Question
Your company has an Azure subscription.
You need to deploy a number of Azure virtual machines (VMs) using Azure Resource Manager (ARM) templates. You have been informed that the VMs will be included in a single availability set.
You are required to make sure that the ARM template you configure allows for as many VMs as possible to remain accessible in the event of fabric failure or maintenance.
Which of the following is the value that you should configure for the platformFaultDomainCount property?
- A. 10
- B. 30
- C. Min Value
- D. Max Value Correct
Explanation
To keep as many VMs as possible available during a fabric (hardware/rack) failure or maintenance, spread them over as many fault domains as the region allows, so set platformFaultDomainCount to the maximum value. The maximum is region-dependent (3 in most regions, 2 in some), so specifying the maximum gives the widest distribution across racks, power sources and network switches.
