8. Disaster

9. RTO

14. SLAYearlyMonthly 99%3.65 days7.20 hours 99.5%1.83 days3.60 hours 99.9%8.76 hours43.8 minutes 99.95%4.38 hours21.56 minutes 99.99%53 minutes4.32 minutes 99.999%5.26 minutes25.9 seconds

15. $$$$$$$$$$ Few days Few hours 5-10 Minutes Few Minutes 99.9% 99.95% 99.99% 99.999%

21. $$$$$$$$$$ > Few Hours > 1 Hour > 5 Minutes No Downtime Cold DR (Most Common) Warm DR (Recommended) Hot DR (Least Common) Hot HA (Live/Live Config)

22. Client LB App Database … Data Center #1 File Storage Data Center #2 File Storage

23. Client LB SQL Database … Region #1 Blob Storage On-Premises File Storage Cloud Services App Fault Domain #N Fault Domain #1

24. Client LB SQL Database … Region #1 Blob Storage On-Premises File Storage Cloud Services App Fault Domain #N Fault Domain #1 Database App SB Queue

25. Client LB App Master … Data Center #1 C LB App … Data Center #2 Slave Replication File Storage Replication LB App Master … Data Center #2 File Storage C LB App … Data Center #1 Slave File Storage Replication

26. LB SQL Database Region #2 Blob Storage Fault Domain #1 App Fault Domain #2 App LB SQL Database … Region #2 Blob Storage Fault Domain #1 App Fault Domain #2 App Client LB SQL Database … Region #1 Blob Storage Fault Domain #1 App Fault Domain #2 App Replication

27. LB App … Data Center #1 File Storage LB App … Data Center #2 File Storage Client Merge Replication

28. LB … SQL Database Data Center #2 Blob Storage Fault Domain #1 App Fault Domain #2 App LB SQL Database … Region #2 Blob Storage Fault Domain #1 App Fault Domain #2 App Client LB SQL Database … Region #1 Blob Storage Fault Domain #1 App Fault Domain #2 App Replication

29. LB … SQL Database Region #2 Blob Storage Fault Domain #1 App Fault Domain #2 App LB SQL Database … Region #2 Blob Storage Fault Domain #1 App Fault Domain #2 App Client LB SQL Database … Region #1 Blob Storage Fault Domain #1 App Fault Domain #2 App Replication SB Queue

30. LB … SQL Database Region #2 Blob Storage Fault Domain #1 App Fault Domain #2 App Backup LB SQL Database … Region #2 Blob Storage Fault Domain #1 App Fault Domain #2 App Client LB SQL Database … Region #1 Blob Storage Fault Domain #1 App Fault Domain #2 App Replication

31. LB App … Data Center #1 File Storage LB App … Data Center #2 File Storage Your Site Merge Replication

32. LB SQL Server on VM … Region #2 Blob Storage Fault Domain #1 App Fault Domain #2 App Client LB SQL Server on VM … Region #1 Blob Storage Fault Domain #1 App Fault Domain #2 App Replication

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