Expanding a Virtual Disk

Sometimes it is necessary to expand a Virtual Disk because of space issues. Some of Dell’s higher end RAID controllers have the option to Reconfigure a Virtual Disk to add space and add more disks to an existing Virtual Disk.

Some things to note:

RAID Level Migration (RLM)
You can change from one RAID level to another RAID level (IE: 1 to 5)
You can only migrate from single-level to single-level array (0,1, 5, 6)
Cannot migrate multi-level/spanned arrays (10, 50, 60)

Here is how to add a disk to a RAID 5 Virtual Disk using OpenManage Server Administrator:
NOTE: Create a backup before completing the below steps!!!

In OMSA, expand Storage > PERC XXX > Virtual Disks

Select the Virtual Disk you are trying expand and click Reconfigure from the Tasks drop down menu and press Exectute

Expand_Virtual_Disk_1

Select the disks that you would like to add to the Virtual Disk. Here I added 0:1:7 and 0:1:8. Note how they say Free because they are not in use. Then check the boxes in the right hand column and press Continue

Expand_Virtual_Disk_2

I want to keep this Virtual Disk as a RAID 5, so I left that as RAID 5 and pressed Continue.

Expand_Virtual_Disk_3

The next page will show you what your current Virtual Disk looks like and what you are updating to. Press Finish to start the expansion.
(NOTE: This will take several hours or possibly all day to complete and will cause a performance hit to read/write speeds while this process is taking place

Expand_Virtual_Disk_4

You can monitor the progress of the expansion

Expand_Virtual_Disk_5

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