User's Manual
2-10 Chapter 2: RAID conguration
2. Click Add To Array to move the
drives to a proposed drive group
conguration in the Drive Groups
panel on the right, as shown in the
right gure.
3. Select a preferred power save
mode. The power save mode can
be Max, Max without cache, Auto,
None, and Controller dened. If
you need to undo the changes, click
the Reclaim button.
4. When you have nished selecting drives for the drive group, click Accept DG.
5. Click Next. The Span Denition screen appears. Select one of the available
drive groups, and then click Add to SPAN.
6. When nish, click Next. The Virtual
Drive Denition screen appears,
as shown in the right gure. Use
this screen to select the RAID level,
strip size, read policy, and other
attributes for the new virtual drives.
7. Change the virtual drive options
from the defaults listed on the
screen as needed.
Here are brief explanations of the
virtual drive options:
• RAID Level: The drop-down menu lists the possible RAID levels for the
virtual drive. Select RAID 0.
• Strip Size: The strip size species the size of the segment written to
each disk in a RAID conguration. You can set the strip size up to 1 MB.
A larger strip size produces higher read performance. If your computer
regularly performs random read requests, choose a smaller strip size.
The default is 256 KB.
• Access Policy: Select the type of data access that is allowed for this
virtual drive:
◊ RW: Allow read/write access. This is the default.
◊ Read Only: Allow read-only access.
◊ Blocked: Do not allow access.
• Read Policy: Specify the read policy for this virtual drive:
◊ No Read Ahead: This disables the read ahead capability.