To view and manage UWF control settings, use
the Unified Write Filter Control dialog box. To open the dialog
box, double-click the UWF icon in the notification area of the administrator
taskbar.
When you configure UWF control settings, some of the
fields are unavailable. You can select from the list of available
fields during configuration.
The Dell Wyse Unified Write Filter Control dialog box
includes the following:
UWF status
Current Status—Shows the status
of the Unified Write Filter. The status may either be Enabled or Disabled.
Boot Command—Shows the status
of the Boot Command. UWF_ENABLE means that the UWF is enabled for
the next session; and UWF_DISABLE means that the UWF is disabled for
the next session.
RAM used by UWF—Shows the amount
of RAM allocated to the Unified Write Filter in Mega bytes (MB) and
Percentage. If Current Status is disabled, RAM allocated to
UWF is always zero (0).
Amount of RAM used for UWF Cache—Shows the amount of RAM allocated to the Unified Write Filter cache
for the current session in Megabytes (MB).
Warning #1 (%)—Shows the UWF
cache percentage value at which a Low Memory warning message is displayed
to the user for the current session.
Warning #2 (%)—Shows the UWF
cache percentage value at which a Critical Memory warning message
is displayed to the user.
UWF Cache settings
Amount of RAM to be used for UWF
Cache—Shows the amount of RAM that is to be used as the Unified
Write Filter cache for the next session in MB. This value should be
in the range of 256 MB to 2048 MB. There is an extra check to ensure
that this value does not exceed 50% of Total Available RAM.
UWF Warning settings
Warning #1 (%)—Shows the UWF
cache percentage value at which a Low Memory warning message is displayed
to the user (Default value = 80, Minimum value = 50, Maximum value
= 80).
Warning #2 (%)—Shows the UWF
cache percentage value at which a Critical Memory warning message
is displayed to the user. Once the memory level crosses the warning
level 2, system automatically restarts. (Default value = 90, Minimum
value = 55, Maximum value = 90)
Enable UWF—Allows you to enable
the Unified Write Filter and prompts you to restart the thin client
device. To save the changes, restart the thin client. After the system
restarts to enable the Unified Write Filter, the Unified Write Filter
status icon in the desktop notification area turns green.
Disable UWF—Allows you to disable
the Unified Write Filter and prompts you to restart the thin client
device. To save the changes, restart the thin client. After disabling
the Unified Write Filter, the Unified Write Filter status icon in
the desktop notification area turns red and the Unified Write Filter
remains disabled after the system restarts.
Defaults—Allows you to reset
the UWF Cache Settings area, and the UWF Warning Settings area to
their default values.
File Commit area
File Path—Allows you to add,
remove, and commit files to the underlying media. The system does
not restart the thin client device. The changes are committed immediately.
NOTE: Delete a file path from the list, if the file is not committed.
Current Session Exclusion List
File/Directory Path—
Allows
you to add and remove a file or directory, to or from the exclusion
list for the next session. This retrieves the list of files or directories
that are written through in the current session and the title of the
pane is shown as Current Session Exclusion List. The Next Session
retrieves the list of files or directories that are written through
for the next session and the title of the pane is shown as Next Session
Exclusion List. The system will not restart the thin client, and the
changes are not committed until an administrator restarts the thin
client device manually.
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