Security Features and Document of Volatility 38
Special Options
Option SF2
Option SF2
Option SF2 is a license key-enabled special option that addresses the
requirements of security-conscious users who need to be able to prevent the
saving of measurement results or user configurations to the instrument’s disk
drive while in the instrument application. The option also prevents the recall of
results and configurations from the disk.
Installing Option SF2 makes the following changes to the instrument’s
operating environment:
— Modifies aspects of the Windows operating system, specifically to disable
memory page file usage. For details, see
“Operating System Changes” on
page 38.
— Disables certain menu keys and SCPI commands, eliminating the ability to
save or recall user data. For details, see
“Menu & Command Changes” on
page 38.
Operating System Changes
Installing Option SF2 disables Windows memory page files. The reason for this
change is to ensure that memory page swapping does not inadvertently cause
the instrument to create on-disk copies of RAM data.
Note that one effect of disabling memory page files is to reduce the available
memory space for preloading applications at power-on.
TIP If a disk recovery and software update is performed, memory paging files will
automatically be re-enabled. If the X-Series application is then started (with
Option SF2 installed), an advisory dialog appears, describing how to disable
the page files.
The X-Series application will not start until memory page files are disabled.
For details of how to run SF2RegSetup.reg, refer to
Installation Note: Keysight
X-Series Signal Analyzers Option SF2.
Menu & Command Changes
Installing Option SF2 causes several menu and command changes in the
instrument, as follows.
Front-panel Keys
The functions of the following front-panel keys are disabled. Pressing one of
these keys displays the informational message “Settings conflict; Feature not
available for Option SF2”.
— Quick Save
— Recall
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