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AOC-USAS2-L8i/L8e Add-on Card User’s Manual
4-10
Expanding an Integrated Mirroring Volume with OCE
You can use the online capacity expansion (OCE) feature to expand the capacity of a
two-disk Integrated Mirroring (RAID1) volume by replacing the original disks with two
larger 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 be at least 50 GB larger 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 RAID1 volume with OCE:
1. Physically replace one of the two volume disk drives with a drive that is at least 50
GB larger.
If necessary, you can identify the disks in the volume by following the instructions in
"Locating Disk Drives in a Volume".
2. Wait until synchronization is complete on the new disk and the volume returns to the
Optimal state, as indicated in the A
DAPTER PROPERTIES window of the SAS2 BIOS
Configuration Utility.
3. Physically replace the other volume disk drive with a drive that is at least 50 GB
larger.
4. Again, wait until synchronization is complete on the new disk and the volume
returns to the Optimal state.
5. In the A
DAPTER LIST window of the SAS2 BIOS Configuration Utility, use the arrow
keys to select the SAS adapter with the RAID1 volume and then press E
NTER.
The ADAPTER PROPERTIES window appears.
6. Use the arrow keys to select RAID PROPERTIES, and then press ENTER.
The S
ELECT NEW ARRAY TYPE window appears.
7. Select VIEW EXISTING ARRAY.
The V
IEW ARRAY window appears. If necessary, press Alt + N to switch to the
RAID1 volume with the new, larger disk drives.
8. Select M
ANAGE ARRAY.
The MANAGE ARRAY window appears.
9. Select ONLINE CAPACITY EXPANSION.
A menu screen appears with a warning message and with options to start the
expansion process or quit.
10. Press Y to start the expansion.
NOTE: See the instructions in Section : "Creating Hot Spare Disks" on
page 4-11, if you want to create one or two global hot spares.