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Manage storage efficiency policies

Contributors netapp-thomi netapp-aherbin netapp-ahibbard
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Beginning with ONTAP 9.8, you can use System Manager to enable, disable, add, edit, or delete efficiency policies for storage VMs on FAS systems.

Note This function is not available on AFF systems.
Steps

  1. Select Storage > Storage VMs

  2. Select the storage VM for which you want to manage efficiency policies.

  3. On the Settings tab, select blue_arrow to right in the Efficiency Policy section. The efficiency policies for that storage VM are displayed.

You can perform the following tasks:

  • Enable or disable an efficiency policy by clicking the toggle button in the Status column.

  • Add an efficiency policy by clicking on Add+.

  • Edit an efficiency policy by clicking on the kebab icon to the right of the policy name and selecting Edit.

  • Delete an efficiency policy by clicking on the kebab icon to the right of the policy name and selecting Delete.

Efficiency policies list

  • Auto

    Specifies that deduplication is continuously performed in the background. This policy is set for all newly created volumes and for all upgraded volumes that have not been manually configured for background deduplication. If you change the policy to “default” or any other policy, the “auto” policy is disabled.

    If a volume moves from a non-AFF system to an AFF system, the “auto” policy is enabled on the destination node by default. If a volume moves from an AFF node to a non-AFF node, the “auto” policy on the destination node is replaced by the “inline-only” policy by default.

  • Policy

    Specifies the name of an efficiency policy.

  • Status

    Specifies the status of an efficiency policy. The status can be one of the following:

    • Enabled

      Specifies that the efficiency policy can be assigned to a deduplication operation.

    • Disabled

      Specifies that the efficiency policy is disabled. You can enable the policy by using the status drop-down menu and assign it later to a deduplication operation.

  • Run By

    Specifies whether the storage efficiency policy is run based on a schedule or based on a threshold value (change log threshold).

  • QoS Policy

    Specifies the QoS type for the storage efficiency policy. The QoS type can be one of the following:

    • Background

      Specifies that the QoS policy is running in the background, which reduces potential performance impact on the client operations.

    • Best-effort

      Specifies that the QoS policy is running on a best-effort basis, which enables you to maximize the utilization of system resources.

  • Maximum Runtime

    Specifies the maximum run-time duration of an efficiency policy. If this value is not specified, the efficiency policy is run till the operation is complete.

Details area

The area below the efficiency policy list displays additional information about the selected efficiency policy, including the schedule name and the schedule details for a schedule-based policy, and the threshold value for a threshold-based policy.