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SVR208 Gaining Higher Availability with Windows Server 2008 R2 Failover Clustering
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SVR208 Gaining Higher Availability with Windows Server 2008 R2 Failover Clustering


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Come and learn about all the new enhancements that are going to be delivered in Failover Clustering with Windows Server 2008 R2. This session looks at improvements since Windows Server 2008 including …

Come and learn about all the new enhancements that are going to be delivered in Failover Clustering with Windows Server 2008 R2. This session looks at improvements since Windows Server 2008 including an overview of Cluster Shared Volumes (CSV), live migration, enhanced validation, PowerShell support, new HA workloads, improvements to existing workloads, supportability enhancements, and other exciting features designed to help you achieve even HIGHER availability for your Failover Cluster.

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  • 1.
  • 2. Gaining Higher Availability with Windows Server 2008 R2 Failover Clustering
    Elden Christensen
    Senior Program Manager Lead
    Session Code: SVR208
  • 3. Agenda
    Overview of the new enhancements for the Failover Clustering feature in Windows Server 2008 R2
  • 4. Failover Clustering Vision for R2
  • 5. Mix And Match Hardware
    Flexible cluster hardware support policy
    You can use anyhardware configuration if
    Each component has a Windows Server 2008 R2 logo
    Servers, Storage, HBAs, MPIO, DSMs, etc…
    It passes Validate
    It’s that simple!
    Connect your Windows Server 2008 R2 logo’d hardware
    Pass every test in Validate
    It is now supported!
    If you make a change, just re-run Validate
  • 6. Dispelling Myths and Folklore
    Clustering does NOT require special or expensive hardware!!
  • 7. Enhanced Validation
    Cluster Validation Tool now includes additional “best practices” tests
    Included automatically when Validation Tool is run on an existing cluster
    Examples of best practices tests:
    Quorum configuration
    Status of cluster resources
    Network Name settings in a multi-site cluster
    Offers prescriptive guidance to achieve higher availability
    Also collects information about the configuration for supportability and documentation
  • 8. Enhanced Validation
  • 9. Migration – Our Upgrade Path
    Built-in Migration Wizard
    Upgrades not supported
    Supports most networking configurations
    IPv4, IPv6, IPv6 tunnel, DHCP IPs, Static IPs, different subnets
    Reuse storage or copy data and use new storage
    Migrate resource groups between clusters
    Enhanced Pre- and Post- migration reports
    2008 R2
    2008 R2
    2008 R2
    2008 R2
  • 10. Reduced Cluster Access
    “Read Only” Cluster Access via PowerShell
    Reduced privileges
    View the cluster
    No action
    Improve security
    Helps prevent accidental downtime from human error
    Useful for 1st tier support, cross-team collaboration, admins and investigation
  • 11. Failover Cluster Manager
    Better workload integration
    Increased scalability
    Supports thousands of resources
    16 nodes
    64 VMs / node
    Up to 960 total VM’s over 15 nodes with 1 passive node
  • 12. Performance Counters
    Troubleshoot Performance Problems
    Monitor & Optimize Cluster Performance
    API Calls
    Cluster DB
    More …
  • 13. Enhanced Logging
    Capture snap-in pop-up’s
    Even before cluster creation
    New debug logging channels
    Disabled by default
    Enabled for advanced troubleshooting
    Cluster.log converted to an ETW channel, now appears in Event Viewer as well
    Tip: Click on View  Show Analytic and Debug Logs
  • 14. Event Captures
    Save Failover Cluster Manager event query results as EVTX files for future analysis
  • 15. Eventing
  • 16. announcing
    Windows Server 2008 R2 Failover Clustering Management Pack for Operations Manager 2007
  • 17. Monitoring Cluster Events
    Fully featured Failover Cluster Management Packs for:
    System Center Operations Manager 2007
    Microsoft Operations Manager 2005
  • 18. DFS-Replication Cluster Support
    Multi-Master Replication Engine
    Any replication group member can form its own cluster
    All group members can be clustered
    Corporate Office
  • 19. Remote Desktop Connection Broker
    Remote Desktop Connection Broker configured for HA
    Keep clients connected in server farms
    Local VHD location
    TS / RDS Sessions
    Load Balancing
  • 20. Print Server HA Improvements
    Drivers and processors isolated from spooler process
    Single bad driver no longer takes down spooler
    Periodic recycling of sandboxes
    Configurable granularity for drivers
  • 21. Hyper-V Live Migration
    Move a running VM between hosts with no user-perceived downtime
    Client is not aware of the migration
    Maintain open TCP connections to the guest OS
    Clients stay connected
    Planned failover
    Failover Clustering still recovers VM from a disk in an unplanned failover
  • 22. The Dynamic Datacenter Vision
  • 23. Live Migration
    Memory content is copied to new server
    Live Migrate
    • May be additional incremental data copies until data on both nodes until essentially identical
    • 24. Entire VM memory copied
  • 25. Live Migration
    Client directed to new host
    • Session state is maintained
    • 26. No reconnections necessary
    • 27. Clients stay connected to “live” VM
    • 28. ARP issued to point routing devices to new node
    • 29. Old VM deleted after success
  • 30. Failover Clustering Today
    Failover Clustering has implemented a “shared nothing” storage model for the last decade
