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Add capacity to a local tier in ONTAP

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You can add disks to an local tier so that it can provide more storage to its associated volumes.

Note Prior to ONTAP 9.7, System Manager uses the term aggregate to describe a local tier. Regardless of your ONTAP version, the ONTAP CLI uses the term aggregate. To learn more about local tiers, see Disks and local tiers.
System Manager (ONTAP 9.8 and later)
Note Beginning with ONTAP 9.12.1, you can use System Manager to view the committed capacity of a local tier to determine if additional capacity is required for the local tier. See Monitor capacity in System Manager.
Steps

  1. Select Storage > Tiers.

  2. Select Menu options icon next to the name of the local tier to which you want to add capacity.

  3. Select Add Capacity.

    Note If there are no spare disks that you can add, then the Add Capacity option is not shown, and you cannot increase the capacity of the local tier.

  4. Perform the following steps, based on the version of ONTAP that is installed:

    If this version of ONTAP is installed…​

    Perform these steps…​

    ONTAP 9.8, 9.9, or 9.10.1

    1. If the node contains multiple storage tiers, then select the number of disks you want to add to the local tier. Otherwise, if the node contains only a single storage tier, the added capacity is estimated automatically.

    2. Select Add.

    Beginning with ONTAP 9.11.1

    1. Select the disk type and number of disks.

    2. If you want to add disks to a new RAID group, check the check box. The RAID allocation is displayed.

    3. Select Save.

  5. (Optional) The process takes some time to complete. If you want to run the process in the background, select Run in Background.

  6. After the process completes, you can view the increased capacity amount in the local tier information at Storage > Tiers.