SAS BIOS configuration utility 18
5.
Press the
+
key,
–
key, or
spacebar.
The
No
in the RAID Disk field changes to
Yes
, and the value in the Array Size field changes to
reflect the new size of the volume.
6.
Repeat steps 4 and 5 for each drive that you want to use in the RAID volume.
7.
Confirm that the configuration of the RAID volume is exactly as you want it. You cannot change the
configuration after the utility has created the array.
8.
Press the
C
key.
9.
Select
Save changes
.
The configuration utility pauses while it creates the array. When array creation is complete, the
Adapter Properties screen appears.
10.
(Optional) To set this RAID 0 volume as the boot volume, select the
SAS Topology
option on the
Adapter Properties screen and then, on the SAS Topology screen, set the boot volume. For more
information, see "Selecting a boot disk (on page
21
)."
Creating a RAID 1 volume
In a RAID 1 volume, data is mirrored from one disk drive to another one. This procedure increases
reliability by providing protection against the failure of a single drive.
You can provide additional protection by configuring a RAID 1 volume with a hot spare. If a drive fails in
such a configuration, data that was on the failed drive is rebuilt to the hot spare from the mirrored drive.
When selecting drives for the RAID 1 volume, remember the following limitations:
•
Every drive in the volume must be the same type, either SAS or SATA.
•
Each drive must have 512-byte blocks.
•
Drives with removable media are not supported.
•
A RAID 1 volume must have two drives (three if you use a hot spare).
To create a RAID 1 volume:
1.
On the Adapter List screen, select an adapter.
2.
On the Adapter Properties screen, select
RAID Properties
.
o
If the adapter has a configured volume, the View Array screen appears. Press the
C
key to create
a new volume.
o
If the adapter does not yet have a configured volume, the Select New Array Type screen
appears.
3.
On the Select New Array Type screen, select
Create RAID 1 Volume
.
The Create New Array screen appears. This screen lists the drives that you can use to create the
RAID 1 volume.
4.
Identify a drive that you want to use in the RAID volume, and then move the cursor to the
RAID Disk
column for that drive.
5.
Press the
+
key,
–
key, or
spacebar.
The
No
in the RAID Disk field changes to
Yes
, and the value in the Array Size field changes to
reflect the new size of the volume.
When you add the first drive, the utility prompts you to keep any existing data on that drive or
overwrite it.
