On-premise versus the Cloud

(OBJ 3.1)

Cloud Computing

• Delivery of computing services over the internet, including servers, storage, databases, networking, software, analytics, and intelligence
• Advantages
  • Faster innovation
  • Flexible resources
  • Economies of scale
• Example:
  • Netflix leverages Cloud computing to stream content worldwide

Responsibility Matrix

• Outlines the division of responsibilities between the cloud service provider and the customer
• Example:
  • In an IaaS model, the provider is responsible for managing the infrastructure while the customer handles everything else including:
    • OS
    • Middleware
    • Runtime
    • Data
    • Application

Third-Party Vendors

• Provides specialized services to enhance functionality, security, and efficiency of cloud solutions
• Range from cloud management tools, security solutions to data analytic tools.

Hybrid Solutions

• Combined on-premise, private cloud, and public cloud services, allowing workload flexibility depending on needs
• Considerations
  • Sensitive data is protected (data security)
  • Regulatory requirements are met (compliance)
  • Systems can communicate with each other (interoperability)
  • The solution is cost-effectiveness (cost)

On-Premise Solutions

• Computing infrastructure physically located on-site at a business
• The business is responsible for maintaining the hardware, software, and other resources.
• Example:
  • A business prefers full management of inside data
• Sensitive information is not exposed to third-party vendors or other potential breaches associated with cloud solution.
• Provides immediate access and control over data
• More work to maintain

Key Considerations in Cloud Computing

• Availability
  • System's ability to be accessed when needed
  • "Check for the number of 9s of availability"
  • Check if it accounts for possible disruptions
• Resilience
  • System's ability to recover from failures and continue to function
  • Check distributed redundant infrastructure
  • Example: Google Cloud
• Cost
  • Consider both upfront (immediate) and long-term costs
  • As usage grows, so do cost
• Responsiveness
  • Speed at which the system can adapt to changes in demand
  • Check for auto-scaling features to provide smooth customer experience
• Scalability
  • System's ability to handle increased workloads
  • Be able to handle peak service times
• Ease of Deployment
  • Cloud services are easier to set up than on-premise solutions
  • No need of technical expertise or physical service
• Risk Transference
  • Some risks are transferred to the provider, but customers are responsible for security
• Ease of Recovery
  • Cloud services offer easy data recovery and backup solutions
  • Check prevention from data loss
• Patch Availability
  • Providers release patches for vulnerabilities automatically
  • Patch and Update regularity
• Inability to Patch
  • Compatibility issues or lack of control can hinder patching
  • Business using legacy applications on the cloud
• Power
  • Cloud provider manages infrastructure, including power supply
  • Reduces customer costs and eliminates power management concerns
• Compute
  • Refers to computational resources, including CPUs, memory, and storage that a customer can use
  • Cloud providers offer various compute options to suit different needs
  • Example:
    • AWS offers from small, low-cost to high-performance solutions

Remember

• Cloud computing offers flexibility, scalability, and cost-effectiveness
• On-premise solutions provide control and security but can be expensive and challenging to maintain
• Hybrid solutions offer flexibility and control but require considerations of security, compliance, interoperability, and cost