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<Setting command>
The EWF setting is performed using the "ewfmgr" command. The specification of the
"ewfmgr "command is shown below, but since the result of the command is applied the next
OS started up time, restarting the equipment is necessary to validate the change contents.
ewfmgr [<volume-name>*] [options]
Command options
-all
-enable
-disable (*1)
：Not supported
-commit
-commitanddisable [-live]
(*3)
-nocmd
-persist="<persistent data>"
(*4)
：Not supported
-activatehorm (*5)
：Not supported
-deactivatehorm (*5)
：Not supported
(*1) Since the EWF of this equipment operates in the RAM registry mode, the disable option
can not be used (the contents of the setting change written in the registry are discarded
by EWF). You must use the "commitanddisable option".
(*2) Due to the EWF specification, it is not possible to commit without restarting the
system or shutting down. However, in the case of commit (-commitanddisable-live)
with EWF disabled, immediate execution is possible.
(*3) Since you can not execute the commit option and the disable option alone at the same
time, in that case use the "commitanddisable option".
(*4) It is not supported on this equipment because it can be used only when EWF is in RAM
mode.
(*5) By enabling HORM, it is possible to shorten the time it takes to return from hibernation
mode, but do not use this system because it is not supported.
Table 4-3 Ewfmgr Command Specification
Performs a specified command on all protected volumes.
Enables the overlay on the specified protected volume.
(Enable EWF)
Disables the overlay on the specified protected volume.
(Disable EWF)
Commits (write) all data in the overlay to the protected
volume. The overlay is written to protected volume when the
system is shut down or restarted. (*2)
Commit all data in the overlay to the protected volume and
invalidate the overlay. Overlays are written to protected
volumes when the equipment is shut down or restarted.
You can use the -live option to immediately commit the
overlay to the protected volume and disable the overlay
without having to restart the system.
Example: ewfmgr c: -commitanddisable -live
Clears the current pending command.
Specify a 64-byte field that persists throughout all overlays
for a specific protected volume.
Enable HORM.
Disable HORM.
4. PRECAUTIONS REGARDING THE OS
Description
4-5
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