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Microsoft Exchange Server 2010

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Microsoft Exchange Server 2010

  1. 1. Exchange 2010 High Availability<br />Harold Wong<br />IT Pro Evangelist<br />blogs.technet.com/haroldwong<br />
  2. 2. Agenda<br />Exchange 2010 High Availability Fundamentals<br />End-to-End Availability Improvements<br />High Availability Fundamentals<br />High Availability Design Examples<br />Storage Improvements<br />
  3. 3. E-Mail Trends<br /><ul><li>The average corporate user can expect to send and receive about 156 messages a day, and this number is expected to grow to about 233 messages a day by 2012. An increase of 33% over the four-year period. (Radicati, 2008)</li></ul>Messages Sent/Received Per User/Day<br />“If e-mail stops, business stops”<br /><ul><li>Business users report that they currently spend 19% of their work day, or close to 2 hours/day on email. (Radicati, 2007)</li></ul>“The company runs on e-mail”<br />
  4. 4. High Availability ImprovementsKey benefits<br /><ul><li>Improved failover granularity
  5. 5. Simplified administration
  6. 6. Incremental deployment
  7. 7. Unification of CCR + SCR
  8. 8. Easy stretching across sites
  9. 9. Up to 16 replicated copies
  10. 10. Easier & cheaper to deploy
  11. 11. Easier & cheaper to manage
  12. 12. Better SLAs</li></ul>Improved mailbox uptime<br />More storage flexibility<br /><ul><li>Reduced storage costs
  13. 13. Larger mailboxes
  14. 14. Further IO reductions
  15. 15. RAID-less / JBOD support</li></ul>Better end-to-end availability<br /><ul><li>Easier & cheaper to manage
  16. 16. Better SLAs
  17. 17. Further IO reductions
  18. 18. RAID-less / JBOD support</li></li></ul><li>Unified Platform for High Availability and Disaster Recovery<br />San Jose<br />Dallas<br />Mailbox Server<br />Mailbox Server<br />Mailbox Server<br />Recover quickly from disk and database failures<br />Replicate databases to remote datacenter<br />DB1<br />DB1<br />DB1<br />DB2<br />DB2<br />DB2<br />DB3<br />DB3<br />DB3<br />DB4<br />DB4<br />DB4<br />DB5<br />DB5<br />DB5<br />Evolution of continuous replication technology<br />Combines the capabilities of CCR and SCR into one platform<br />Easier than traditional clustering to deploy and manage<br />Allows each database to have up to 16 replicated copies<br />Provides full redundancy of Exchange roles on two servers<br />
  19. 19. Exchange 2010 High Availability Overview <br />AD site: Dallas <br />Client Access Server<br />All clients connect via CAS servers<br />DB1<br />Client<br />DB3<br />Mailbox Server 6<br />DB5<br />AD site: San Jose<br />Client Access Server<br />Easy to stretch across sites<br />Failover managed within Exchange<br />Mailbox Server 1<br />Mailbox Server 2<br />Mailbox Server 3<br />Mailbox Server 4<br />Mailbox Server 5<br />Database Availability Group<br />DB1<br />DB1<br />DB1<br />DB4<br />DB2<br />DB5<br />DB3<br />DB2<br />DB5<br />DB3<br />DB4<br />DB1<br />Database centric failover<br />DB1<br />DB3<br />DB2<br />DB5<br />DB4<br />
  20. 20. Database Availability Group (DAG)<br />Mailbox Servers<br />Mailbox Database<br />Database Copy<br />Active Manager<br />RPC Client Access Service (Active Manager Client)<br />High Availability Fundamentals<br />RPC Client Access Service<br />Active Manager<br />Active Manager<br />Active Manager<br />DB1<br />DB1<br />DB1<br />DB2<br />DB2<br />DB2<br />Database Availability Group<br />DB3<br />DB3<br />DB3<br />
  21. 21. Exchange 2010 HA FundamentalsDatabase Availability Group (DAG)<br />Group of up to 16 servers<br />Wraps a Windows® Failover Cluster<br />Defines the boundary of replication and failover/switchover<br />Mailbox Servers ….<br />Host the active and passive copies of multiple mailbox databases<br />Support up to 100 databases per server<br />
  22. 22. Mailbox Database<br />Unit of Failover/Switchover<br />30 second Database Failover/Switchover<br />Database names are unique across an forest<br />Mailbox Database Copy<br />A database has one active copy in a DAG <br />A server may not host more than one copy of a given database<br />Replication of copies using Log Shipping<br />System tracks health of each copy<br />Exchange 2010 HA FundamentalsMailbox Databases and Copies<br />
  23. 23. High Availability’s Brain<br />Manages which database copies should be active and passive<br />Source of definitive information on where a database is active and mounted<br />Active Directory is primary source for configuration information<br />Active Manager is primary source for changeable state information such as active and mounted<br />A process that runs on every server in DAG<br />Exchange 2010 HA FundamentalsActive Manager<br />Active <br />Manager<br />
  24. 24. Incremental DeploymentReduces cost and complexity of HA deployments<br />Easy to add high availability to existing deployment<br />High availability configuration is post-setup<br />HA Mailbox servers can host other server roles<br />Datacenter 1<br />Datacenter 2<br />Database Availability Group<br />Mailbox Server 3<br />Mailbox Server 1<br />Mailbox Server 2<br />DB1<br />DB1<br />DB1<br />DB2<br />DB2<br />DB2<br />DB3<br />DB3<br />DB3<br />
