Flexible Migrations Empower Hyper-V Expand Cluster Validation Continue Simplification Mission Improved Manageability

Flexible Support

http://www.microsoft.com/whdc/winlogo/default.mspx

http://technet.microsoft.com/en-us/library/cc732035.aspx

KB 943984

http://go.microsoft.com/fwlink/?LinkID=119949

Tip:

http://go.microsoft.com/fwlink/?LinkID=142796

Foundation for your Private Cloud

no user-perceived downtime

Planned Downtime Unplanned Downtime

• Live Migration delivers zero downtime • Failover Clustering recovers VM from an unplanned failure

Live Migrate Memory content is copied to new server SAN

VHD

SAN

VHD

Client directed to new host

Only one node accesses a LUN at a time SAN SAN

Manageability

• MPIO and Masking of large numbers of LUN’s

Flexibility

• LUN is the smallest unit of failover

Capacity

• Poor SAN space utilization

Scalability

• Complexity with drive letters

Single Volume SAN Disk5 VHD VHD VHD Concurrent access to a single file system

Coordination Node I/O Redirected via network VM running on Node 2 is unaffected SAN VHD SAN Connectivity Failure VM’s can then be live migrated to another node with zero client downtime

Node Failure Volume relocates to a healthy node SAN VHD VM running on Node 2 is unaffected Brief queuing of I/O while volume ownership is changed

Metadata Updates Rerouted to redundant network Volume mounted on Node 1 VM running on Node 2 is unaffected SAN Network Path Connectivity Failure Fault-Tolerant TCP connections make a path failure seamless VHD

Auto Start Persistent Mode

Action

Make VMs Highly-Available Quick Migration Live Migration Add a Disk to CSV Move CSV Disk Repair CSV Disk Update VM Configuration

CMDlet

Add-ClusterVirtualMachineRole Move-ClusterGroup Move-ClusterVirtualMachineRole Add-ClusterSharedVolume Move-ClusterSharedVolume Repair-ClusterSharedVolume Update-ClusterVirtualMachineConfiguration All Cluster PowerShell cmdlet help available in-box with Get-Help cmdlet and online: http://technet.microsoft.com/en-us/library/ee461009.aspx

Tip:

Corporate Office Branch Branch

Availability Improvements

Cluster Changes • 24 fixes / hotfixes • 1 feature with enhanced asymmetric storage detection Networking fixes (

that help clusters

) • Many core networking fixes that improve network communication • 979612 - A hotfix is available that improves TCP loopback latency and UDP latency in Windows Server 2008, Windows Server 2008 R2, Windows Vista, and Windows 7 • 981889 - A Windows Filtering Platform (WFP) driver hotfix rollup package is available for Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2

Critical: Apply hotfix KB 2531907 after upgrading to SP1

http://support.microsoft.com/kb/980054 Failover Clustering feature install fails on Core

• 978309 - IPv6 transition technologies, such as ISATAP, 6to4 and Teredo do not work on a computer that is running Windows Server 2008 R2 Server Core

Roll-up hotfix for Print Clusters

• 976571 - Stability update for Windows Server 2008 R2 Failover Print Clusters

KB

2294255

Description

Vulnerability in Windows shared cluster disks could allow tampering 979782 978562 An update rollup package for the Validate a Configuration Wizard of the Failover Clustering feature is available for Windows Server 2008 R2 The "Validate Multiple Arbitration" test on a Windows Server 2008 R2-based failover cluster may incorrectly fail 974930 2213729 An application or service that queries information about a failover cluster by using the WMI provider may experience low performance or a time-out exception The ClusterRegEnumValue function returns an incorrect return code in a Windows Server 2008 R2 failover cluster 978527 The Resource Hosting Subsystem (Rhs.exe) process stops unexpectedly when you start a cluster resource in Windows Server 2008 R2 2277439 The Cluster service stops responding if you run backup applications in parallel in Windows Server 2008 R2 979710 2353832 978001 981983 977432 You cannot log off the session for an iSCSI disk or take a disk offline from the Cluster Shared Volumes list in Windows Server 2008 R2 if the disk is an iSCSI disk or a fibre channel disk Authentication requests between nodes in the same failover cluster may be unable to use the Kerberos protocol if the Negotiate SSP is specified in Windows Server 2008 R2 Cluster resources do not automatically fail over to another node when you disconnect the private and public network interfaces in a Windows Server 2008 failover cluster or in a Windows Server 2008 R2 failover cluster Cluster resources do not fail over automatically to other nodes when nodes cannot connect to the rest of a network in a Windows Server 2008 R2 failover cluster Double-byte character set (DBCS) characters are not written to the cluster log on a computer that is running a localized version of Windows Server 2008 975665 The time stamps in the Cluster log are less accurate compared to the system time that is used for events on a failover cluster node that is running a non English version of Windows Server 2008

Asymmetric Storage Node Vote Weight

No Vote

Cluster Shared Volumes Live Migration DFS-Replication Remote Desktop Connection Broker PowerShell Read-only APIs Migration Improved Integration Improved Logging Enhanced Validation Performance Counters

– – – – – – – – – WSV373-INT – – – –

http://blogs.msdn.com/clustering/ http://forums.technet.microsoft.com/en-US/winserverClustering/threads / http://blogs.msdn.com/clustering/archive/2009/08/21/9878286.aspx

http://www.microsoft.com/windowsserver2008/en/us/clustering-home.aspx

http://www.microsoft.com/windowsserver2008/en/us/clustering-resources.aspx

http://technet.microsoft.com/en-us/library/dd443539.aspx

http://northamerica.msteched.com

www.microsoft.com/teched http://microsoft.com/technet www.microsoft.com/learning http://microsoft.com/msdn