Understanding the Windows Azure Platform - Dec 2010

Understanding the Windows Azure Platform
David Gristwood
Application Architect, Microsoft
blogs.msdn.com/david_gristwood

Platform as a Service

CLOUD COMPUTING
INFRASTRUCTURE
PLATFORM
SOFTWARE
AS A SERVICE
AS A SERVICE
AS A SERVICE
IT as a Service

Platform as a Service
Platform Today
Server, VM, Network, Storage, App
App
Patch, Service Release, New Version
Maintained for You
Assembly Required
Ready-Made Services
Custom, Inconsistent
Standardized
Plan for Peak Load
On-Demand Scale
Built to Avoid & Recover from Failure
Built to Expect & Withstand Failure

The OS for PaaS is:

Compute ▪ Storage ▪ Networking ▪ Identity & Security
FOUNDATION
Web ▪ HPC ▪ Caching ▪ Messaging ▪ Workflow ▪ Content Delivery
SERVICES
Relational Database ▪ Reporting & Analytics ▪ Data Sync
INFORMATION
Online Portal ▪ Marketplace ▪ Development Tools ▪ Management Tools
TOOLS

YOU DECIDE:
Language, Dev Framework, Dev Tool, Management Tool, Datacenter

Windows Azure 0pportunities
Move Applications to the Cloud
Store Data in
the Cloud
Extend Applications to the Cloud
Create New Solutions by Combining
Cloud Services
Create New
Cloud Services

The Windows Azure Philosophy

Windows Azure is about Scale
Designed from the ground up for true Internet scale
Offers global presence
Platform for next generation cloud aware systems
Ride the “network effect”
LinkedIn: 16 months for first million users, 11 days for most recent million
Facebook: 5 years to hit 250m users, 8 months to double
Scale up and scale down
www.flickr.com/photos/ScroffTheBad

Operational Excellence & Elasticity
“Growing Fast”
“Predictable Bursting”
Need high reliability
LOB, software as a service
Need massive scale
Social networking, web 2.0
Have variable load / unpredictable lifetime
Ticketing, marketing
Parallel processing
Financial applications
Don’t fit in well with a company’s data center
Avoid IT dept, support joint ventures
Benefit from external storage
Archive
“On and Off”
“Unpredictable Bursting”
Average Usage
Compute
Compute
Compute
Compute
Average Usage
Average
Usage
Average Usage
Time
Time
Time
Time

Helps your Systems Scale
Most architecture is hidden deep inside code
WindowsAzure encourages you to define your application into constituent parts
Windows Azure supports cloud enabled applications
Windows Azure can scale the parts of your application as appropriate
www.flickr.com/photos/39818355@N00/2128626176

Flexible Architecture
Systems evolve over time
Cloud is not an “all or nothing” proposition
Hybrid model well supported
Windows Azure makes it easier to extend to the cloud
www.flickr.com/photos/tomkpunkt/3695066577

Opening up the Cloud
Allow developers to apply their existing skills to the cloud
Support for .NET, Ruby, PHP, Java
Interoperability with any platform, tools or technology
www.flickr.com/photos/h19/2306213399/in/set-72157594224557858

Flexible Business Model
No up front hardware purchase
“Pay as you go” model
Ideal in current economical climate
www.flickr.com/photos/cleebster/2508660124

Microsoft Data Centers

Windows Azure Platform Availability
Northern Europe
North Central USA
Eastern Asia
Western Europe
South Central USA
Southeast Asia

Delivering an Efficient & Sustainable Cloud

Chicago Datacentre – Scalable, Sustainable
One of world’s largest datacentres using containers, on-line on July 2009
Cost $500 million
700k sqft facility (approx 16 football fields)
30 MegaWatts today, 60 MW for future use
Security
ISO 27001:2005 Accreditation - Security Management
SAS 70 Type I and II Attestations - Audit standard for our internal controls system
Containers
40 ft containers with 1800-2500 servers
10 x density traditional datacentres
Optimizes efficiency, reduces wastes & carbon footprint
Delivers an average PUE of 1.22

