HP Web Jetadmin - Using Proactive Alerts with HP Web Jetadmin
6
Fuser Kit—Estimated remaining life for fuser kit supplies
Transfer Kit—Estimated remaining life for transfer kit supplies
Cleaning Kit—Estimated levels for cleaning kits and toner collection units
Drum—Estimated remaining life for drum or OPC supplies
Document Feeder Kit—Estimated remaining life for document feeder kits
Trays—Estimated paper levels in trays excluding manual feed
Other Supplies—Estimated level for supplies not included in other categories (such as bonding
agent, feed roller, roller kit, and stapler)
All events in the Supplies category are monitored by querying remaining levels through polling. The
polling mechanism uses a combination of slow-polling and sliding time intervals depending on the
level of the supply being monitored.
Critical Subscription Type
Although General and Critical contain the same events, Critical polls much more frequently (every five
minutes) to ensure accuracy for events that require polling. Caution should be exercised when
subscribing to Critical alerts due to the volume of network traffic it generates. The polling rate can be
adjusted with the maximum frequency being five minutes (default).
ADJUSTING POLLING RATES
The polling rates differ between the various subscription types. Since General and Critical alerts do
not offer threshold alerts for remaining levels, a standard repetitive interval poller is used for events
where traps are not used. Supplies alerts use a sliding time interval poller (adaptive) that increases the
polling the closer the device reaches the desired threshold.
General/critical alert poller
When you subscribe to alerts under the General or Critical subscription types that rely on polling
instead of traps, HP Web Jetadmin performs a baseline poll (if the alert requires polling) at
subscription time. From that point forward, HP Web Jetadmin only polls at the default polling rate
(different for General and Critical alerts) from when the server started up. The time is not indicative of
when the device subscribed to the alert; rather, it is relative to the time when the server started up.
This is why alerts may be sent by HP Web Jetadmin for different devices at the same time, even
though subscriptions were not made at the same time.
The default interval for all alerts under the General subscription type is 24 hours, while the default
interval for all alerts under the Critical subscription type is 5 minutes. These values can be changed by
Figure 3—Configuring polling rates for alerts