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Increase capacity of a volume

You can resize a volume to increase its reported capacity.

Make sure that:

  • Enough free capacity is available in the volume's associated pool or volume group.
  • The volume is Optimal and not in any state of modification.
  • For thin volumes the maximum reported capacity of 256 TiB has not been reached.
  • No hot spare drives are in use in the volume. (Applies only to volumes in volume groups.)

This task describes how to increase the reported capacity (the capacity reported to hosts) of a volume by using the free capacity that is available in the pool or volume group. Be sure to consider any future capacity requirements that you might have for other volumes in this pool or volume group.

Attention
Increasing the capacity of a volume is supported only on certain operating systems. If you increase the volume capacity on a host operating system that is unsupported, the expanded capacity is unusable, and you cannot restore the original volume capacity.
  1. From the Manage page, select the storage array that contains the volumes you want to resize.
  2. Select Provisioning > Manage Volumes.
  3. Select the volume for which you want to increase capacity, and then select Increase Capacity.
    The Confirm Increase Capacity dialog box appears.
  4. Select Yes to continue.
    The Increase Reported Capacity dialog box appears.

    This dialog box displays the volume's current reported capacity and the free capacity available in the volume's associated pool or volume group.

  5. Use the Increase reported capacity by adding... box to add capacity to the current available reported capacity. You can change the capacity value to display in either mebibytes (MiB), gibibytes (GiB), or tebibytes (TiB).
  6. Click Increase.
    The volume's capacity is increased based on your selection. Be aware that this operation can be lengthy and could affect system performance.

After you expand the volume capacity, you must manually increase the file system size to match. How you do this depends on the file system you are using. See your host operating system documentation for details.