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Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
Disaster Recovery 101
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Disaster Recovery 101

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  • 1. Disaster Recovery 101<br />Brent Ozar, Quest Software<br />
  • 2. Brent Ozar<br />SQL Server Expert for Quest Software<br />Former SQL DBA for $7b company inHurricane Alley<br />Managed &gt;80tb SAN, VMware<br />
  • 3. Today’s Agenda<br />HA vs DR<br />HA Options<br />DR Options<br />Backup Best Practices<br />Learned the Hard Way<br />Resources<br />
  • 4. Common Backup Schedules<br />Daily fulls<br />Daily fulls, frequent t-logs<br />Weekly fulls, daily diffs, frequent t-logs<br />“What backups?”<br />
  • 5. High Availability is for:<br />Disaster Recovery is for:<br />Photo licensed with Creative Commons, used from:http://www.flickr.com/photos/melancon/280076809/<br />Photo licensed with Creative Commons, used from:http://www.flickr.com/photos/meltedplastic/2854777253/<br />
  • 6. High Availability:<br />Disaster Recovery:<br /><ul><li>Replication
  • 7. Asynchronous Mirroring
  • 8. Log Shipping
  • 9. SAN Replication
  • 10. Virtualization Replication
  • 11. Clustering
  • 12. Synchronous Mirroring
  • 13. Replication</li></ul>Photo licensed with Creative Commons, used from:http://www.flickr.com/photos/melancon/280076809/<br />Photo licensed with Creative Commons, used from:http://www.flickr.com/photos/meltedplastic/2854777253/<br />
  • 14. HA: Clustering<br />
  • 15. HA: Synchronous Mirroring<br />
  • 16. Both HA, DR: Replication<br />
  • 17. DR: Asynchronous Mirroring<br />
  • 18. DR: Log Shipping<br />
  • 19. DR: SAN Replication<br />
  • 20. DR: Virtualization Replication<br />
  • 21. Brent’s Personal Favorites<br />High Availability:<br />Disaster Recovery:<br /><ul><li>Replication
  • 22. Asynchronous Mirroring
  • 23. Log Shipping
  • 24. SAN Replication
  • 25. Virtualization Replication
  • 26. Clustering
  • 27. Synchronous Mirroring
  • 28. Replication</li></ul>Photo licensed with Creative Commons, used from:http://www.flickr.com/photos/melancon/280076809/<br />Photo licensed with Creative Commons, used from:http://www.flickr.com/photos/meltedplastic/2854777253/<br />
  • 29. Backup Best Practices<br />Never back up directly to local disk<br />Back up to file share<br />Back up to different SAN<br />Back flat files up to tape<br />Get the tapes offsite fast<br />If it’s really critical, mirror the backups<br />Photo licensed with Creative Commons, used from:http://www.flickr.com/photos/darwinbell/465459020/<br />
  • 30. Avoid Agents<br />Lose schedule control<br />Can’t gauge success<br />Photo licensed with Creative Commons, used from:http://www.flickr.com/photos/practicalowl/314989744/<br />
  • 31. Do Fire Drills Ahead Of Time<br />Build a standalone restore testbed<br />Document how long a restore will take for managers<br />Update it quarterly<br />Trust no one<br />Photo licensed with Creative Commons, used from:http://www.flickr.com/photos/millzero/705902956/<br />
  • 32. Tale of Two Bookmark Services<br />
  • 33. http://delicious.com/brento<br />
  • 34. Worst Case Scenario<br />
  • 35. Lessons Learned<br />Test your backups<br />Retain your backups<br />Know business value of backups<br />
  • 36. Log Shipping Lesson Learned<br />Production<br />SQL Server<br />High Availability<br />SQL Server<br />Log Shipping<br />SAN #1<br />SAN #2<br />Production SQL Arrays<br />HASQL Arrays<br />
  • 37. Surprise!<br />Production<br />SQL Server<br />High Availability<br />SQL Server<br />File Server<br />Log Shipping<br />Log Shipping<br />SAN #1<br />SAN #2<br />Production SQL Arrays<br />HASQL Arrays<br />File Server Arrays<br />
  • 38. Brent’s Role Swap of Doom<br />Disaster Recovery<br />Datacenter<br />Production<br />Datacenter<br />100MB connection<br />Data synced to DR<br />
  • 39. Brent’s Role Swap of Doom<br />Disaster Recovery<br />Datacenter<br />Production<br />Datacenter<br />100MB connection<br />Data synced back to production<br />
  • 40. Brent’s Role Swap of Doom<br />Disaster Recovery<br />Datacenter<br />Production<br />Datacenter<br />100MB connection<br />Data synced back to production<br />PLUS<br />Users running applications that query the database in DR<br />1gb Ethernet<br />
  • 41. Brent’s Role Swap of Doom<br />Disaster Recovery<br />Datacenter<br />Production<br />Datacenter<br />100MB connection<br />Tape Jukeboxes w/10 Drives<br />Tape Jukeboxes w/6 Drives<br />
  • 42. Building a Bug-Out Bag<br />Photo Licensed with Creative Commons from http://www.flickr.com/photos/78256324@N00/394214262/<br />
  • 43. Photo Licensed with Creative Commons from http://www.flickr.com/photos/moflytier/45842386/<br />
  • 44. Personal Contents<br />Power inverter<br />Gadget chargers<br />Clothes & toiletries<br />Water & food<br />Insurance papers<br />Road atlas<br />Flashlight<br />Pillow<br />
  • 45. Work Contents<br />Software installs<br />License keys<br />Cell data cardor Verizon MiFi<br />Contact list(updated annually)<br />
  • 46. Contact Lists<br />Family<br />Coworkers<br />Managers<br />Alternate Offices<br />HW Vendors<br />SW Vendors<br />ISP/Colo<br />Photo Licensed with Creative Commons from http://www.flickr.com/photos/toastforbrekkie/1237898664/<br />
  • 47. Lessons Learned<br />Trust, but verify<br />Test, test, test<br />Whiteboard your environment<br />Look for single points of failure<br />Get a bug-out bag<br />
  • 48. Resources<br /><ul><li>Visit our SQL Server technical resource blog at: www.sqlserverpedia.com - feel free to send your SQL Server related technical questions to:ask@sqlserverpedia.com
  • 49. Visit our dedicated SQL Server community site at: http://sqlserver.quest.com
  • 50. Check out our “Backstage” area with all of our collateral and upcoming events including our ‘Pain of the Week’ webcasts:
  • 51. www.quest.com/backstage
  • 52. www.quest.com/backstage/pow.aspx</li>

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