DPR311

Traditional IT Infrastructure (as a Service) Platform (as a Service) Storage Servers Networking Operating System Middleware Virtualization Data Applications Runtime Storage Servers Networking Operating System Middleware Virtualization Data Applications Runtime You manage Delivered as a service You manage Storage Servers Networking Operating System Middleware Virtualization Applications Runtime Data Software (as a Service) Delivered as a service Storage Servers Networking Operating System Middleware Virtualization Applications Runtime Data

Storage Dynamic Tabular Data Blobs Message Queues Distributed File System Content Distribution Data Transact- SQL Data Synchronization Relational Database ADO.NET, ODBC, PHP Integration MessasgingRegistryService Bus Security Claims- Based Identity Federated Identities Secure Token Service Declarative Policies Marketplace Application Marketplace Information Marketplace Frameworks Workflow Hosting Distributed Cache Services Hosting Compute C / C++ Win32 VHD On-Premises Bridging Networking

Compute Storage Data Relational Database Integration Security Marketplace Frameworks Table Storage Blob StorageQueueDrive Content Delivery Network VM Role Networking Connect Application s DataMarket Access Control Service Bus Composite App Caching Web RoleWorker Role Reporting DataSync Integration Connect (BizTalk)

Questions To Consider e.g., web site sharing public data Careful decomposition needed

Application DataState must be replicated, by app directly or in a replicated store Application Configuration & Installation Configuration state only a cache; no lengthy install step Application ScaleApp must scale horizontally (scale-out) not vertically (scale-up) Application Dependencies App must be able to run on cloud platform with no special hardware needs Latency Needs Shared cloud systems may not guarantee uniform/low latency among app components Connectivity NeedsIntra- and inter- app connectivity needs must be clear Data Sensitivity Public clouds may not be able to host all sensitive data; encryption may be needed Regulation & Compliance Location and type of cloud matters

Active unique players 250M monthly (updated ) ; 60M daily 90M+ in CityVille 1M daily 4 days after launch; 10M after 60 days 3B neighborhood connections Cloud infrastructure “Z Cloud” private cloud implementation Westmere generation of Intel Xeon processors 2-4 CPUs with 24-96GB of RAM and GB of disk 12,000 Amazon EC2 nodes (updated ) Adding 1,000 servers per week (updated ) Moving 1PB data per day (updated ) Public cloud for variable capacity, private cloud for predictable capacity Source(s): “How FarmVille Scales to Harvest 75 Million Players a Month”, HighScalability.com, , Tedd Hoff “Zynga Moves 1 Petabyte Of Data Daily; Adds 1,000 Servers A Week”, TechCrunch.com, , Leena Rao “Lessons From FarmVille: How Zynga Uses The Cloud”; InformationWeek, , Charles Babcock

Storage Data Integration Security Compute Networking SQL Server ADFS2 BizTalk.NET WCF Connect SQL Azure Data Sync AppFabric Access Control AppFabric Service Bus.NET WCF Blob Storage Table Storage Queue Storage AppFabric Integration

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