HP Web Jetadmin - Device Information Polling and Related Features

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Refresh features are activated by
using the right-click menu shown
in Figure 8. Refresh Selection can
be used on multiple devices and
in any device list.
FEATURES AND
DEVICE DETAIL
Polling exists to provide data for
features such as device lists or to
trigger events like alerts and
automatic groups’ policies. In this
way, polling is an essential
component of several key
features in HP Web Jetadmin.
Two of these are alerts and
reports.
Alerts
An alert, generated by an alert subscription, can contain many device details. When users set up
alerts subscriptions, they can also build custom email or SNMP trap messages containing many
device attributes. System Contact, IP Hostname, or Page Count, for example, can all be included in
the alerts message. Figure 9 shows a Standard Email from an HP Web Jetadmin alert. In this
message, HP Web Jetadmin gathered a few device attributes before sending the email. HP Web
Jetadmin gathers this information at the time the email message is formatted and not through polling.
Some of the details may have existed in the database and may have been fresh enough that HP Web
Jetadmin did not need to query them directly from the device. The details are gathered as part of the
feature action and not through alerts or supplies alerts polling.
Reports
Reports work much the same way as alerts. Reports are typically based on historic device data that is
gathered through a different kind of polling not discussed in this document, called ”data collections.”
(See the “Creating reports and exporting data in HP Web Jetadmin” white paper, found on the Self
Help and Documentation tab at
www.hp.com/go/wja
, to learn
more about data collections.)
Some reports data is actually
device data that is gathered at
the time of report generation.
System Contact, Device Serial
Number, and Engine Cycle
Count are just a few of the
device data elements that can be
added to reports. Figure 10 (on
the next page) shows a report
that has device elements
embedded in the actual report
output.
Figure 8—Refresh Selection
Figure 9—Alert in Standard Email format