MultiCloud Classroom notes 28/Oct/2025

Cloud Operations

Scenario

• We are using (AWS|Azure) Cloud and running our ecommerce application
• Deployment of the application is done from CI/CD Pipelines.
• As you customers are using applications we need to perform lot of backend activities
  • Backups and Recovery
  • High Availability
  • Patching
  • Monitoring
    • Application
    • Infra
    • Network
  • Security
    • SSL Certificates
    • Encryptions
    • Key Managment
    • Firewalls
  • Troubleshooting

Ops Terminology

• MTTF (Mean Time To Fail)
• MTTR (Mean Time To Recover)
• MTBF (Mean Time Between Failures)
• SLA (Service Level Agreement)

Hypervisor

• Hypervisors can be used to create virtual machines as they can create virtual hardware resources such as cpu, RAM, disk, nic
  
• Hypervisors are of two types
  • type 1 hypervisor: This is installed on physical server which creates vms
    • Example: Vmware ESxi
  • type 2 hypervisor: This is installed on OS and can create virtual machines
    • Examples:
      • WSL (Hyperv)
      • VMWare Workstation
      • Virutal Box