Dublin Datacentre
First Mega Datacentre built outside the US, on-line on July 2009
Cost $500 million, 303+sq ft facility and growing
EU Datacenter Best Practice Award Winner
Stand-alone Server Pods
Environmentally Sustainable
Free Air-Cooling via Air-Side Economization
50% less energy use vs. traditional facilities
1 % water use vs. traditional facilities
5.4MegaWatts today, 22.2 MW for future use
ISO 27001:2005 Accreditation
SAS 70 Type I and II Attestations

Windows Azure Platform Appliance
Azure Service in Your Datacenter
Identical to the hardware in Azure datacenters
Delivered by a choice of hardware partners
Benefits
Physical Control
Geographic Proximity
Regulatory Compliance
Data Sovereignty
Currently in development with several partners
Fujitsu, Dell, HP, and eBay
Microsoft
Service Provider
Customer

The Windows Azure Platform

Window Azure Platform – The Big Picture
Windows Azure AppFabric
SQL Azure
Applications
Windows Azure
Applications
Others
Mobile
Desktop
Server

Windows Azure Development

Windows Azure Tools for Visual Studio
Windows Azure Tooling
Visual Studio 2008
Visual Studio 2010
Project Templates
Model & Config Tooling
Package & 1 Click Deploy
Debugging Support
Storage Explorer
Server Explorer
IntelliTrace Support
Windows Azure SDK
Windows Server 2008 or Windows 7
SQL Express 2005+
.NET 3.5 SP1+
Development Fabric
Development Storage
.NET APIs

Visual Studio 2010

Development Fabric and Storage
Local Machine
Windows Azure Simulation Environment
Development Storage
Development Fabric

Windows Azure Platform Management Portal
Faster and more user friendly portal for Windows Azure Platform services
Enables more visibility and control
Supports multiple users and roles
Enable Remote Desktop and easily connect to Windows Azure instances
Built on the Windows Azure Service Management APIs

Remote Desktop
Portal-integrated Remote Desktop access to instances within your deployment
Use standard Remote Desktop client
Dynamic configuration of Remote Desktop settings
Credentials
Enable/Disable
Expiration of credentials
Ability to take instances on/off the load balancer for debugging

Windows Azure Building Blocks

Application
Compute
Storage
Fabric
Config
AppFabric
Applications
SQL Azure
Windows Azure
Applications
Mobile
Desktop
Server
Others

Azure Compute Building Blocks
Windows Server 2008 x64 Virtual Machine
.NET Framework – 3.5 SP1 and 4.0
Supports Full Trust but no Admin rights
Native Code in User Mode
Fabric manages role lifecycle
Web Role
Worker Role
Hosted IIS 7
HTTP/HTTPS
ASP.NET
Fast CGI + PHP
Managed Code Start
Inbound on
Any TCP Port
HTTP/HTTPS

VM Size in Windows Azure
Windows Azure
Supports Various VM Sizes
Size set on Role in Service Definition
Service can have multiple roles
Balance of Performance per node vs. High Availability from multiple nodes
Set in Service Model definitionAll instances of role will be of equal size

Role Programming Model
Inherits RoleEntryPoint
OnStart() Method
Called by Fabric on startup, allows you to perform initialization tasks.
Reports Busy status to load balancer until you return true.
Run() Method
Main logic is here – can do anything, typically infinite loop. Should never exit.
OnStop() Method
Called when role is to be shutdown, graceful exit.
30 Seconds to tidy up
You call into RoleEnvironment to enumerate roles, endpoints, etc

Windows Azure Storage Building Blocks
Storage
Queue
Blobs &Drives
Account
Tables
Each storage account can hold up to 100 TB

Windows Azure Blobs
Provide simple interface for storing named files along with metadata for the file
Blobs
Containers
Photo1.png
Photo2.png
Pictures
Photo3.png

Windows Azure Blobfeatures
REST based API
myaccount.blob.core.windows.net/mycontainer/myblob.jpg
Blob Service API
PutBlob, GetBlob, DeleteBlob, CopyBlob, SnapshotBlob, LeaseBlob, etc
Block Blob for streaming
Maximum size 200Gb
Page Blobfor random read/write operations
Maximum size 1Tb

Windows Azure Drives
Page Blob formatted as a NTFS single volume Virtual Hard Drive (VHD)
NTFS APIs providing durable file storage on Page Blobs
Drives can be up to 1TB, up to 16 can be mounted
Can upload VHD via Page Blob then mount
Ease migration of existing Windows applications to Azure
Durability and survival of data on application failover or hardware failure

