IEI Integration WAFER-LX v1.22 - Manual (Page 222)

WAFER-LX Motherboard
Page 204
H.2 RAID 1
RAID 1, or mirroring, places the exact same data on all disks in the RAID array. One block
of data is written to the first disk, the same block of data is written to the second disk, and
so on. When data is read, it can be read from either disk in the array.
RAID 1 offers more data security than a single disk setup. Read and write performance is
the same as a single disk. RAID 1 is more secure than a single disk as a failed disk can be
removed from the array, and the information restored from the remaining working drives.
The logical RAID volume below shows the disk drive that the operating system would see.
The physical disks show the disks that are contained in the RAID volume.
Figure H-2: RAID 1