17. Cloud computing, often referred to as simply “the
cloud,” is the delivery of on-demand computing
resources—everything from applications to data
centers—over the internet on a pay-for-use basis.
• Elastic resources—Scale up or down quickly
and easily to meet demand
• Metered service—so you only pay for what
you use
• Self service—All the IT resources you need
with self-service access
The Cloud
https://www.ibm.com/cloud-computing/learn-more/what-is-cloud-computing/
18. • Traditional IT Infrastructure is
• Capex-Heavy
• Time-Intensive
• Resource-Intensive
• Inefficient
• Stagnant / dated
• Not Agile Enough
Why Cloud?
19. • Infrastructure As A Service (IaaS)
• Computing, Networking, Storage
• Platform As A Service (PaaS)
• Development Environment
• Software As A Service (SaaS)
• Business Applications
Delivery Models
20.
21. • Depending on who you are
and what you do, there could
be several migration scenarios
• While technology is important,
even more important to
understand business context
• Let’s see some examples…
Cloud Migration
22. • Drivers:
• Stagnant Business with Perpetual Licensing
• Raising Prices Was’t Sustainable Approach
• 18-25month Release Cycles
• Low Recurring Revenue 19% (2011)
• Approach:
• 2012: Started Offering Both
• 2013: Only Add Features to Subscription
• Agile Model Of Development
• Changes in Sales Process, Compensation, etc.
• Communication Internally, Wall St
• Move from ARPU to ARR
• Once Downloaded, Cloud is only for Update and Storage, But No
Processing
• Business Impact:
• Stock Price 3x
• Double-Digit Revenue Growth, More Predictable Revenue Stream
• Recurring Revenue up to 70%
Adobe
http://www.mckinsey.com/business-functions/digital-mckinsey/our-insights/reborn-in-the-cloud
23. • Drivers:
• Problems with on-prem infra
• Tough to keep pace with digital demands /
innovate
• Approach
• Start small, quick wins, demonstrate benefits
• 2015: From zero cloud usage to BAU in just
8months
• Results
• 3,500 GBP / 3mon => 66 GBP a month / 1wk
• Cost of hosting a page 13p/month
TESCO Bank
24. • Drivers:
• Big enough to have own
infra!
• Perhaps move from SaaS
to PaaS???
• 2016: Moved 90% of files
from Amazon to own cloud
Dropbox
25. • Drivers:
• Old, outdated systems
• Approach:
• 2014: Moved 65 apps and NASA.gov to
AWS cloud in 22wks with no downtime
• Results:
• Web update from 20min => 2min
• CPU utilisation only 1% even at peak
levels, resulting in 25-30% cost savings
• Able to avoid data silos
NASA
26. • Why: The Purpose
• What: The Goal
• How: The Plan
Migration Strategy
27. • Why are you undertaking
migration to cloud?
• Cost Reduction?
• New Markets?
• Faster Innovation?
• …
• Build a Business Case
Why: The Purpose
28. • Security 93%
• Performance 85%
• Scalability 74%
• Support 65%
Top Considerations
29. • What would the success
look like?
• Capex DOWN 60%
• Headcount DOWN 40%
• Release UP 1000%
• …
• Establish Success Criteria
What: The Goal
30.
31. • How would the migration be
performed?
• Public / Private / Hybrid Cloud?
• IaaS / Paas/ Saas?
• Cloud Provider / Own DC?
• Rearchitecture apps?
• …
• Plan migration strategy and execute
How: The Plan
36. • Consumption Based
• Subscription Based
• Advertising Based
• Market-Based
• Value-based
• …
Pricing Models
37. • Pay What You Consume,
And As You Go
• Ex: Disk, CPU, Network
Traffic
• Common for IaaS
Consumption Based
38.
39.
40.
41. • Pay for Time, Irrespective
of Usage
• Common For SaaS
Subscription Based
42.
43. • Free or Low-Priced But
Must Accept Ads
Advertising Based
44. • Fluctuates Based on
Demand / Supply
• You can Buy on Current
Price and Use Rightaway, Or
• Bid for Lower Price and If
Market Reaches That Price,
You Get It
Market Based
45.
46.
47.
48. • Cloud is Business: It’s not just about
IT infrastructure but the TCO of
Business!
• Identify the key drivers: why are you
migrating to cloud?
• Establish the success criteria: what
will success look like?
• Evaluate your migration strategy:
your context is unique to you!
Recap
49. • IaaS vs. PaaS vs. SaaS, https://youtu.be/KgL3BfAc9Cs
• The Present And Future Of Cloud Pricing Models, https://www.ibm.com/
blogs/cloud-computing/2013/06/present-future-cloud-pricing-models/
• Cloud Computing Pricing Models: A Survey, http://www.sersc.org/
journals/IJGDC/vol6_no5/9.pdf
• https://www.engadget.com/2013/05/09/adobe-creative-or-cloudy/
• http://nvlpubs.nist.gov/nistpubs/Legacy/SP/
nistspecialpublication800-145.pdf
• http://www.computerworlduk.com/cloud-computing/how-tesco-bank-has-
adopted-aws-cloud-as-business-as-usual-in-eight-months-3629767/
• https://www.wired.com/2016/03/epic-story-dropboxs-exodus-amazon-
cloud-empire/
• https://www.g2techgroup.com/nasa-migrates-to-aws-cloud/
• https://aws.amazon.com/solutions/case-studies/all/
References