You can add disk drives to an existing logical device to expand its capacity without changing its RAID level. When you expand a logical device, stored data is distributed (or migrated) across all the original and new disk drives.
You can expand logical devices with any of these RAID levels: RAID 0, RAID 5, RAID 6, or RAID 1E. The maximum supported size for a logical device is 512 TB.
To Increase the Capacity of a Logical Device:
In the Logical Devices View, select the logical device you want.
In the Actions menu, select Expand or change logical device.
The wizard opens to the Choose RAID Level window. (Do not change the RAID level!)
Click Next.
The Modify Logical Device window opens.
Select available disk drives or drive segments to add to the logical device. Unavailable disk drives are indicated by blue check marks.
If you want to remove a specific disk drive or segment and replace it with another one (for instance, replace a smaller disk drive with a larger one), click on the disk drive you want to remove.
An X indicates that the selected disk drive will be removed from the logical device, and you are prompted to select another disk drive (of greater or equal size) to replace it.
(optional) Adjust the Advanced Settings, as needed.
Click Next, then review the logical device settings.
To update your logical device immediately, click Apply, then click Yes.
To schedule the changes for later, click Schedule, set the date and time, then click Apply.
To Extend a Partition on a Logical Device:
(Microsoft Windows only) If you have expanded a logical device, you can extend the partition on that logical device to use the newly added space. Refer to your operating system instructions for more information.