You can increase the capacity of an existing software RAID 0, 1 or 5 device by adding partitions, up to the maximum number for the type of RAID. You cannot modify the size of an individual partition after the device is created.
To add partitions to an existing software RAID:
In iManager, click .
For instructions, see Section 3.1.6, Accessing Roles and Tasks in iManager.
Select a server in the eDirectory tree where you are logged in.
For instructions, see Section 3.1.7, Selecting a Server to Manage.
Make sure that there is no I/O for the volumes on the RAID device by deactivating the volume.
Click .
Select the volumes in the RAID device you want to expand.
Click (NetWare) or (Linux).
Select a device in the Software RAID Devices list.
If the device contains the maximum number of partitions, the Increase Size option is dimmed. You cannot expand the RAID. Do not proceed.
Click .
This opens the Expand a RAID wizard to let you choose from available free space on devices that are not already members in the RAID and that contain enough free space to meet the RAID’s current partition size.
Do one of the following:
If there are no devices available, you cannot expand the RAID. Proceed to Step 7.
If the RAID already contains the maximum number of partitions, the Increase Size option is dimmed. You cannot expand the RAID. Proceed to Step 7.
Select the check box next to each of the storage devices you want to obtain space from.
The partition size is predetermined by the existing RAID. The partition you choose must be the same size as other partitions comprising the device.
Stripe size is fixed at its current value for the duration of the expansion. If you want to change the stripe size, restripe after the expansion.
You can choose multiple partitions up to the maximum for the type of RAID it is. For information, see Determining the Number of Partitions and Determining the Partition Size.
Click .
After you add a partition, the RAID’s data is restriped across both existing and new partitions. During the restriping, the RAID’s capacity does not include the added partition. After the restriping is complete, the RAID’s capacity includes the added partition.
For software RAID 1 devices, the additional mirror begins to collect data immediately. Performance is slightly impacted, but data is available.
For software RAID 0 or RAID 5 devices, the system automatically begins restriping the disks to accommodate the partition you just added. This severely impacts performance until the striping is complete. The capacity of the RAID is not updated until the restriping is done. If the restriping process is interrupted before it completes, it begins automatically on system reboot.