5. RAID System Configuration
Express5800/R120f-1E Maintenance Guide
144
Chapter 2 Useful Features
6)
Select
Select Drives
under
Span2
, and then select the device type for
Select Media Type
.
7)
When the selected physical device is displayed, select two physical devices to be created, and
then select
Enabled
.
8)
Select all of the physical devices to be created, select
Apply Changes
, and then select
OK
on
the next screen.
Note
You may select either of the upper or lower
Apply Changes
which is provided at two
locations.
9)
Select values for
Virtual Drive Name
,
Disk WC
, and
Read Ahead
.
9-1.
Virtual Drive Name
: Specify the name of the virtual drive. (Optional)
9-2.
Disk WC
: Specify the Disk Write Cache policy.
Parameter
Remarks
Enable*
Wright back
Disable
Write through
* Recommended
For this server, Setting
Enable
is recommended for good performance. Note, however,
that cached data may be lost at an unexpected power failure.
Selecting
Disable
degrades performance by approximately 50%, comparing with the
Enable
setting.
