microsoft windows azure - cloud platforms today a comparison presentation
TRANSCRIPT
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Cloud Platforms Today:A ComparisonDavid ChappellChappell & AssociatesApril 2009
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Cloud PlatformsDefining categories
In the beginning:– Infrastructure as a Service (IaaS)
Example: Amazon Elastic Compute Cloud (EC2)– Platform as a Service (PaaS) Example:
Salesforce.com Force.com
Today:– The cloud platform world is more complex– The IaaS/PaaS dichotomy no longer makes much
sense
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Levels of FunctionalityWhich is IaaS? Which is PaaS?
Amazon Web Services EC2
Mosso Cloud Servers
Windows Azure CTP
Google AppEngine
Salesforce.com Force.com
Can create your own OS
installation
x
Application runs in a
visible VM
x
x
x
Have administrative access to VM
x
x
Can run application
code
x
x
x
x
x
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ScenariosAn alternative approach
A more meaningful way to compare cloud platforms today is by the application scenarios they support
I’ve chosen five representative application scenarios– There are plenty of other possibilities
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Cloud Platform Scenarios (1)
Running an on-premises app unchanged in the cloud– Example: An enterprise moving an on-premises line-
of-business app to the cloud Creating a moderately scalable Web app– Example: An enterprise building a custom
application used by its employees– Example: An ISV creating a moderately popular
consumer application
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Cloud Platform Scenarios (2)
Creating a very scalable Web application– Example: An ISV creating the next Facebook– Example: A large bank creating a customer-facing
app Creating a parallel processing application – Example: An enterprise using MapReduce to
process large amounts of data Creating a very scalable Web application with
background processing– Example: An ISV creating the next YouTube
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Cloud Platform ScenariosRunning an on-premises application unchanged
Physical or Virtual Machine(s)
Operating System DBMSOn-premises
Cloud
Virtual Machine(s)
Application
Operating System DBMS
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Cloud Platform ScenariosCreating a moderately scalable Web application
Web Application
Scale-out Web App Platform1
Users
On-premises
Cloud
1 Such as virtual machines running replicated Web servers2 Such as virtual machines running a relational DBMS
Relational Storage2
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Cloud Platform ScenariosCreating a very scalable Web application
Web Application
Scale-out Web App Platform Scale-out Storage
On-premises
Cloud
Users
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Examining Scale-Out StorageAn aside
Challenges:– An unfamiliar structure• Moving relational data to it takes work• Supporting services are scarce, e.g., reporting
– No SQL– No schema– Some platform lock-in• Because each vendor does it differently
Benefits– Massive scalability
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Cloud Platform ScenariosCreating a parallel processing application
Parallel Processing Application
User
Blob StorageScale-out Batch App Platform
On-premises
Cloud
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Cloud Platform ScenariosA scalable Web app with background processing
Blob Storage
Scale-out Batch Platform
Scale-out Web Platform
Scale-out Storage
Queues
Scalable Web Application with Background Processing
On-premises
Cloud
Users
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Scenarios vs. Platform Capabilities
Scale-out web app platform
Scale-out storage
Scale-out batch app platform
Queues
Relational storage
VM with standard OS
Blob storage
Create Moderately
Scalable Web Apps
x
x
Create Very Scalable Web
Apps
x
x
Create Parallel Processing
Apps
x
x
Create Very Scalable Web
Apps with Background Processing
x
x
x
x
x
Run On-Premises Apps
x
x
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GoGrid, Mosso, Flexiscale, OthersTypical scenarios
Scale-out web app platform
Scale-out storage
Scale-out batch app platform
Queues
Relational storage
Run On-Premises Apps
VM with standard OS
Create Very Scalable Web
Apps
Create Very Scalable Web
Apps with Background Processing
Blob storage
Create Parallel Processing
Apps
Create Moderately
Scalable Web Apps
VMs
VMs (w/RDBMS)
VMs
VMs (w/RDBMS)
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Amazon Web ServicesTypical scenarios
Scale-out web app platform
Scale-out storage
Scale-out batch app platform
Queues
Relational storage
Run On-Premises Apps
VM with standard OS
Create Very Scalable Web
Apps
Create Very Scalable Web
Apps with Background Processing
Blob storage
Create Parallel Processing
Apps
Create Moderately
Scalable Web Apps
EC2 VMs
EC2 VMs (w/RDBMS)
EC2 VMs
EC2 VMs (w/RDBMS)
EC2 VMs
SimpleDB
EC2 VMs , Elastic MapReduce
Simple Storage Service (S3)
EC2 VMs
EC2 VMs
S3
SimpleDB