    Placing VHDs on same volume requires that VMs run on same host cluster node
    Only one node accesses a LUN at a time
  • 31. SAN Management Complexity
  • 32. Delivering Innovation
  • 33. Cluster Shared Volume Overview
    Concurrent access to a single file system
    Single Volume
  • 34. CSV Compatibility
    CSV is fully compatible with what you have deployed today with Win2008!
    No special hardware requirements
    No file type restrictions
    No directory structure or depth limitations
    No special agents or additional installations
    No proprietary file system
    Uses well established traditional NTFS
    Simple migrations to CSV
  • 35. CSV Benefits
    Simplify Storage Management
    Consolidate VMs on a CSV disk
    Individual VMs can failover on a shared LUN
    Remove drive letter dependency
    Improves live migration
    Increases Reliability
    Dynamic I/O Redirection
    Node Fault Tolerance
    Network Fault Tolerance
    Storage Access Redirection
    CSV gives your cluster Higher Availability
  • 36. I/O Connectivity Fault Tolerance
    I/O Redirected via network
    VM running on Node 2 is unaffected
    Coordination Node
    SAN Connectivity Failure
    VM’s can then be live migrated to another node with zero client downtime
  • 37. Node Fault Tolerance
    Node Failure
    VM running on Node 2 is unaffected
    Brief queuing of I/O while volume ownership is changed
    Volume relocates to a healthy node
  • 38. Network Fault Tolerance
    Metadata Updates Rerouted to redundant network
    VM running on Node 2 is unaffected
    Volume mounted on Node 1
    Network Path Connectivity Failure
    Fault-Tolerant TCP connections make a path failure seamless
  • 39. Cluster Shared Volumes
  • 40. Delivering Customer Value
    Empowers Hyper-V to be competitive in the virtualization marketplace
    Lower Total Cost of Ownership (TCO)
    Simplified cluster configurations
    Reduced SAN management
    High speed SAN file access
  • 41. PowerShell Support
    Command line, scripting language, and programmatic interface
    Improved manageability
    Run Validate
    Easily create clusters & HA roles
    Manage Hyper-V and CSV
    Generate dependency reports
    Server Core, Hyper-V Server, & RSAT Client
    Replaces cluster.exe as the cluster command line tool
  • 42. CSV & Live Migration Support
    All Cluster PowerShellcmdlet help available in-box with Get-Help cmdlet and online:
  • 43. Network Prioritization
    Plan your internal cluster networks for CSV use
    Configurable via PowerShell
    Give networks a “cost” (Metric)
    Lower value, higher priority (private)
    Higher value, lower priority (public)
  • 44. Auto Start
    Mark groups as lowerpriority
    Needs manual recovery
    Group property
    Faster recovery forregular groups
  • 45. Persistent Mode
    HA Service or Applicationwill return to same original owner which anAdmin last moved it to
    Better VM distribution
    Enabled by defaultfor VM groups
    Disabled by defaultfor other groups
  • 46. System Center Virtual Machine Manager
    Failover Cluster support with Hyper-V
    Queued Live Migration
    Intelligent Placement for VMs
    Performance & Resource Optimization (PRO)
    Quick Storage Migration (QSM)
  • 47. Failover Cluster changes in Windows Server 2008 Service Pack 2
  • 48. Big Picture on SP2 Cluster Changes
    Very few cluster fixes (only 11)
    If you have a deployed Win2008 cluster today, there is no critical urgency to upgrade to SP2 for cluster fixes
    However, there could be fixes in other components that may be compelling for you!
    Most cluster bug fixes in SP2 are hit during setup / deployment
    5 of the top 9 call generators are resolved by going to SP2
    Critical fix for OpsMgr management pack scalability
    Includes all fixes in:
    957311 - Recommended hotfixes for Windows Server 2008-based server clusters
  • 49. Top Cluster Issues Resolved in SP2
  • 50. Session Summary
    Windows Server 2008 R2 Failover Clustering is delivering substantial value
    Hyper-V deployments will want to upgrade immediately
    Expanded support for several new roles
    Cluster Shared Volumes
    Live Migration
    Improved integration with Cluster Management snap-in
    Improved Logging
    Enhanced Validation
    Performance Counters
  • 51. …and did we mention that Failover Clustering with Cluster Shared Volumes (CSV) and live migration is FREE on Hyper-V Server 2008 R2?
    More information:
  • 52. question & answer
  • 53. Required Slide
    TechEd 2009 is not producing
    a DVD. Please announce that
    attendees can access session
    recordings at TechEd Online.
    Sessions On-Demand & Community
    Microsoft Certification & Training Resources
    Resources for IT Professionals
    Resources for Developers
  • 54. Related Content
    Breakout Sessions
    SVR208 Gaining Higher Availability with Windows Server 2008 R2 Failover Clustering
    SVR319 Multi-Site Clustering with Windows Server 2008 R2
    DAT312 All You Needed to Know about Microsoft SQL Server 2008 Failover Clustering
    UNC307 Microsoft Exchange Server 2010 High Availability
    SVR211 The Challenges of Building and Managing a Scalable and Highly Available Windows Server 2008 R2 Virtualisation Solution
    SVR314 From Zero to Live Migration. How to Set Up a Live Migration
    Demo Sessions
    SVR01-DEMO Free Live Migration and High Availability with Microsoft Hyper-V Server 2008 R2
    Hands-on Labs
    UNC12-HOL Microsoft Exchange Server 2010 High Availability and Storage Scenarios
  • 55. Complete an evaluation on CommNet and enter to win an Xbox 360 Elite!
  • 56. Required Slide
    © 2009 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
    The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.