Windows Azure Tables
Structured storage via entities, containing sets of properties
Entities
Tables
Genre = …
Title = …
Movies
Genre = …
Title = …
Actors
Name = …
DOB = …

Windows Azure Tables
Provides Massively Scalable Structured Storage
Billions of entities (rows) and TBs of data
Can utilise thousands of servers as it scales up
Triple replicated for durability
Familiar and easy to use REST based API
Each entity can have up to 255 properties
PartitionKey & RowKey as key and index
Timestamp for optimistic concurrency
No fixed schema for all other properties
Property is stored as a <name, typed value> pair
MyTable1
Entity: Sports Car
Entity: Car
Entity: Customer

Table Partitions and Rows

Windows Azure Queues
Provide reliable storage and delivery of messages
Messages
Queues
“Body1”
“Body2”
ThumbnailJobs
“Body3”

Windows Azure Queues
Provide reliable storage and delivery of messages
Max size of message 8 Kb
Store URI to blog / table for larger data
Messages must explicitly be deleted
Set message expiration timeout
Message de-queue count for poison messages
Input Queue (Work Items)
Queue
Worker Role
Web Role
Worker Role
Web Role
Worker Role
Web Role
Worker Role

Notes on Queues
Sleep when queue is empty
Ensure message processing is idempotent
If Worker role crashes, message becomes visible for another Worker to process
f(x) = f(f(x))
Ensure message processing is commutative
Messages will get handled out of order
Judicious use of Try/Catch
Check for poison messages
For extreme throughput (>500 tps)
Use multiple queues
Read messages in batches or multiple work items per message

A Common Windows Azure Pattern
Worker Role
Web Role
Queue
Storage
Blob
Storage

Windows Azure Features

Service Management API
Provide Lights-Out Service Management
Manage services programmatically via REST-based API
X509 client certificates for authentication
Viewing, creating, deleting, swapping, modifying configuration settings, etc on deployments

Windows Azure Diagnostics
SDK component providing distributed monitoring & data collection for cloud apps
Support Standard Diagnostics APIs
Trace, Debug normally
Manage multiple role instances centrally
Choose what to collect & when to collect it
Event Logs, Trace/Debug, Performance Counters, IIS Logs, Crash Dumps, Arbitrary log files
Everything is remotely configurable
Role Instance
Role
Local directory storage
Diagnostic Monitor

Service Management CmdLets
PowerShell cmdlets wrapping Azure Service Management and Diagnostics API
Simple to script out deployments, upgrades, scaling
Deploy new services
Upgrade services
Manage storage accounts
Transfer diagnostics information

Service Upgrade Models
Rolling upgrade (aka “In-place”)
Roles are updated across update domains one at a time
Service remains available during upgrade
Real-time hot swap (aka “VIP Swap”)
Virtual IP swap between staging & production
Swap service endpoints of old/new version
Enables complex architectural changes
Planned downtime
Stop and replace service with new version

Content Delivery Network
Better performance and user experience by caching Azure blobs at strategically placed locations
25 locations globally (United States, Europe, Asia, Australia and South America) and growing
Content Delivery Network
Edge Location
Edge Location
pic1.jpg
Edge Location
Windows Azure Blob Service
pic1.jpg

Multiple IIS Sites and Virtual Applications
SDK 1.3 uses full IIS and not Hosted Web Core
Add multiple IIS sites and Virtual applications per Web Role in the service definition file

Coming Soon!
Windows Azure Connect
Secure network connectivity between on-premises and cloud
Supports standard IP protocols
Example use cases:
Enterprise app migrated to Windows Azure that requires access to on-premise SQL Server
Windows Azure app domain-joined to corporate Active Directory
Roadmap
CTP requires on-premises agent for non-Windows Azure resources
Connectivity using existing on-premises VPN devices
Windows Azure
Enterprise

Virtual Machine Role
Coming Soon!
VM Role provides additional control and flexibility on the Windows Azure environment, and makes it easy to run existing Windows applications on Windows Azure.
Developers have full control over the OS image
Ability to upload your own customized WS08R2 Enterprise images
Operators can reboot, reimage and Remote Desktop
Continue to benefit from automated service management, including service model enhancements described on subsequent slides

