Question

Difficulty: MediumCreate and Configure Virtual Machines

Your company is deploying a high-performance database server on an Azure virtual machine named VM1 in the East US region. The database workload requires sub-millisecond storage latency and up to 50,00050,000 IOPS. You plan to attach an Ultra Disk managed disk to VM1 to meet these requirements. Which configuration is required during the creation of VM1 to ensure you can attach an Ultra Disk to the virtual machine?

  1. A
    Deploy VM1 into an Availability Set to support Ultra Disk redundancy.
  2. B
    Configure a storage account firewall rule to bypass trusted Microsoft services.
  3. Enable the Ultra Disk compatibility setting on VM1 during deployment.Answer
  4. D
    Apply a ReadOnly resource lock to the target Resource Group before initiating the virtual machine deployment.

Answer

Enable the Ultra Disk compatibility setting on VM1 during deployment.
To use Ultra Disks on an Azure virtual machine, you must explicitly enable the Ultra Disk compatibility setting (or the ultraSSDEnabled capability) during the VM creation process. This informs the Azure fabric to allocate the virtual machine on a host that supports the Ultra Disk storage subsystem.

Step-by-Step Solution

1
Select a supported VM size and region for the virtual machine deployment.
VM size and region are selected.
Ultra Disks are only supported in select regions and on specific VM sizes.
2
Enable the Ultra Disk compatibility capability on the virtual machine during configuration.
The additional capability is set to enabled (ultraSSDEnabled = true).
Azure requires this capability to be enabled on the host virtual machine before any Ultra Disks can be attached.
3
Create and attach the Ultra Disk to the virtual machine.
The high-performance Ultra Disk is attached to the VM.
Once the VM capability is enabled, the virtual machine can interface with the Ultra Disk storage subsystem.

Key Concept

Configuring Ultra Disk compatibility during Azure Virtual Machine creation
Estimated Time:1m 30s
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