
1. Go to Tools > Options > Application Management > User Security.
2. Click the Restore button.
Device Management Conguration Options
The following sections describe the conguration options for functional areas in the Device Management view. To
access these conguration options, go to Tools > Options > Device Management.
Device Polling Conguration Options
There are several conguration options that can be set to aect how device polling is performed in
HP Web Jetadmin.
Congure the Background Polling Options
Whenever you access a device list in HP Web Jetadmin, the devices on the network are polled. You can determine
how many devices and how often devices are polled by setting the rate on the Background polling page. You can
reduce network trac by setting a polling rate appropriate for your own environment.
HP Web Jetadmin performs a slow-poll when users access device lists. Slow polling means that
HP Web Jetadmin queries only a certain number of devices every X seconds and only for specied columns. The
columns polled are based on the union of all columns in the layouts currently displayed on Device List pages on
all currently connected clients. This polling rate can be changed through Tools > Options > Device Management >
Device Polling > Device List. List performance can be improved by changing the polling rate; network trac will
increase.
TIP: Another way to refresh the list more quickly is to highlight any or all devices where fast data is desired.
Selected devices in the currently visible portion of the device list are always polled at a faster rate than non-
selected devices.
Polling always occurs across all devices at the specied rate regardless of whether or not anyone is accessing a
device list. Accessing a device list only aects the columns which are polled for when the polling does occur.
Selecting devices within the visible portion of the list causes those devices to be polled for at a higher rate.
Polling is also aected by thresholds that specify how long the value for a specic column is considered valid.
These thresholds are predened in HP Web Jetadmin. You cannot change the predened thresholds. Before
HP Web Jetadmin polls a device for column values, it performs the following steps:
1. If HP Web Jetadmin does not have a value for a column, it polls the device. If HP Web Jetadmin can obtain a
value from the device, it displays the value in the device lists.
2. If HP Web Jetadmin cannot obtain a value from the device, it checks the age of the value it has. If the age of
the value is within the predened threshold for the column, HP Web Jetadmin considers the value valid.
3. If the age of the value exceeds the predened threshold for the column, HP Web Jetadmin polls the device
to obtain the current value. If HP Web Jetadmin can obtain a value from the device, it displays the value in
the device lists. If HP Web Jetadmin cannot obtain a value from the device, it displays <Unknown> in the
device lists.
The predened thresholds are based on the stability of the value for each column. For example, the Severity
column is considered out-of-date after 15 seconds because the status of devices changes frequently. The
60 Chapter 2 Introduction to HP Web Jetadmin ENWW
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