The Microsoft Hyper-V Server 2008 R2 Beta has been posted on the download center along with an overview document and a setup and configuration guide.  Please note that all features, support, configuration etc… is subject to change as this is a beta

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Download Links

Microsoft Hyper-V Server 2008 R2 Beta Download
Microsoft Hyper-V Server 2008 R2 Beta Overview
Microsoft Hyper-V Server 2008 R2 Beta Setup and Configuration Guide

New Features In R2

Failover Clustering: The initial release of Microsoft Hyper-V Server 2008 did not include support for failover clustering.  However, with Microsoft Hyper-V Server 2008 R2 Beta, host clustering technology is included to enable support for unplanned downtime.

Live migration: Microsoft Hyper-V Server 2008 R2 includes support for live migration. Live migration enables customers to move running applications between servers without service interruptions.

Processor and memory support: Microsoft Hyper-V Server 2008 R2 Beta now supports up to 8-socket physical systems and provides support for up to 32-cores.  In addition, Microsoft Hyper-V Server 2008 R2 Beta supports up to 1TB of RAM on a physical system.

Updated Hyper-V Configuration Utility: The Hyper-V Configuration utility is designed to simplify the most common initial configuration tasks.  It helps you configure the initial configuration settings without having to type long command-line strings.  New configuration options have been added for R2 Beta including:
-Remote Management Configuration
-Failover Clustering Configuration
-Additional options for Updates

Virtualization Platform Comparison

The following is an overview comparison of the feature and support set for:
-Microsoft Hyper-V Server 2008
-Microsoft Hyper-V Server 2008 R2 Beta
-Windows Server 2008 R2 Beta (Enterprise and Datacenter Editions)

Capabilities

Microsoft Hyper-V Server 2008

Microsoft Hyper-V Server 2008 R2

Windows Server 2008 R2 EE, DC

Processor Architecture x64 only

Yes

Yes

Yes

Hypervisor-based

Yes

Yes

Yes

Product Type

Standalone product

Standalone product

Operating System

Number of Sockets (Licensing)

Up to 4

Up to 8

Up to 8 = EE | Up to 64 = DC

Number of cores supported by the hypervisor

24 (with QFE)

32

32

Memory

Up to 32 GB

Up to 1 TB

Up to 1TB

VM Migration

None

Quick and live migration

Quick and live  migration (EE & DC)

Administrative UI

Command line, text based configuration utility  and remote GUI management

Command line, text based configuration utility  and remote GUI management

Command line, remote management, and local GUI  (Hyper-V Manager MMC)

Management Existing management tools
Virtualization Rights for Windows Server guests 0 0

EE = 4 VM

DC Edition = unlimited VM per proc

Number of running VM Guests Up to 192, or as many as physical resources allow Up to 256, or as many as physical resources allow Up to 256, or as many as physical resources allow
Storage Direct Attach Storage (DAS): SATA, eSATA, PATA, SAS, SCSI, Firewire, Storage Area Networks (SANs): iSCSI, Fiber Channel, SAS
Planned Guest OS support Windows Server 2008 R2, Windows Server 2008, Windows Server 2003 SP2, Windows 2000 Server, Novell SUSE Linux Enterprise Server 10, Windows 7, Windows Vista SP1 & Windows XP SP3/SP2

Taylor Brown
Hyper-V Integration Test Lead
http://blogs.msdn.com/taylorb

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