AOC-USAS2-L8i/L8e Add-on Card User’s Manual
4-4
You can configure an Integrated Mirroring and Striping volume with an even number of
disks, ranging from four minimum to ten maximum. Figure shows the logical view and
physical view of an Integrated Mirroring and Striping volume with four mirrored disks.
The firmware writes each mirrored stripe to a disk and mirrors it to an adjacent disk.
RAID 10 is another term for this type of mirrored/striped configuration.
The SAS2 BIOS-based configuration utility enables you to create mirrored volumes
during initial setup and to reconfigure them in response to hardware failures or changes
in the environment.
4-4
Mirrored Volume Features
This section describes features of Integrated Mirroring, Integrated Mirroring andStriping,
and Integrated Mirroring Enhanced volumes. You can configure up to two mirrored
volumes on each SAS2 controller.
Figure 4-3. Integrated Mirroring Enhanced with Three Disks
Figure 4-4. Integrated Mirroring and Striping with Four Disks
WARNING:
All existing data on the disks is deleted when you select disk drives
to use for mirrored arrays.
Logical View
Physical View
+
+
Mirrored Stripe N
. . .
Mirrored Stripe 4
Mirrored Stripe 3
Mirrored Stripe 2
Mirrored Stripe 1
Mirrored Stripe N-1'
. . .
Mirrored Stripe 5'
Mirrored Stripe 4
Mirrored Stripe 2'
Mirrored Stripe 1
Mirrored Stripe N
. . .
Mirrored Stripe 6
Mirrored Stripe 4'
Mirrored Stripe 3
Mirrored Stripe 1'
Mirrored Stripe N’
. . .
Mirrored Stripe 6'
Mirrored Stripe 5
Mirrored Stripe 3'
Mirrored Stripe 2
Logical View
Physical View
+
+
Mirrored Stripe N
. . .
Mirrored Stripe 4
Mirrored Stripe 3
Mirrored Stripe 2
Mirrored Stripe 1
Mirrored Stripe N-1
. . .
Mirrored Stripe 7
Mirrored Stripe 5
Mirrored Stripe 3
Mirrored Stripe 1
Mirrored Stripe N-1'
. . .
Mirrored Stripe 7'
Mirrored Stripe 5'
Mirrored Stripe 3'
Mirrored Stripe 1'
Mirrored Stripe N
. . .
Mirrored Stripe 8
Mirrored Stripe 6
Mirrored Stripe 4
Mirrored Stripe 2
+
Mirrored Stripe N’
. . .
Mirrored Stripe 8'
Mirrored Stripe 6'
Mirrored Stripe 4'
Mirrored Stripe 2'
Summary of Contents for AOC-USAS2-L8e
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