10. Clean Up Role WCF Role Web Site Role’ Cache Build Role Create as many roles as you need ‘knobs’ to adjust scale Loss of an instance results in 50% capacity loss in web site. Queue Drive Role Web Driven Role Loss of an instance results in just 25% capacity loss in web site. Consolidation of Roles provides more redundancy for same cost

11. SizeCPU CoresNetworkRAMLocal Storage Cost Small1Shared1.7GB250GB1 x Medium2Shared3.5GB500GB2 x Large4Shared7GB1000GB4 x Extra large8Dedicated15GB2000GB8 x

28. Dedicated compute cache roles must serve at least 120,000 cache requests per hour to be cheaper than Windows Azure storage Outside USA and Europe: use CDN for caching due to much lower bandwidth costs Dedicated compute cache roles must serve at least 120,000 cache requests per hour to be cheaper than Windows Azure storage Outside USA and Europe: use CDN for caching due to much lower bandwidth costs

30. Usage Compute Time Average Inactivity Period Compute Time Average Usage Compute Time Compute Time Average Usage Elastic Cloud Workflow Patterns