Windows Azure
Architecture, Services and Programming Model
Ilian Iliev
Telerik Corp.
www.telerik.com
What is Windows Azure?
Platform Overview and Architecture
The Microsoft Cloud
~100 Globally Distributed Data Centers
Quincy, WA
Chicago, IL
San Antonio, TX
Dublin, Ireland
Generation 4 DCs
3
The Microsoft Cloud
Highly available, scalable, and consistent application fabric environment
4
How Your Ideas are Shipped
without the Cloud?
Lets say you have an
idea?
What do you need to manage to ship
your idea to potential customers?
Managing environment
Network
Hard drive failure
Routers
Installing OS
Load balancing
Storage
Memory
Updating
Patching
Server acquisition
5
How Windows Azure solves
your problems?
 Windows Azure runs your application
code
 Inside virtual machines
 Managed by the fabric controller
6
The Microsoft Cloud

Categories of Services
Application Services
Software Services
Platform Services
Infrastructure Services
7
Windows Azure Platform
Application Services
Frameworks
Secure Token
Service
Security
Connectivity
Relational
Database
Data
Personal Data
Repository
Application
Marketplace
Information
Marketplace
Services
Hosting
Workflow
Hosting
Distributed
Cache
Declarative
Policies
Claims-Based
Identity
Federated
Identities
Service Bus
Composite
Applications
On-Premise
Bridging
ADO.NET,
ODBC, PHP
Transact-SQL
Synchronization
C / C++
Compute
Storage
Data
Win32
Unstructured
Data
Blobs
Message
Queues
Distributed
File System
VHD
Content
Distribution
8
Windows Azure Platform
Application Services
“Dublin”
Frameworks
“Velocity”
Security
Access Control
“Geneva”
Connectivity
Service Bus
Project
“Sydney”
SQL Azure
Data Sync
Data
Compute
Storage
Table Storage
Blob Storage
Queue
Drive
Content
Delivery
Network
9
Windows Azure Compute
Development, service hosting, &
management environment
Application Services

 .NET, Java PHP, Python, Ruby, native code
(C/C++, Win32, etc.)
“Dublin”
“Velocity”
Frameworks
 ASP.NET providers, FastCGI, memcached,
Access Control
“Geneva”
Security MySQL, Tomcat
 Full-trust – supports standard languages and APIs
Project
Service
Bus
Connectivity
 Secure certificate store
“Sydney”
 Management API’s, and logging and diagnostics
SQL Azure
Data
Data Sync
systems
Compute
Storage
Table Storage
Blob Storage
Queue
Drive
Content
Delivery
Network
10
Windows Azure Compute(2)

Multiple roles – Web, Worker, Virtual Machine (VHD)
Application Services

Multiple VM sizes
 1.6 GHz CPU x64, 1.75GB RAM, 100Mbps
network,
“Dublin”
“Velocity”
Frameworks
250GB volatile storage
Security Small (1X), Medium (2X),Access
LargeControl
(4X), X-Large (8X)“Geneva”

In-place rolling upgrades, organized
Service Bus by upgrade
domains
Connectivity
Data Walk each upgrade domain one at a time
Project
“Sydney”
SQL Azure
Data Sync
Compute
Storage
Table Storage
Blob Storage
Queue
Drive
Content
Delivery
Network
11
Windows Azure Diagnostics
Configurable trace, performance counter,
Windows
Application
Services event log, IIS log & file buffering

 Local data buffering quota management
“Dublin”
Frameworks
“Velocity”
 Query & modify from the cloud and from the
Access Control
“Geneva”
Security desktop per role instance
Project
Service Bus & on-demand“Sydney”
Connectivity
 Transfer to storage scheduled
Data
 Filter by data type, verbosity & time range SQL Azure
Data Sync
Compute
Storage
Table Storage
Blob Storage
Queue
Drive
Content
Delivery
Network
12
Windows Azure Storage
Application Services
 Rich data abstractions – tables, blobs, queues, drives,
CDN
“Dublin”
“Velocity”
Frameworks
 Capacity (100TB), throughput (100MB/sec),
transactions (1K req/sec)
Access Control
“Geneva”
Security
 High accessibility
 Supports geo-location
Project
Service
Bus
Connectivity
“Sydney”
 Language & platform agnostic REST APIs
 URL: http://<account>.<store>.core.windows.net
SQL Azure
Data
 Client libraries for .NET, Java, PHP, etc.
Data Sync
Compute
Storage
13
Windows Azure Table Storage
Application Services
Designed for structured data, not relational data
 Data definition is part of the application
“Dublin”
“Velocity”
Frameworks
 A Table is a set of Entities (records)
 An Entity is a set of Properties (fields)
Access Control
“Geneva”
Security
 No fixed schema
 Each property is stored as a <name, typed
Project
Service Bus
Connectivityvalue> pair
“Sydney”
 Two entities within the same table can have
SQL Azure
Data
different properties
Data Sync
 No schema is enforced

