133 lines
3.5 KiB
Markdown
133 lines
3.5 KiB
Markdown
# The economics of cloud computing
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## Cloud Computing Service Model (Not important)
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### Service oriented Technology
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- Properties
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- Logical view: abstraction of actual processes
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- Message orientation: uses message to communicate
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- Description orientation: described by machine executable metadata
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- Granularity: use small operation, in order to perform complex tasks
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- Network orientation: offered through networks
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- Platform neutrality: standardized format
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- Examples: SaaS, PaaS, IaaS
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### Objectives:
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- Shift computing, thus management and maintainence
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- High QoS
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- Transparent, and generic standards to boost acceptability
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## Economic models
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### Traditional cost model
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- Upfront capital costs (CAPEX, capital expenditure): money spent at the
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beginning of business to get the equipment
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- Variable cost (OPEX, Operational expenditure): operational cost
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- Calculation:
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- Upfront capital costs + Variable costs
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### Cloud cost model
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- Calculation
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- Variable costs (no upfront cost)
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- Traditional IT cost minus the upfront capital costs (This sounds stupid
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and absurd, I hope the profs are not going to make a quiz on this)
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- Optimizing
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- AWS Trusted Advisor: online service, that helps suggesting ways to
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optimize costs
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- Calculators:
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- TCO: Total cost of ownership calculator, estimate the cost savings
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when using AWS, compared to traditional IT systems
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- Simple Monthly Calculator: estimate your AWS monthly bills, based on
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business requirements
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### Examples
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- Amazon cloud options:
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- Reserved:
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- Reserved capacity: reserve for 1 to 3 years to get discount
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- Reserved instances:
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- All-Upfront RI: Pay everything at once to get huge discount
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- Partial-Upfront RI: Pay part of the amount and get less savings
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- No-Upfront RI: Pay nothing upfront, little saving
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- On-demand instance: Pay as you go
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- Dedicated instance: run on physical server
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- Free: 12 months of free EC2
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### Motivation for both parties
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#### Subscribers:
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- Cost savings
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- Power
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- Support, Maintainence
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- Software licenses
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- Increased profit
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- Fancy words
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- Innovation
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- Productivity
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- Competitive advantage
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- Elastic
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- Development experience
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- Automation
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- Reliability
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- Scalability
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#### Providers
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- Shared resource, no waste
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- Location independent
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- Variety of customers that can serve
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## Competition
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- Offerings
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- Free and educational
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- Reserved
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- Novelties: glacier file storage
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- Assurance
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- Risk mitigation
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- Reputation
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- Size
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## All kinds of models
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### Service delivery
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- Definition: pre-packaged combination of IT resources, offered by cloud
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provider as service
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- Examples: [previous slide](/1-1-intro.md#cloud-service-models)
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### Deployment
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- Private cloud: on premises cloud
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- Public cloud
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- Community cloud: infra is shared between several organizations
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- Hybrid cloud: public cloud with a private cloud, or on-premises data center
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## Challenges and opportunities:
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### Challenges
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- Demand on features and support
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- [Competition](#competition)
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- [QoS](/1-2-sla-virtualization.md#qos)
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- [SLA](/1-2-sla-virtualization.md#sla)
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### Opportunities
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- Jobs:
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- AWS Cloud Practitioner
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- AWS Solution Architect
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- AWS Developer
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- AWS DevOps Engineer
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- AWS SysOps Administrator
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- AWS Security Expert
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- AWS Big Data Expert
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- AWS Networking Expert
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- AWS Data Engineer
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- AWS Data Scientist
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