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Expand storage

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Using System Manager, you can increase the size of your volume or LUN so that more space is available to your host. The size of a LUN cannot exceed the size of the containing volume.

Beginning with ONTAP 9.12.1, when you enter the new capacity for a volume, the Resize Volume window displays the impact that resizing the volume will have on data space and Snapshot copy reserve.

Also, you can add a LUN to an existing volume. The processes are different when using System Manager with ONTAP 9.7 or 9.8.

Increase the size of a volume

Steps

  1. Click Storage > Volumes.

  2. Hover over the name of the volume you want to increase in size.

  3. Click Menu options icon.

  4. Select Edit.

  5. Increase the capacity value.

  6. Review the Existing and New data space and Snapshot reserve details.

Increase the size of a LUN

Steps

  1. Click Storage > LUNs.

  2. Hover over the name of the LUN you want to increase in size.

  3. Click Menu options icon.

  4. Select Edit.

  5. Increase the capacity value.

Add a LUN to an existing volume (ONTAP 9.7)

To use System Manager with ONTAP 9.7 to add a LUN to an existing volume, you should switch to the Classical View first.

Steps

  1. Log in to System Manager in ONTAP 9.7.

  2. Click Classical View.

  3. Select Storage > LUNs > Create

  4. Specify the details to create the LUN.

  5. Specify to which existing volume or qtree the LUN should be added.

Add a LUN to an existing volume (ONTAP 9.8)

Beginning with ONTAP 9.8, you can use System Manager to add a LUN to an existing volume that already has a least one LUN.

Steps

  1. Click Storage > LUNs.

  2. Click Add+.

  3. Complete the fields in the Add LUNs window.

  4. Select More Options.

  5. Select the checkbox labeled Group with related LUNs.

  6. In the drop-down field, select a LUN that exists on the volume to which you want to add another LUN.

  7. Complete the rest of the fields. For Host Mapping, click one of the radio buttons:

    • Existing initiator group lets you select an existing group from a list.

    • New initiator group lets you enter a new group in the field.