Syba SB-ATA8212-133R - Manual (Page 14)

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Drive Assignments Option
You can use arrow keys ↑ and ↓ to highlight the drive you want to assign to the
disk array and change the status of Assignments to “Y” by pressing the “space” bar
key.
For the meanings of “Array Mode”, “Drive No” and “Status”, please refer to Define
RAID Menu on page 21. The location of the hard drive is shown at column “Channel
ID ”. “Pri” represents the primary channel and “Sec” represents the secondary channel.
D0 represents a master hard drive while D1 represents a slave hard drive. Column
“Drive Name” shows the model name of the hard drive. Column “Size” shows the
capacity of each hard drive. When a symbol is shown before the size, the capacity
unit is gigabyte.
When you press “Ctrl-Y” keys to save your change, Setup Utility will check if the
setting is legal. If not, an error message will pop up to show you what the error is and
you have to correct the setting. Limitations are shown as below.
Stripe (RAID 0): There isn ’t any specific limitation.
Mirror (RAID 1): Two hard drives that form a RAID 1 array have to be attached as the
same master or slave hard disks. For example, primary channel (Pri) master drive
(D0) and secondary channel (Sec) master drive (D0) can form a mirror array; primary
channel (Pri) slave drive (D1) and secondary channel (Sec) slave drive (D1) can form
a mirror array; but primary channel master drive and primary channel slave drive
cannot form a mirror array.
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Stripe + Mirror (RAID 0+1): A RAID 0+1 array has to be formed by four hard drives.
RAID 0+1 is implemented as a mirrored array whose segments are RAID 0 arrays.
SPAN (JBOD): There isn ’t any specific limitation.
Normal: If a hard drive is not included in an array (Column “Assignment” in the View
Drive Assignment is shown “Free”), this hard drive is regarded as a normal drive.
The existence of the normal hard drive sometimes will influence the array number
user specified. If the Pri/D0, Pri/D1, Sec/D0 or Sec/D1 hard drive is a normal drive,
array 0, 1, 2 or 3 cannot have the array setting respectively. However, you do not
have to concern about this limitation. If Setup Utility finds any conflicts, Array No will
be adjusted automatically. After finishing setting the array, go back to the Define
RAID Menu on page 21 then you will find the Array No is changed. This is because
the existence of the normal hard drive(s) causes the Array No to be adjusted
automatically.
When you press “Ctrl-Y” keys to save your change and your settings checked by
Setup Utility are correct, the following window will appear. You can choose to clear
the boot sector for the newly created array or not. If your RAID Mode is neither Mirror
nor Stripe + Mirror, this array setting is finished and then you can click the “Esc” key
to go back to the Define RAID Menu on page 21.