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My presentation from WebDU 2011
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One Big Pain in the *aaS
Tim Buntel
Cloud! Seriously?!
CLOUD
European Network and Information Security Agency
“Cloud computing is a new way of delivering computing resources, not a new technology.”
1• On-demand self-service
2• Broad Network Access
3• Resource Pooling
4• Rapid Elasticity
5• Measured Service (Utility Model)
US Government’s National Institute of Standards and Technology (NIST) definition of cloud computing
5 Essential Characteristics
Fast set-up!
CAPEX to OPEX
Anywhere, anytime!
Resilient!
Efficient for growth!
On
-P
rem
ises
IaaS
PaaS
SaaS
IaaS
• User Experience
• Data• OS (Image)
• VM
• Computation• Storage• Scaling
IaaS
IBM
Fujitsu
IaaS
“Private Cloud”
Paa
S
• User Experience
• Data
• Computation• Storage• Connectivity• Scaling• Synchronisation• Etc.
Paa
SElastic Beanstalk
Google App Engine
The Vendor Landscape
SaaS
IaaS
PaaS
(Best Suited) Workload Patterns
Usage
Co
mp
ute
Time
Average
Inactivity
Period
“On and Off “
Co
mp
ute
Time
“Unpredictable Bursting“
Average Usage
Average UsageCo
mp
ute
Time
“Growing Fast“
Co
mp
ute
Time
Average Usage
“Predictable Bursting“
On & Off Pattern Example
ESSA Science Test
• 600 schools
• 100 MB of video & animations
• 90 minutes duration
• Two-way critical transactions
80,000 students
answer100 questions
during 1 day
Peaks at approximately
6,000Transactions per second
http://bit.ly/i0LsLw
On & Off Pattern Example
http://bit.ly/i0LsLw
“Traditional” Cloud
• 10 SQL servers • 30 IIS servers• 3 months
• Development• 5 small instances• 3 months• $5,400
• Testing• 500 small instances• 200 hours• $12,000
• Delivery• 500 small instances• 10 hours• $600
$180K
$18K
Unpredictable Burst Example
HKeIPO
• IPOs in Hong Kong
• Seasonal, unpredictable
• High Hardware and Bandwidth costs
http://bit.ly/ehfciI
500K Visits
1.5M Page Hits
7-10 days
Most hits coming
First Hour
Sooooo Scary!
1.But, where’s my data?2.It’s going to put us out of
a job!3.Won’t it be slow?4.What about all the
servers we just bought?!
Security
“The data centres house critical government data used in coordinating a State Emergency Service response to the flood and will likely be the last building in its immediate area to have its power cut by Energex.”
Global Foundation Services
Quincy Singapore Hong Kong Dublin
4 of the 10 biggest DC’s in the world Common global platform for consumer and commercial $B’s investment
2 Football FieldsDatacentre
17 Railway
Wagons
IT Control
• “Rogue IT”• Not just “Keeping on the
Lights”• Move from management
to business • New opportunities around
Integration
• Architecture• Latency plan• Data storage and retrieval• Authentication• Hybrid with on-prems
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