Clariion LUN Expansion on Navisphere.

Claiion LUN expansion can be done online; it will create a Meta LUN combining the LUNs

LUN expansion features:

• A metaLUN is created by combining LUNs
• Dynamically increase LUN capacity, it can be done on-line while host I/O is in progress
• A Meta LUN can be further expanded
• Meta LUN will appear as a single LUN to hosts
• Meta LUN can be used with MirrorView, SnapView, or SAN Copy

Below are the steps to expand a LUN, I am expanding 450GB LUN presented to a Windows Server adding another 100GB to make it 550GB.

1. Create a new 100GB LUN, this can be created in same Raid Group or another Raid Group (Must be same Raid type)

2.Right click the LUN you wants to expand and select Expand, in my case it is LUN 153 which is 450GB size.

3. This will open a Wizard window, click on Next

4.Select whether you want Striping or Concatenation, please read the details of both on this window, it is self explanatory

5. Select the LUN you need to expand to, it will show the summary on the bottom.

6.Choose the capacity required, you may always choose Maximum Capacity.

7. Click Finish.

8. You can see the new Meta LUN under LUN Folders-MetaLUNs in Navisphere.

9. Now in Windows if you check the size of the drive still it show the same 450GB, if you open the Disk Manger you can see the total space 550 GB which is divided as 450GB (old space) plus added 100GB (Expanded space) as separate unused space.

You need to combine both space using DiskPart utility which comes with Windows.

10. Open Command Prompt

Type DiskPart then enter,then List Disk

You can see now Disk-1 is 550 GB disk and Free space showing 100GB

11. Type List volume and Select your volume to expand , my volume is volume 0, so select volume 0 then type extend and enter.

12.Check the disk space now, you can see the disk space is expanded now.

Please note you cannot extend a system partition also you cannot extend if pagefile is configured on this partition, you need to remove page file and reboot windows to extend the partition.