Avago Technologies SAS 9300-4i Host Bus Adapter User Manual
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LSI Corporation
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SAS-3 Integrated RAID Solution User Guide
November 2012
Chapter 3: Creating Mirrored Volumes
Creating Mirrored Volumes
7.
From the menu options, select Save changes then exit this menu.
A message appears briefly, and then the SAS3 BIOS CU returns to the Adapter Properties window. Initialization of
the new array continues in the background.
3.2.3
Expanding an Integrated Mirroring Volume with OCE
Use the OCE feature to expand the capacity of a two-disk Integrated Mirroring (RAID 1) volume by replacing the
original disks with two higher-capacity disk drives while the volume remains online. This process maintains data
integrity at all times, even if one of the disks fails during the replacement process. The new disks must have at least
50 GB more capacity than the disks they are replacing, and they must use the same protocol (SAS or SATA) as the disks
they are replacing.
Follow these steps to expand an existing RAID 1 volume with OCE.
1.
Physically replace one of the two volume disk drives with a drive that has at least 50 GB more capacity.
If necessary, you can identify the disks in the volume by following the instructions in Section
2.
Wait until synchronization completes on the new disk and the volume returns to the Optimal state, as indicated in
the Adapter Properties window of the SAS3 BIOS CU.
3.
Physically replace the other volume disk drive with a drive that has at least 50 GB more capacity.
4.
Again, wait until synchronization completes on the new disk and the volume returns to the Optimal state.
5.
In the Adapter List window of the SAS3 BIOS CU, use the arrow keys to select the LSI SAS adapter with the RAID 1
volume, and then press Enter.
The Adapter Properties window appears.
6.
Use the arrow keys to select RAID Properties, and then press Enter.
The Select New Array Type window appears.
7.
Select View Existing Array.
The View Array window appears. If necessary, press Alt + N to switch to the RAID 1 volume with the new,
higher-capacity disk drives.
8.
Select Manage Volume.
The Manage Volume window appears.
9.
Select Online Capacity Expansion.
A menu window appears with a warning message and with options to start the expansion process or quit.
10. Press Y to start the expansion.
The RAID Properties window appears when the expansion process completes.
11. Run a commercial tool specific to the operating system to move or increase the size of the partition on the newly
expanded RAID 1 volume.
NOTE To create a second Integrated Mirroring Enhanced or Integrated Mirroring + Striping volume,
repeat the previous instructions.
NOTE See the instructions in Section
, if you want to create one or two
global hot spares.