SQL Azure

SQL Azure
Extending SQL Server to the Cloud
…
Sync Service
Database
SQL Azure Database
Familiar SQL Server relational database model
Support for existing APIs & tools
Built for the cloud with high availability & fault tolerance
Easily provision and manage databases across multiple datacenters
Data Sync Service
Provides two-way sync of SQL Azure Databases across datacenters
Example service available in the SQL Azure Labs environment

SQL Azure Database Service
SQL Azure provides logical SQL Server
Gateway server that understands TDS protocol
Looks like SQL Server to TDS Client
Actual data stored on multiple backend data nodes
Logical optimisations supported
Indexes, Query plans etc..
Physical optimisations not supported
File Groups, Partitions etc…
Transparently manages physical storage

Working with SQL Azure Databases
Your App
SQL Azure
TDS
Change Connection String

Behind the Scenes of SQL Azure
Apps use standard SQL client libraries: ODBC, ADO.Net, PHP, …
Application
Internet
Load balancer forwards ‘sticky’ sessions to TDS protocol tier
TDS (tcp)
LB
Security Boundary
TDS (tcp)
Gateway
Gateway
Gateway
Gateway
Gateway
Gateway
Gateway: TDS protocol gateway, enforces AUTHN/AUTHZ policy; proxy to backend SQL
TDS (tcp)
SQL
SQL
SQL
SQL
SQL
SQL
Scalability and Availability: Fabric, Failover, Replication, and Load balancing

Application Topologies
From Windows Azure
From Outside Microsoft Datacenter
From Windows Azure & Outside Microsoft Datacenter
SQL Server
App Code / Tools
App Code / Tools
Application / Browser
SQL Azure
Data Sync
Microsoft Datacenter
MicrosoftDatacenter
Microsoft Datacenter
Windows Azure
Windows Azure
SQL Azure
SQL Azure
SQL Azure
Code Near
Code Far
Hybrid

Connection Model
SQL Azure exposes native SQL Server TDS protocol
Use existing client libraries
ADO.NET, ODBC, PHP
Client libraries pre-installed in Windows Azure roles
Support for ASP.NET controls
Clients connect directly to a database
Cannot hop across DBs (no USE)

Connecting to SQL Azure
SQL Azure connection strings follow normal SQL syntax
Applications connect directly to a database
“Initial Catalog = <db>” in connection string
No support for context switching (no USE <db>)
Encryption security
Set Encrypt = True, only SSL connections are supported
TrustServerCertificate = False, avoid Man-In-The-Middle-Attack!
Format of username for authentication:
ADO.Net:Data Source=server.database.windows.net;User ID=user@server;Password=password;...
Setup your firewall rules first!

SQL Azure Compatibility
Currently Supported
Not Currently Supported
Tables, indexes and views
Stored Procedures
Triggers
Constraints
Table variables, session temp tables (#t)
Spatial types
Data Types
XML, HierarchyId, Sparse Columns, Filestream
Partitions
Full-text indexes
SQL-CLR
Tables require clustered indexes

Database Editions
You specify Web or Business Edition
Web: EDITION = web
Business: EDITION = business
You specify MAXSIZE
Web: MAXSIZE = 1GB | 5GB
Business: MAXSIZE = 10GB | 20GB | 30GB | 40GB | 50GB
This is the maximum size we will not let you grow beyond
You will only be charged for the actual peak size in any one day rounded up
For example, a 3.4 GB Web Edition will be charged 5GB rate.
CREATE DATABASE foo1 (EDITION='business', MAXSIZE=50GB);
CREATE DATABASE foo2 (EDITION='business', MAXSIZE=30GB);
ALTER DATABASE foo2 MODIFY (EDITION='web', MAXSIZE=5GB);
Business Edition
Up to 50 GB
10 GB increments
Web Edition
1 GB or 5 GB

Database Editions
Two SQL Azure Database SKUs: Web & Business
Web Edition:
1 GB @ £6.055/month
5 GB @ £30.275/month
Business Edition:
10 GB @ £60.604
20 GB @ £121.208
30 GB @ £131.812
40 GB @ £242.416
50 GB @ £303.20
Business Edition
Up to 50 GB
10 GB increments
Web Edition
1 GB or 5 GB

