Avago Technologies SAS 9300-4i Host Bus Adapter - Manual (Page 16)

LSI Corporation
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SAS-3 Integrated RAID Solution User Guide
November 2012 Chapter 3: Creating Mirrored Volumes
Creating Mirrored Volumes
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.
3.2.2 Creating an Integrated Mirroring Enhanced or Integrated Mirroring + Striping Volume
Integrated Mirroring Enhanced volumes contain three physical disks to ten physical disks. Data is written to a disk and
is mirrored on an adjacent disk. Integrated Mirroring + Striping volumes can have a minimum of four physical disks
and a maximum of 10 physical disks, in even numbers. In an Integrated Mirroring Enhanced or Integrated Mirroring +
Striping volume, the data is both mirrored and striped.
Follow these steps to create an Integrated Mirroring Enhanced (RAID 1E) or Integrated Mirroring + Striping (RAID 10)
volume with the SAS3 BIOS CU. The steps begin with the Adapter List window that appears when the configuration
utility starts.
1. On the Adapter List window, use the arrow keys to select an LSI SAS-3 adapter, and then press Enter.
The Adapter Properties window appears, as shown in Figure 5 .
2. Use the arrow keys to select RAID Properties, and then press Enter.
The Create Array window appears.
3. Select Create RAID 1E Volume.
The Create New Array window appears.
4. Move the cursor to the RAID Disk column and select a line that has a No entry in this column, which indicates that
the disk is not already part of the volume you are creating. To add the disk to the new array, change the No to Yes
by pressing the space bar.
5. Move the cursor to another line and press the space bar to add another disk to the array.
If you select an odd number of disks, the SAS3 BIOS CU creates an Integrated Mirroring Enhanced array. If you
select an even number of disks, it creates an Integrated Mirroring + Striping array. As you add disks, the Array Size
field changes to reflect the size of the new array.
6. Press C to create the array.
A menu window appears.
NOTE To create a second Integrated Mirroring volume, repeat these instructions starting with step 2 .
Alternatively, follow the instructions in the following section to create an Integrated Mirroring Enhanced or
Integrated Mirroring + Striping volume.
NOTE See the instructions in Section 3.3, Managing Hot Spare Disks , if you want to create one or two global
hot spares.
CAUTION The SAS3 BIOS CU deletes all existing data from the disks drives when you select them to use
for a mirrored volume.