NEC Express 5800/320Lc - Manual (Page 103)

Windows Setup and Operation 3-29
Disk 4 Disk 5
IMPORTANT: Hard disks are numbered from “0” at the OS startup according to the
position they are inserted. When you increase a hard disk while the system is running, it
will be given a number that is not used for any disks. However when you restart the
system, the old disk numbers will not be retained and disks are re-numbered according
to the hard disk position. Therefore, you need to determine which disks are mirrored
based on target IDs, which are always fixed, but not on disk numbers because disk
numbers may change.
11. Make a mirror setting of Disks 1 and
4. Right-click volume (E) on the
Disk 4 and select [Add Mirror].
12. When the [Add mirror] dialog box
appears, select Disk 1, and then click
[Add Mirror].