This variable controls generation of deviceUsageTrap
for this resource.
When this variable is true(1), generation of
deviceUsageTrap is enabled. When this variable is
false(2), generation of deviceUsageTrap is disabled.
The default start-up value is true(1).
Percent usage which a notification will be sent when
the value is reached. For example, if deviceUsageHigh
is set to 79 then notification will be send when the
value changes from less than 79 to 79. The default is
defined by the device for a particular resource.