SQL Azure Data Sync
Powers movement of data
Cloud  cloud
On-premises cloud
Getting data where you need it
Sync SQL Azure instances
Sync SQL Server to SQL Azure
Sync offline apps to SQL Azure
Enable geo-replication of data
SQL Azure
Sync

SQL Azure Data Sync – Roadmap
SQL Azure Database
Now
Sync
Sync
Data Sync Service For SQL Azure
Remote Offices
Retail Stores
Sync
Sync
Sync
Sync
Sync
Coming Soon
On-Premises (Headquarters)

SQL Azure Reporting
CTP – you can register
Based on SQL Server Reporting Services 2008 R2
Exactly same report formats (no custom extensions yet)
Use BI Development Studio
Reports run on Windows Azure Platform
Report Viewer control using remote processing mode
Only reports against SQL Azure Database

SQL Azure Summary
SQL Azure Database
Hassle free fault tolerance with little to learn
SQL Azure Data Sync
Helping build geographically disperse or hybrid applications
SQL Azure Reporting
Reporting Services in the Cloud

Windows Azure Marketplace DataMarket(formerly Codename “Dallas”)

Easily Discover And Explore Datasets

DataMarket Data Partners
Public Domain
Premium
Leading Commercial and Public Domain Data; Free and Paid Content
Data residing in our cloud, 3rd party clouds, or private data centers
All data – web services, media, relational databases, higher level services

Discovery, Exploration and Acquisition of Information
Find
Try
Use
Browse / Search the Marketplace directly and from partner apps
Discovery from Excel and PowerPivotviews; Word, SharePoint
ALL data: Web services, media, relational data
Both Public and Premium
Any platform and any application
Explore sample data visually through apps and previews; content visualizations
Proxy classes for developers; native Visual Studio integration; REST APIs
Trial subscriptions
Use in Office, VS, and in ecosystem enabled solutions!
Unified API, billing, and security model
Free public domain data from around the world
Trusted commercial data and services
Subscriptions and Transactions to support broad usage scenarios

DataMarket Architecture at a glance…

DataMarket ISV Momentum

Crime from two perspectives
http://apps.facebook.com/crimestats
http://silverlight.onterrasys.com/CrimeDemo/

Extending .NET to the cloud with Internet Scale Utility Services
Access Control
…
Service Bus
Collection of building block services
Composed to provide foundational pieces for your apps
Exposed through open protocols
Accessible from anywhere
Service Bus
General purpose application bus & connectivity service
Access Control
Rules-driven, claims-based access control service

Enterprise Service Bus Pattern

AppFabric Service Bus
Text
XML
Graphics
Binary Data
Streaming
Receive
Receive
Firewall
Send
Send
Exchange messages between loosely coupled, composite applications.
Direct Connection facilitated by Service Bus if that is best connection mechanism.
Application #1
Application #2

AppFabric Access Control Service
Simplify and automate complex authorization schema requests.
Provide abstraction for federated claims-based authentication.
Easily establish secure trust relationship.
Applications or Users
Data and Applications

Windows Azure AppFabric Caching
A distributed, in-memory cache for applications running in Windows Azure
In-memory cache located near your Windows Azure applications
Simple administration
Based off the proven Windows Server AppFabric Caching capabilities
Benefits
Highly scalable caching solution with low latency and high throughput
Can dynamically increase and decrease as needed
End-user doesn’t have to bother with configuration, deployment, or management of their cache
Commercial launch in the first half of 2011

Commercials

Windows Azure Platform Consumption Prices
Pay as you go and grow for only what you use when you use it
Elastic, scalable, secure, & highly available automated service platform
Highly available, scalable, and self managed distributed database service
$9.99/month(scale up to 5 GB)
Compute
Web Edition
Per service hour
Per database/month
$0.12/hour
+ Variable Instance Sizes
Windows Azure platform AppFabric Service Bus & Access Control
Scalable, automated, highly available services for secure connectivity
Business Edition
Storage
Access Control
Service Bus
$99.99/month(scale up to 50 GB)
$3.99/connection
Per GB stored & transactions
Per database/month
$1.99/100k Message Operations
Per Message Operation
Per Connection
$0.15 GB/month
$0.01/10K transactions
Prices shown in USD only
International prices are available

