OS disks using Standard HDD — migrate before Sep 8, 2028

AzureDeprecations & retirementsTeam planSeverity: mediumazure.disk

Azure Managed Disks using Standard HDD as OS disks require migration to Standard SSD or Premium SSD before September 8, 2028

What LeftSize checks

Detect Azure Managed Disks using Standard HDD (Standard_LRS) as OS disks.

Why it matters

Missed retirement and end-of-support dates turn into forced upgrades, outages or extended support charges at a moment you did not choose.

What you get in the GitHub issue

LeftSize runs this check from a scheduled GitHub Action with a read-only identity in your Azure account and opens one issue per scope, updated on every scan. The issue includes:

  • The affected resources, grouped per subscription, resource group or account and region
  • Background on why it was flagged and when it is a false positive
  • Step-by-step remediation with safety checks
  • Cost and operational impact of fixing it
  • Ready-to-run fix scripts (CLI, PowerShell or Terraform where available)
  • Alternative approaches and their trade-offs
  • Snooze, ignore or report a finding with a comment on the issue
Install LeftSizeIncluded in the Team and Business plans.

Official references