Compute
Storage
Table Storage
Blob Storage
Queue
Drive
Content
Delivery
Network
14
Windows Azure Blob Storage
Application Services
Storage for large, named files plus their metadata
 Block Blob
“Dublin”
“Velocity”
Frameworks
 Targeted at streaming workloads
 Each blob consists of a sequence of blocks
a Block
ID
Control
“Geneva”
Security  Each block is identified byAccess
 Size limit 200GB per blob
 Page Blob
Project
Serviceworkloads
Bus
Connectivity
 Targeted at random read/write
“Sydney”
 Each blob consists of an array of pages
 Each page is identified by its offset from the start of SQL Azure
Data
Data Sync
the blob
 Size limit 1TB per blob

Compute
Storage
Table Storage
Blob Storage
Queue
Drive
Content
Delivery
Network
15
Windows Azure Queue
Application
Services
 Performance efficient, highly available and provide reliable
message delivery
“Dublin”
Frameworks
 Asynchronous work dispatch
“Velocity”
 Inter-role communication
AccessFIFO
Control
Security  Polling based model; best-effort
data structure

Queue operations
Connectivity
 Create Queue
Data
> Message operations
Service
Bus Message
• Add
 Delete Queue
• Get Message(s)
 List Queues
• Peek Message(s)
 Get/Set Queue Metadata
• Delete Message
“Geneva”
Project
“Sydney”
SQL Azure
Data Sync
Compute
Storage
Table Storage
Blob Storage
Queue
Drive
Content
Delivery
Network
16
Windows Azure Drive
Application Services
 Provides a durable NTFS volume for Windows Azure
applications to use
“Dublin”drive “Velocity”
Frameworks
 Use existing NTFS APIs to access a durable
 Durability and survival of data on application
failover
Access Control
“Geneva”
Security
 Enables migrating existing NTFS applications to
Project
Service Bus
Connectivitythe cloud
“Sydney”
 Drives can be up to 1TB; a VM can dynamically
mount up to 8 drives
SQL Azure
Data
Data Sync
Compute
Storage
Table Storage
Blob Storage
Queue
Drive
Content
Delivery
Network
17
Windows Azure Drive(2)
Application Services

A Windows Azure Drive is a Page Blob
“Dublin”
Frameworks
 Example, mount Page Blob as X:\
Security
“Velocity”
 http://<account>.blob.core.windows.net/<
Access Control
“Geneva”
container>/<blob>
Project
Service
Busdurable to the“Sydney”
Connectivity
 All writes to drive are
made
Page Blob
Data
 Drive made durable through standard
Page Blob replication
Compute
Storage
Table Storage
Blob Storage
Queue
Drive
SQL Azure
Data Sync
Content
Delivery
Network
18
Windows Azure Content
Delivery Network
Application Services
Provides high-bandwidth global blob content delivery
 18 locations globally (US, Europe, Asia, Australia and
“Dublin”
“Velocity”
FrameworksSouth America), and growing
 Blob service URL vs. CDN URL
Access Control
“Geneva”
Security  Blob URL: http://<account>.blob.core.windows.net/
 CDN URL: http://<guid>.vo.msecnd.net/
 Support for custom domain names
Project
Service Bus
Connectivity
 Access details
“Sydney”
 Blobs are cached in CDN until the TTL passes
SQL Azure
 Use per-blob HTTP Cache-Control policy for TTL (new)
Data
Data Sync
 CDN provides only anonymous HTTP access

