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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
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.
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You may select either of the upper or lower Apply Changes which is provided at two
locations.
Parameter
Enable*
Wright back
Disable
Write through
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.
Express5800/R120f-1E Maintenance Guide
Remarks
* Recommended
5. RAID System Configuration
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