Psion 8585, User Manual

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Appendix A: Psion Config Program
File Based Write Filter
Psion 8585/8595 Vehicle-Mount Computers User Manual
A-24
A.14 File Based Write Filter
A.14.1 The FBWF Menus: Current and Target Status of the Installation
The left column of the FBWS menu always shows the currently installed FBWF configuration; the right
column shows the newly defined configuration after the computer is restarted.
Figure A.16 FBWF configuration menu
• When the desired configuration is complete: Don't forget to save the settings.
A.14.2 FBWF Configuration
The File Based Write Filter (FBWF) offers the possibility to protect a partition from changes. In contrast to
the Enhanced Write Filter (EWF), the FBWF filters on a file basis and offers many additional options for con-
figuration. The cache for intermediate storage of the changes can be set for between 64 and 1024 MB.
A.14.2.1 Current Configuration
The currently valid FBWF settings are displayed.
Note: The File Based Write Filter menu is only relevant for the embedded operating systems (XP
Embedded and WES 7) XE “Windows XP Embedded”!
Current Status Settings
Target Status
Table A.6 Configuration after restart
Parameter Description
Write protection enabled Enable FBWF; the computer must be rebooted to activate the settings.
Maximum size of the cache
Memory size available for the overlays. Entries between 64 and 1024 MB are pos-
sible.
Pre-allocation of complete cache
memory
Maximum memory is not dynamic, but statically reserved in advance.