Setting Unit Policies
www.3ware.com
119
The Protection profile enables write journaling; the Performance and
Balanced Profile disables it. The Balanced profile disables it only if no
BBU is present.
If write journaling is disabled and a BBU is present, then it is as if the
BBU was disabled for that unit.
•
Write cache disabled on degrade
. In the event that a unit degrades, the
use of write cache can be disabled until the unit is rebuilt. Once the unit is
rebuilt, you must enable the write cache manually. The write cache will
not automatically reenable when the unit is rebuilt.
The Protection profile enables this feature, so that write cache is disabled
in the event a unit degrades; the Performance and Balanced profiles
disable this feature, so that write cache continues to be enabled.
Setting the StorSave Profile through 3DM
In 3DM, the StorSave Profile is a unit policy that can be set on the
Controller
Settings
page.
To set the StorSave profile through 3DM
1
Choose
Management > Controller Settings
from the menu bar in 3DM.
2
In the
Unit Policies
section of the Controller Settings page, select the
profile you want to use from the drop-down list in the StorSave column.
The page refreshes, and a message at the top confirms the change you
have made.
Setting the StorSave Profile through 3BM
In 3BM, the StorSave Profile is set on the
Configure Disk Array
screen.
To set the StorSave Profile through 3BM
1
At the main 3BM screen, select the unit by highlighting it and pressing
Enter
.
An asterisk appears in the left-most column to indicate that it is selected.
2
Tab to the
Maintain Unit
button and press
Enter
.
3
On the pop-up menu, select
Configure
and press
Enter
.
4
In the
Configure Disk Array
screen,
Tab
to the field StorSave Profile.
The current setting—Protection, Balanced, or Performance—is shown.
(The default setting is Protection.)
