Disk Snapshots Exceeds Target Threshold

This recommendation identifies when the cost of GCP Compute Engine disk snapshots exceeds 5% of the total Compute Engine disk storage costs. This may indicate that there are an excessive number of snapshots.

Consider the following to reduce cost of the snapshots:

  • Reducing the frequency of scheduled snapshots to weekly if the workload allows
  • Deleting snapshot schedules for workloads that no longer require it
  • Shorten the retention policy for auto generated snapshots
    • Note: If you don't set a retention policy, all your auto-generated snapshots will be retained indefinitely. You will incur storage costs for these snapshots until you delete them manually.
  • Update the Source disk deletion policy to ensure snapshots from deleted disks are removed
  • Switching the location of snapshots to Regional instead of Multi-Regional when high availability is not necessary
  • Removing snapshots older than 90 days