You can increase or decrease the size of a disk as your storage system needs change.
About this task
- For thin provisioned LUN, the ONTAP lun geometry size is shown as the maximum size.
- For thick provisioned LUN, the expandable size (available size in the volume) is shown as the maximum size.
- LUNs with
MBR-style partitions have a size limit of 2 TB.
LUNs with
GPT-style partitions have a
storage system size limit of 16 TB.
- It is a good idea to make a Snapshot copy before resizing a LUN.
- If you need to restore a LUN from a Snapshot copy made before the LUN
was resized, SnapCenter automatically resizes the LUN to the size of the Snapshot
copy.
After the
restore operation, data added to the LUN after it was resized must
be restored from a Snapshot copy made after it was resized.
Steps
- In the left navigation pane, click Hosts.
- In the Hosts page, click Disks.
- Select the host from the Host drop-down list.
The disks are listed.
- Select the disk you want to resize and then click Resize.
- In the Resize Disk dialog box, use the slider tool to specify the new size of the disk, or enter the new size in the Size field.
Note: If you enter the size manually, you need to click outside the Size field before the Shrink or Expand button is enabled appropriately. Also, you must click MB, GB, or TB to specify the unit of measurement.
- When you are satisfied with your entries, click Shrink or Expand, as appropriate.
SnapCenter resizes the disk.