Compute
Storage
Table Storage
Blob Storage
Queue
Drive
Content
Delivery
Network
19
SQL Azure
Highly available, scalable, and consistent distributed
relational
database; geo-replication and geo-location of data
Application
Services
 Relational database, provided as a service
 Highly symmetrical development and tooling experience
“Dublin”
“Velocity”
Frameworks
(use TDS protocol and T-SQL)
 Highly scaled out, on commodity hardware
foundation
Access Control
“Geneva”
Security  Built on the SQL Server technology
 Editions: Web (1GB), Business (10GB)

Project
“Sydney”
Service Bus
Connectivity
SQL Azure
Data Sync
Data
Compute
Storage
Table Storage
Blob Storage
Queue
Drive
Content
Delivery
Network
20
SQL Azure Data Sync
Application Services

Frameworks
Security

Tools for data synchronization with SQL
Azure
“Velocity”
 Connect on-premises apps“Dublin”
with the cloud
 Create cached-mode clients
Built on Microsoft
Sync
Framework and “Geneva”
Access
Control
ADO.NET Sync Services
Project
“Sydney”
Service Bus
Connectivity
SQL Azure
Data Sync
Data
Compute
Storage
Table Storage
Blob Storage
Queue
Drive
Content
Delivery
Network
21
AppFabric Service Bus
Securely connect applications
 Over the internet
 Across any network topology
 Across organizational
“Dublin”
“Velocity”
boundaries
 Primary application patterns
 Eventing – notify applications
Access Control
“Geneva”
and/or devices
 Service Remoting – securely
Project
services
Service Busproject on-premises“Sydney”
out to the cloud
 Tunneling – app-to-app
SQL Azure
communication with
Data Sync
NAT/Firewall traversal

Application Services
Frameworks
Security
Connectivity
Data
Compute
Storage
Table Storage
Blob Storage
Queue
Drive
Content
Delivery
Network
22
AppFabric Access Control
Provides outsourcing of claimsbased access control for REST
web services
 Key capabilities:
“Dublin”
 Usable
from any “Velocity”
platform
 Low friction way to onboard
new clients
Access Control
“Geneva”
 Integrates with ADFS v2
 Supports OAuth WRAP
Project /
Service BusSWT
“Sydney”
 Enables simple delegation
SQL Azure
 Used today by Service Bus and
Data Sync
“Dallas”

Application Services
Frameworks
Security
Connectivity
Data
Compute
Storage
Table Storage
Blob Storage
Queue
Drive
Content
Delivery
Network
23
“Geneva”
>
>
Next generation identity and access management
platform
Application Services
• Claims-based access and single sign-on for onpremise and cloud-based applications in the “Dublin”
Frameworks
enterprise, across organizations, and on the Web
“Velocity”
“Geneva
Access Foundation)
Control
Security Framework“ (Windows Identity
“Geneva”
• Provides .NET development tools, which includes
pre-built, user-access logic that Service
externalizes
Bus
Connectivity
authentication from applications. It helps
developers build claims-aware .NET applications,
Data
plus build custom security token services (STS)
>
Project
“Sydney”
SQL Azure
Data Sync
“Geneva Server“
Compute
• An STS for IT that issues and transforms claims
and other tokens, manages user access and
Table Storage and
Blob Storage
Queue
Drive
Storage
enables federation
access management
for
simplified single sign-on
Content
Delivery
Network
24
“Geneva”
“CardSpace Geneva”
Application Services
helping users navigate between multiple
logons for simplified single sign-on
Frameworks
“Dublin”
providing complete user control and
transparency for how personal
information
is
Access
Control
Security
shared
“Geneva”
Project
“Sydney”
Service Bus
Connectivity
“Velocity”
SQL Azure
Data Sync
Data
Compute
Storage
Table Storage
Blob Storage
Queue
Drive
Content
Delivery
Network
25
“Velocity”

