User`s manual

RAID
2-7
4. In a Mirrored set, the source drive needs to be EQUAL TO OR
SMALLER than the destination drive. For optimal performance,
the source drive and destination drive should be from different
channels. After entering the source drive (for example, enter 1),
the following line appears:
Enter the second drive number (destination drive) in Mirrored
set:
Note: The TOTAL size of a Mirrored set is the size
of the source drive included in the set.
5. Enter the second drive (for example, enter 3). The following line
appears:
Do you want to copy from the source to destination drive? (Y/
N)
What does this question mean? If the disk assigned as the
source disk already has been partitioned and has data stored on
it, and then a second disk is added for redundancy, the data on
the source drive can be copied to the destination drive, so the
disks are identical, and all subsequent data will be written to
both drives as a Mirrored set.
If, however, the source disk does not have data already stored
on it, answer N.
6. After answering, the following line appears:
Auto-Rebuild enabled? (Y/N)
7. Answer Y (recommended), the following line appears:
Are you sure? (Y/N)
8. Answer Y to create the Mirrored set. The following screen
appears:
Drive Number: 0 Manufacturer Model 19541 MB
Drive Number: 1 Manufacturer Model 19541 MB
Secondary Channel:
Drive Number: 2 Manufacturer Model 19541 MB
Drive Number: 3 Manufacturer Model 19541 MB