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Chapter 9 - Azure Virtual Machines
Chapter 9.4 - Configuring Virtual Machine Availability and Scale Sets (Part 1)

AZ-104 Certification Notes

Chapter 9.4 - Configuring Virtual Machine Availability and Scale Sets (Part 1)

Virtual Machine Availability Sets

  • Purpose of Availability Sets
    • Protect redundant VMs
    • Protect against underlying host failures
    • Prevent outages due to maintenance
  • Fault Domain (FD)
    • Underlying host failure, such as power or network outages. (Max FD: 3)
  • Update Domain (UD)
    • Logical grouping of infrastructure for maintenance/updates. (Max UD: 20)
Chapter 9.3 - Managing Virtual Machine DisksChapter 9.5 - Configuring Virtual Machine Availability and Scale Sets (Part 2)