  25. 25. Simplified ManagementReduces cost and complexity of management<br />HA Administration within Exchange<br />Recovery uses the same simple operation for a wide range of failures<br />Simplified activation of Exchange services in a standby datacenter<br />
  26. 26. High Availability Management<br />demo <br />
  27. 27. Use a VSS backup solution<br />Backup from any copy of the database/logs<br />Always choose passive (or active) copy<br />Backup an entire server <br />Designate a dedicated backup server for a given database <br />Restore from any of these backups:<br />Database Availability Group<br />Mailbox Server 3<br />Mailbox Server 1<br />Mailbox Server 2<br />DB1<br />DB1<br />DB1<br />VSS requestor<br />DB2<br />DB2<br />DB2<br />DB3<br />DB3<br />DB3<br />Exchange Server 2010 Backups<br />
  28. 28. Storage ImprovementsPerformance enhancements enable new options<br />Exchange 2010 Storage Enhancements<br />70% reduction in IOPS<br />Smoother IO patterns<br />Resilience against corruption<br />Choose from a wide range of storage technologies without sacrificing system availability:<br />Storage Area Network (SAN)<br />Direct Attached w/ SAS Disks<br />JBOD SATA (RAID-less)<br />Direct Attached w/ SAS Disks<br />
  29. 29. Lowering Exchange 2010 Storage Costs<br />Optimized for DAS storage<br />Use larger, slower, cheaper disks<br />Support larger mailboxes at lower cost<br />HA provides resilience from disk failures<br />HA Solution remains unchanged regardless of data volume size<br />JBOD/RAID-less storage now an option<br />Requires 3+ DB Copies<br />
  30. 30. Exchange 2010 Cost Savings<br /><ul><li>Storage flexibility
  31. 31. Simplified management
  32. 32. Simplified site resilience
  33. 33. All server roles on one server (Small deployments)</li></ul>3000 Mailboxes<br />2 Node Cluster<br />Double Server/Disk Failure Resiliency<br />24,000 Mailboxes<br />6 Node DAG <br />3 copies (JBOD)<br />4 x 2 Node CCR <br />2 copies (RAID)<br />Storage Cost savings examples <br />
  34. 34. Automatic protection against loss of queued e-mails due to hardware failure<br />Simplifies hub and edge transport server upgrades and maintenance<br />Improved Transport Resiliency<br />X<br />Mailbox <br />Server <br />EdgeTransport<br />Servers keep “shadow copies” of items until they are delivered to the next hop<br />Edge Transport<br />HubTransport <br />
  35. 35. Online Move MailboxLimit user disruption during mailbox moves and maintenance<br />Users remain online while their mailboxes are moved between servers<br />Sending messages<br />Receiving messages<br />Accessing entire mailbox<br />Administrators can perform migration and maintenance during regular hours<br />Also can be used to migrate users from on-premise server to Exchange Online<br />E-Mail Client<br />Client Access Server<br />Exchange 2010 & Exchange 2007 SP2 Online<br />Exchange 2003 Offline <br />Mailbox Server 1<br />Mailbox Server 2<br />
  36. 36. Hardware Load Balancer<br />Mailbox servers in a DAG can host other Exchange server roles<br />CAS/HUB/MAILBOX 2<br />CAS/HUB/MAILBOX 1<br />DB1<br />DB1<br />2 server configurations, should always use RAID<br />DB2<br />DB2<br />DB2<br />DB3<br />DB3<br />High Availability Design ExampleBranch office or smaller deployment<br />
  37. 37. High Availability for Other Server Roles<br /><ul><li>Hardware load balancer (recommended) or Windows Network Load Balancing (NLB) </li></ul>Client Access<br /><ul><li>No special configuration required (load balancing and failover is automatic)</li></ul>Hub Transport<br />Edge Transport<br /><ul><li>Use DNS round robin, multiple MX records
  38. 38. Configure IP gateway to point to more than one UM server</li></ul>Unified Messaging<br />
  39. 39. High Availability Management (Closure)<br />demo <br />
  40. 40. Exchange 2010 High Availability …..<br />Easier & cheaper to deploy<br />Simplified administration <br />Granular failover & recovery<br />Better end-to-end availability<br />One technology for both high availability and site resilience<br />Summary<br />
  41. 41. Learn More About Exchange 2010<br />Community Resources<br />Technical Resources<br />Get Hands on Training<br /><ul><li>Exchange Team Blog
  42. 42. Exchange Forums
  43. 43. The New Efficiency Virtual Launch Experience
  44. 44. TechNet Exchange Website
  45. 45. Exchange Webcasts and Podcasts </li></ul>www.thenewefficiency.com<br />http://technet.microsoft.com/en-us/exchange/default.aspx<br />http://technet.microsoft.com/en-us/exchange/bb288465.aspx<br /><ul><li>Training Offers—Exclusive for Launch Attendees </li></ul>www.microsoft.com/learning/careeroffers<br />http://msexchangeteam.com/URL here<br />http://social.technet.microsoft.com/Forums/en-US/exchange2010/threads<br />
  46. 46. © 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.<br />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.<br />