Simple Queue Service (SQS)
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Windows Azure CTPTypical scenarios
Scale-out web app platform
Scale-out storage
Scale-out batch app platform
Queues
Relational storage
Run On-Premises Apps
VM with standard OS
Create Very Scalable Web
Apps
Create Very Scalable Web
Apps with Background Processing
Blob storage
Create Parallel Processing
Apps
Create Moderately
Scalable Web Apps
Web role
SQL Data Services
Web role
Tables
Worker role
Blobs
Web role
Worker role
Blobs
Tables
Queues
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SQL Data Services (SDS)An aside
Provides relational storage in the cloud– A distinct service (not part of Windows Azure)– Built on Microsoft SQL Server technology
Can be used by applications running in the cloud or on-premises
Database
SQL Data Services
Database
Application
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Google AppEngineTypical scenarios
Scale-out web app platform
Scale-out storage
Scale-out batch app platform
Queues
Relational storage
Run On-Premises Apps
VM with standard OS
Create Very Scalable Web
Apps
Create Very Scalable Web
Apps with Background Processing
Blob storage
Create Parallel Processing
Apps
Create Moderately
Scalable Web Apps
Java/Python runtime
Datastore
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Salesforce.com Force.comTypical scenarios
Scale-out web app platform
Scale-out storage
Scale-out batch app platform
Queues
Relational storage
Run On-Premises Apps
VM with standard OS
Create Very Scalable Web
Apps
Create Very Scalable Web
Apps with Background Processing
Blob storage
Create Parallel Processing
Apps
Create Moderately
Scalable Web Apps
Force.com runtime
Force.comstorage
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Comparing AppEngine and Force.comTwo different approaches AppEngine provides a Java or Python
environment for building Web apps– Apps are built by developers
Force.com provides a platform for creating data-oriented business applications with browser interfaces– Apps can be built by less technical people– Apps can also be built by developers• Using Apex Code
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Comparing Cloud PlatformsSummarizing typical scenarios
Run On-Premises Apps
Create Very Scalable Web
Apps
Create Very Scalable Web
Apps with Background Processing
Create Parallel Processing
Apps
Create Moderately
Scalable Web Apps
GoGrid, Mosso, Flexiscale, etc. xxAmazon Web
Services x x x x xWindows Azure
CTP x x x xGoogle
AppEngine xSalesforce.com
Force.com x
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Cloud Platform Lock-inInteroperability
Questions:– How easy is it to expose my cloud platform app’s
services to other apps?– How easy is it to access my cloud platform app’s
data from other apps? The situation today is quite good:– Cloud platform apps can expose and consume
Web services– Cloud platform app data can be accessed by
external apps
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Cloud Platform Lock-inPortability
Questions:– How easy is it to move my cloud platform code
back on-premises or to another cloud platform?– How easy is it to move my cloud platform data
back on-premises or to another cloud platform?
The situation today varies with different cloud platforms– And different options within those platforms
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Cloud Platform Lock-inEstimating relative portability for code and data
Work required to port code to
on-premises platform
Work required to port data to on-premises platform
EC2/GoGrid/etc. with standard DBMS
EC2 with SimpleDB
Windows Azure with SDS
Windows Azure with Tables
AppEngine
Force.com
EC2 with standard DBMS and SQS
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About the Speaker
David Chappell is Principal of Chappell & Associates (www.davidchappell.com) in San Francisco, California. Through his speaking, writing, and consulting, he helps people around the world understand, use, and make better decisions about new technology. David has been the keynote speaker for many events and conferences on five continents, and his seminars have been attended by tens of thousands of IT decision makers, architects, and developers in forty countries. His books have been published in a dozen languages and used regularly in courses at MIT, ETH Zurich, and other universities. In his consulting practice, he has helped clients such as Hewlett-Packard, IBM, Microsoft, Stanford University, and Target Corporation adopt new technologies, market new products, train their sales staffs, and create business plans. Earlier in his career, David wrote networking software, chaired a U.S. national standards working group, and played keyboards with the Peabody-award-winning Children’s Radio Theater. He holds a B.S. in Economics and an M.S. in Computer Science, both from the University of Wisconsin-Madison.
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Copyright © 2009 David ChappellChappell & Associates
www.davidchappell.com
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