Asus PCI-DA2200 - Manual (Page 362)

ASUS GUI RAID Manager: RAID Levels
C-4 RAID 1(0+1)
Block 1
Block 2
Block 3
Block 4
Block 5
Block 6
Block 7
Block 8
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.
Block 1
Block 2
Block 3
Block 4
Block 1
Block 2
Block 3
Block 4
Mirroring
Logical Drive
Physical Disks
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.
.
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In addition to the data protection RAID 1 provides, this RAID
level also improves performance. In cases where multiple
concurrent I/Os are occurring, these I/Os can be distributed
between two disk copies thus reducing total effective data access
time.
RAID 1(0+1)
RAID 1(0+1) combines RAID 0 and RAID 1 -- Mirroring and
Disk Striping. RAID (0+1) allows multiple drive failure because
of the full redundancy of the hard disk drives. If more than two
hard disk drives are chosen for RAID 1, RAID (0+1) will be
performed automatically.
IMPORTANT:
RAID (0+1) will not appear in the list of RAID
levels supported by the controller. If you wish
to perform RAID 1, the controller will
determine whether to perform RAID 1 or RAID
(0+1). This will depend on the drive number
that has been selected for the logical drive.
F F