HP T5000 - Manual (Page 31)

Quick Reference Guide www.hp.com 27
Enhanced Write Filter Manager command line control
Ä CAUTION: Terminal Administrators should use Microsoft Windows NT
file security to prevent undesired usage of these commands.
Ä CAUTION: When using the -commit command, all the temporary
contents are permanently written to the flash memory.
✎
Because the Enhanced Write Filter Manager commands are executed
on the next boot, you must reboot the system for the command to take
effect.
Windows XPe includes the Enhanced Write Filter (EWF) console
application command line tool, Ewfmgr.exe, which you can use to
issue a set of commands to the EWF driver, report the status of each
protected volume overlay, and report the format of the overall EWF
configurations.
By including the EWF Manager console application component in
your configuration and building it into your image, you enable use of
Ewfmgr.exe and the corresponding commands.
To use the Enhanced Write Filter Manager using the command line,
select Start > Run > Open and access the system DOS prompt by
typing
CMD
in the Open field and clicking OK.
At the system prompt, enter
ewfmgr c:
and press
Enter.
Using the
ewfmgr <drive-letter> -[boot command]
syntax, use the
following commands in the
boot command
variable of the
command line:
-all
Displays information about all protected volumes and performs a
command, such as disable, enable, and commit, on each volume, if
specified.
-commit
Commits all current level data in the overlay to the protected volume,
and resets the current overlay value to 1. You can combine
-commit
with the
-disable
command to commit and then disable.