Orphaned managed disks should be deleted

Low Azure General disk-managed-disks

Applies to

Microsoft.Compute/disks

What CGPulse checks

A resource passes this rule when isAttached must equal true. Anything else is reported as a finding with the evaluated property value attached as evidence.

How to fix it

Verify the orphaned resource is unused, then delete or reattach it to reduce costs and risk. In Azure Portal: Resource > Overview > verify usage status. See: https://learn.microsoft.com/en-us/azure/advisor/advisor-cost-recommendations

Careful: Permanently deletes the disk. Verify it is truly unused and not a backup before proceeding

CLI

az disk delete --ids "{id}" --yes

Terraform

# Remove orphaned managed disk from Terraform state
# terraform state rm azurerm_managed_disk.orphaned
# Or delete via CLI: az disk delete --ids "{id}" --yes

Compliance frameworks

Vendor documentation

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