Editing a volume

You can change volume attributes such as QoS values, volume size, and the unit of measurement in which byte values are calculated. You can also change access levels and which account can access the volume. You can also modify account access for replication usage or to restrict access to the volume.

About this task

If you are using persistent volumes with the management node, do not modify the names of the persistent volumes.

Steps

  1. Select NetApp Element Management > Management.
    Note: If two or more clusters are added, ensure that the cluster you intend to use for the task is selected in the navigation bar.
  2. Click the Volumes sub-tab.
  3. From the Active view, select the check box for the volume you want to edit.
  4. Click Actions.
  5. In the resulting menu, click Edit.
  6. Optional: In the Volume Size field, enter a different volume size in GB or GiB.
    Note: You can increase, but not decrease, the size of the volume. If you are adjusting volume size for replication, you should first increase the size of the volume assigned as the replication target. Then you can resize the source volume. The target volume can be greater or equal in size to the source volume, but it cannot be smaller.
  7. Optional: Select a different user account.
  8. Optional: Select a different account access level of one of the following:
    • Read/Write
    • Read Only
    • Locked
    • Replication Target
  9. In the Quality of Service area, do one of the following:
    • Under Policy, select an existing QoS policy, if available.
    • Under Custom Settings, set customized minimum, maximum, and burst values for IOPS or use the default QoS values.
    Best Practice: When you change IOPS values, use increments in tens or hundreds. Input values require valid whole numbers.

    Configure volumes with an extremely high burst value. This allows the system to process occasional large block sequential workloads more quickly, while still constraining the sustained IOPS for a volume.

    Attention:
    • Datastore QoSSIOC settings will override any QoS settings at the volume level.
    • Volumes that have a Max or Burst IOPS value greater than 20,000 IOPS might require high queue depth or multiple sessions to achieve this level of IOPS on a single volume.
  10. Click OK.