Expanding a LUN

You can expand a LUN using the SnapDrive for Windows MMC snap-in.

Considerations

Steps

1. Under SnapDrive in the left MMC pane, select the instance of SnapDrive you want to manage. Then, double-click Disks and select the disk you want to manage.
2. From the menu choices at the top of MMC, navigate to Action > Expand Disk.
3. In the Expand Disk window, perform the following steps:
   1. Under Snapshot Copies, leave the Do you want to limit the maximum disk size to accommodate at least one snapshot on the volume? option set to the default setting of Limit.

      When you select this option, the disk size limits displayed are accurate only when they first appear on the Select LUN Properties panel. When this option is selected, the following actions might interfere with the creation of at least one Snapshot copy:

      • The option to limit the maximum disk size to accommodate at least one Snapshot copy is not selected when SnapDrive is used to create an additional LUN in the same storage system volume.
      • A LUN is created in the same storage system volume without using SnapDrive.
      • Data objects other than LUNs are stored on this storage system volume.

   2. Under LUN Size, specify the amount by which you want to expand the LUN.
      • Set the units for this value by choosing MB or GB from the drop-down menu to the right of the Expand by Size box.
      • Type a value in the Expand by Size box that falls between the minimum and maximum sizes listed on the panel.

   3. Click OK.
4. Create a new Snapshot copy of the expanded LUN.

After You Finish