual environment, including features related to high availability, live migration, memory management, security, networking, storage, licensing and power management.

Just a few months ago, VMware was the only company that met all of Burton Group's must-have requirements. It added XenServer to the list in July following its release of XenServer 5.5.

The analyst company admits that its list of features won't be required for all scenarios, but it sees them as a good general guide. It also noted that Microsoft has won some customers for its existing Hyper-V products, especially among smaller businesses and for departmental use.

The features it still lacks for the enterprise, according to Burton Group, are the ability to prioritise virtual machine restarts; support for a minimum of two virtual CPUs per guest operating system; and the lack of a fault-tolerant management server.

The first can be important because dependencies can exist between virtual machines, so companies may need to start them in a particular order, said Burton Group analyst Chris Wolf. The second translates to a lack of compute power: Microsoft supports more than two virtual CPUs with its newest OSes, but only two with Windows Server 2003, and one for all other operating systems, Wolf said.

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