1. Saranya Sriram Developer Evangelist | Microsoft saranyas@microsoft.com

2. Azure™ Services Platform

3. Azure™ Services Platform

4. This Talk Windows Azure basics Windows Azure core programming concepts
Model and architecture
Demo: Basic cloud program
Demo: Cloud on your desktop
Windows Azure core
programming concepts
Web and worker applications
Storage capabilities
Demo: Media library application

5. What is the cloud ? A set of connected servers
On which developers can:
Install and run services
Store and retrieve data

6. Desktop And Cloud Hardware
Desktop Hardware
Cloud Hardware
Infrequent catastrophic system failures
Ability to scale limited by CPU/disk/ memory slots
Frequent component failures infrequent system failure
Ability to scale limited by power/real estate/opex

7. Windows Azure
The Windows Azure provides core technologies for building rich services on top of unreliable but scalable hardware (i.e., a cloud operating system)
Provides features that mask common sources of failures to greatly simplify programming
Supports building applications that scale
Programming tools and interfaces are designed to be familiar to traditional desktop programmer
However, introduce new concepts that are similar to existing ones at a different abstraction level

8. What is Windows Azure? It is an operating system for the cloud
It is designed for utility computing
Main Features being
Service Management
Compute
Storage
Developer Experience

9. Desktop And Related Azure Concepts
Windows Azure
EXE
Service Package
Application Configuration
Service Configuration
Manifest
Service Definition
Service Role
Web Role
Worker Role
DLL
Windows Forms Library
Windows Service
Desktop Data Store
Internet Data Store

10. Windows Azure Basics Fabric Controller
Owns all the data center hardware
Uses the inventory to host services
Similar to what a per machine operating system does with applications
The FC provisions the hardware as necessary
Maintains the health of the hardware
Deploys applications to free resources
Maintains the health of those applications

11. Modeling Simple Services
Public Internet
Template automatically maps to service model
Frontend
Web Role
Background
Process Role
Load
Balancer
Fundamental Services

12. Windows Azure Basics Service Concepts Service definition
Defines aspects of a service that cannot be changed without redeployment
Types of roles and static role configuration
Set of configuration settings for a role
Contract with the environment code runs
Service configurations
Defines values for properties that can be dynamically updated for a running deployment
Values of a configuration parameter
Number of running instances

13. Accessing Windows Azure
End Users
Your Cloud
Application
Microsoft Visual Studio
Development Environment
Coming Soon
Developers

14. - Basic Cloud Applictaion - The cloud on your desktop
demo
- Basic Cloud Applictaion - The cloud on your desktop

15. Web Role Web farm that handles request from the internet
IIS7 hosted web core
Hosts ASP.NET
XML based configuration of IIS7
Integrated managed pipeline
Supports SSL
Windows Azure code access security policy (CAS) for managed code
Public Internet
Web Role
Load
Balancer
Storage Services

16. Worker Role No inbound network connections
Can read requests from queue in storage
Windows Azure specific CAS policy for managed code
Public Internet
Worker Role
Storage Service

17. Windows Azure Storage Abstractions
Blobs – provide a simple interface for storing named files along with metadata for the file
Tables – provide structured storage. A table is a set of entities, which contain a set of properties
Queues – provide reliable storage and delivery of messages for an application

18. Blob Storage Concepts Key concepts account, container, blob, and blocks
Pictures
IMG001.JPG
IMG002.JPG
Movies
MOV1.AVI
Block AAAA
Block AAAB
Block AAAC
Block

19. Queue Storage Concepts Account, queue, and message
Thumbnail Jobs
128x128,
256x256,
Indexing Jobs

20. Table Storage Concepts Account, table, and entity
Users
Name=…hash=…
PhotoIndex
Tag=…id=…
Tag=…,id=…

21. - Media (Picture / Video) library
demo
- Media (Picture / Video) library

22. Share Photos/Videos Service Architecture
Public Internet
Web Role
(Blob)
Worker Role
(Queue)
Load
Balancer
Storage Service

23. Key Take Aways Reliable and scalable Familiar Open platform
Most faults masked from the developer
Supports partitioning of data and stateless programming model for building scalable systems
Familiar
Existing technologies like ASP.NET interoperate well with Windows Azure
Open platform
Connect outbound to any server
Open protocols and APIs on all components

24. References Environment: http://www.Azure.Com/windows SDKs:
Windows Vista SP1 (when installing on Windows Vista)
.NET Framework 3.5 SP1
IIS 7.0 (with ASP.NET and WCF HTTP Activation)
Microsoft SQL Server Express 2005 or Microsoft SQL Server Express 2008
Windows PowerShell (optional)
Microsoft .NET Framework 3.5 Service Pack 1
Microsoft Visual Studio 2008 Service Pack 1 (Installer)
SDKs:
Windows® Azure™ Software Development Kit (October 2008 CTP)
Windows Azure Tools for Microsoft Visual Studio October 2008 CTP
SQL Data Services (SDS) SDK (CTP)
Microsoft .net Services(Nov 2008 CTP) SDK

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