CIS 527

Lab 5 - Scaling & High Availability

Image Source: Nati Shalom on Stack Overflow

Scaling

• Horizontal - Add More Droplets & Load Balancer
• Vertical - Resize Droplet; Requires Downtime or Existing Infrastructure

Horizontal Scaling

Image Source: DigitalOcean

AWS Auto Scaling

Image Source: Amazon Web Services

High Availability

Image Source: DigitalOcean

Case Study

Image Source: Netflix

Image Source: Netflix

Image Source: Netflix Tech Blog

Image Source: Netflix Tech Blog

Image Source: Netflix Tech Blog

Image Source: High Scalability

Image Source: Brooks Canavesi

Image Source: Netflix Tech Blog

Cloud Design Considerations

• Scale Up or Scale Out?
• Build Capacity Predictively or Reactively?
• Design for High Availability?
• Plan for Failures and Outages
• Test Failover Procedures