Windows Azure Virtual Machine Instances
X-Large (XL)
Large (L)
Medium (M)
Small (S)
X-Small (XS)
$0.96
$0.48
$0.24
$0.12
$0.05
Per service hour
Per service hour
Per service hour
Per service hour
Per service hour
Unit of Compute Defined
[ Equivalent compute capacity of a 1.6GHz 64-bit processor ]
X-Large
Large
Medium
Small
Extra Small
8 x 1.6GHz
4 x 1.6GHz
2 x 1.6GHz
1 x 1.6GHz
1 x 1.0GHz
(high I/O)
(high I/O)
(high I/O)
(moderate I/O)
(low I/O)
14.0 GB memory
7.0 GB memory
3.5 GB memory
1.75 GB memory
768 MB memory
2000 GB
(transient storage)
1000 GB storage
(transient storage)
500 GB storage
(transient storage)
225 GB storage
(transient storage)
20 GB storage
(transient storage)

Extra-Small VM Instance
Born from many requests for a low-cost VM instance
XS lowers the barrier of entry to Windows Azure
XS VM offers a hosting environment that is appropriate for:
Web roles that have very low traffic or short bursts of processing capability
Worker roles that require little CPU processing power with low memory consumption
Prototyping of a Windows Azure service
Demoing how Windows Azure works
Roles that wake up and check status periodically
XS VM shares resources with other XS VM on the same node

Windows Azure Platform Data Transfer
Priced per GB transferred/month (prices shown in USD)
North America Region
Asia Pacific Region
Europe Region
$0.10 GB Ingress
$0.15 GB Egress
$0.10 GB Ingress
$0.15 GB Egress
$0.30 GB Ingress
$0.45 GB Egress
N. Europe
Sub-region
N. Central – US
Sub-region
E. Asia
Sub-region
W. Europe
Sub-region
S. Central - US
Sub-region
S.E. Asia
Sub-region
No Charge For Off Peak Ingress Promotion (ends 31/10/10)
On-board to Windows Azure platform at no charge
Off peak times defined as: 10pm-6am Mon-Fri & from 10pm-Fri to 6am-Mon for weekends in each designated regional time zones below
Europe
WET = UTC
North America
PST = UTC-8
Asia Pacific
SST = UTC+8

Monthly Service Level Agreement
Compute
connectivity
Service bus & access control availability
Instance monitoring & restart
Database
availability
Storage
availability
Service bus and access control endpoints will have external connectivity
Message operation requests processed successfully
Storage service will be available/reachable (connectivity)
Your storage requests will be processed successfully
Database is connected to the internet gateway
All databases will be continuously monitored
All running roles will be continuously monitored
If role is not running, we will detect and initiate corrective state
Your service is connected and reachable via web. Internet facing roles will have external connectivity
>99.9%
>99.9%
>99.9%
>99.9%
>99.95%

UK Azure Pricing – Standard Rates
AppFabric
Access Control
£1.2062 per 100,000 transactions*
Service Bus
£2.4184 per connection on a “pay-as-you-go” basis*
Pack of 5 connections £6.0307*
Data Transfers
North America and Europe regions
£0.0607 per GB in
£0.091 per GB out
Asia Pacific Region
£0.1819 per GB in
£0.2728 per GB out
Inbound data transfers during off-peak times through June 30, 2010 are at no charge. Prices revert to our normal inbound data transfer rates after June 30, 2010
Windows Azure
Compute
Small instance (default): £0.0728 per hour
Medium instance: £0.1455 per hour
Large instance: £0.291 per hour
Extra large instance: £0.5819 per hour
Storage
£0.091 per GB stored per month
£0.0061 per 10,000 storage transactions
Content Delivery Network (CDN)
£0.09 GB CDN Egress
£0.06/100K CDN Storage X-actions
SQL Azure
Web Edition – Up to 1 GB relational database
£6.055 per database per month
Business Edition – Up to 10 GB relational database
£60.604 per database per month
£100 per month* - Highly Available 2 x Instance Web Application + 0.5TB data
£6 per month* - Highly Available 1Gb SQL Server database
* Lots of assumptions and caveats

© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Understanding the Windows Azure Platform - Dec 2010

by DavidGristwood on Dec 15, 2010

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Understanding the Windows Azure Platform - Dec 2010 — Presentation Transcript