Download - Cloud Computing Soup To Nuts
Cloud ComputingSoup To Nuts
http://twitter.com/jdrumgoolehttp://joedrumgoole.com/blog
Cloud Computing : Definition
• Virtualised Infrastructure
• Pay as You Use Billing
• Unbounded access to Resources
• Scale down as easily as you scale up
Virtualised Infrastructure
VCPU VCPU VCPU VCPU VCPU VCPU VCPU VCPU
Real CPU Real CPU
SharedDisk
SharedDisk
SharedDisk
SharedDisk
Pay as You Use Billing
Unbounded Access To Resources
Scale Down as Easily as you Scale Up
Isn't it Just like...
Mainframes Time Sharing
Web Hosting
Co-location
1m up front fee
Your process can ruin my day
Limited to websites
Can't scale down
Software as a Service vs Cloud Computing
SaaS End user service
Branded
Billing per user
Often Free
Cloud
Needs programmers
Unbranded
Billing by resource usage
Pay to Play
Why Now?
• Cost of Storage : 1TB, 88 Euros• Multi-core Chipsets/Multi-chip motherboards• Cheap virtualisation software (Xen)• Intel/Linux hegemony• Broadband everywhere• 10 years knowledge of building scalable
software• Excellent Open Source Software (LAMP, Rails,
Django, Danga)
The Players
• Amazon– Storage, Compute, Queuing, Entity Store, EBS, CDN
• Microsoft– Storage, Compute, Queuing, Entity Store
• Google– Storage, Compute (App Engine)
• GoGrid– Storage, Compute
• Mosso– Storage, Compute
• Nirvanix– Storage
Example Costs
• Unlimited storage @ $0.15 per GB/month
• Linux/Windows Instance @ $0.10/$0.125 per hour
• 365 * 24 * 0.10 = $876 per year
• Watch the per transaction costs!
• SmugMug saved over 1m dollars in y1
The Problem Areas
• The Data Problem
• The Britney Spears Problem
• The Programmer Problem
• The Doctor Problem
• The End User Problem
• The Failure Problem
An Example Grid
Load BalancerPerlBal
App Server
App Server
App Server
Task Server
Task Server
DatabaseServer
Blog/Static Web Site
S3
1800 Euros a Month including 2TB of storage
Summary
• Its Cheap
• Its flexible
• Its not a silver bullet
• Its enabling a whole new class of business
• The game starts when Azure launches
Q&A