Distributed in-memory cache platform for
Application Services
developing
scalable, available, and highlyperformance applications
Frameworks
“Dublin”
Security
Caches any serializable CLRAccess
object
and
Control
provides access through simple cache APIs
Connectivity
Supports enterprise scale: tens
Serviceto
Bus
hundreds of computers
Data
Configurable to run as a service accessed
over the network
Compute
Supports dynamic scaling and automatic
load balancing
Storage
Table Storage
Blob Storage
Queue
Drive
“Velocity”
“Geneva”
Project
“Sydney”
SQL Azure
Data Sync
Content
Delivery
Network
26
“Velocity”
 Supports continuous availability of cached data
Application
by storingServices
copies on separate cache hosts
 Integration with administration and monitoring
“Dublin”
Frameworks
tools such as Event Tracing for Windows (ETW)
and System Center.
“Velocity”
Security
Access Control
“Geneva”
Connectivity
Service Bus
Project
“Sydney”
SQL Azure
Data Sync
Data
Compute
Storage
Table Storage
Blob Storage
Queue
Drive
Content
Delivery
Network
27
“Dublin”

Evolution of WAS/IIS and Windows App
Application
Services
Server
role to
run and manage WF and
WCF services
Frameworks
Enhances the hosting of Windows
Communication Foundation (WCF)
and Windows Workflow (WF) inAccess
the Control
Security
Windows Process Activation Service
(WAS)
Service Bus
Connectivity
 Simplified deployment and
management of WCF and WF
Data
services hosted in WAS
Compute
Configuration of persistence for
durable workflows
Storage
Table Storage
Blob Storage
Queue
“Dublin”
“Velocity”
“Geneva”
Project
“Sydney”
SQL Azure
Data Sync
Drive
Content
Delivery
Network
28
“Dublin”
 Customizable tracking profiles with
Application
Services
dedicated,
queryable storage for
tracked data
Frameworks
 Customizable monitoring of hosted
services
“Dublin”
“Velocity”
Security
Access Control
“Geneva”
Connectivity
Service Bus
Project
“Sydney”
SQL Azure
Data Sync
Data
Compute
Storage
Table Storage
Blob Storage
Queue
Drive
Content
Delivery
Network
29
“Dallas”
Application Services
Frameworks
“Dublin”
Information-as-a-service
 Discover, acquire, and consume structured, blob,
Access
Security
and real-time data to power
anyControl
application – on
any platform and any screen size
Service Bus
Connectivity
 Brokerage Business – partner driven ecosystem and
global reach to deliver data and functionality to
Data
developers and information workers
 Analytics and Reporting – single click analysis to
augment private data with public data
Compute
 Built on Windows Azure and SQL Azure

Storage
Table Storage
Blob Storage
Queue
Drive
“Velocity”
“Geneva”
Project
“Sydney”
SQL Azure
Data Sync
Content
Delivery
Network
30
Azure Pricing

Computing Nodes
 Shared CPU, 768 MB RAM
 $0.02 / hour ($15 / month)
 1 Core, 1.75 GB RAM
 $0.12 / hour ($90 / month)

(as of April 2012)
Storage
 $0.125 / GB + $0.01 / 10000 operations

SQL Azure Database
 100 MB – $0.0067 / hour ($5 / month)
 1 GB – $0.0133 / hour ($10 / month)
31
AppFabric Service Bus
32
AppFabric Access Control
33
Table Storage Concepts
Accounts
Tables
Entities
Email = …
Name = …
Users
Email = …
Name = …
moviesonline
Movies
Genre = …
Title = …
Genre = …
Title = …
34
Queue Storage Concepts
Accounts
Queues
Messages
128 x 128
http://...
thumbnailjobs
256 x 256
http://...
sally
http://...
traverselinks
http://...
35
Blob Storage Concepts
Accounts
Container
Blob
PIC01.JPG
images
PIC02.JPG
sally
movies
MOV1.AVI
36
Blob Storage Concepts
Adding Blocks and Pages
Accounts
Container
Blob
Blocks
PIC01.JPG
images
PIC02.JPG
sally
movies
MOV1.AVI
Block or
Page 1
Block or
Page 1
Block or
Page 1
37
Windows Azure
Questions?
http://clouddevcourse.telerik.com
Homework
1.
Install Windows Azure SDK for your favorite
programming language
 E.g. C#, Java, PHP or JavaScript
2.
Create a "Hello World" Azure application
 Run it in the Azure Compute emulator
3.
Create an application for uploading, listing and
downloading files from Azure Blobs
 Run it in the Azure Storage emulator

As a result of your homework submit the source
code of your Azure applications.
39