HP Web Jetadmin Software Instrukcja Użytkownika Pobierz pdf (Strona 7)

Depending on the number of devices selected, there may be a short delay in the data update

in your device list.

Refresh Selection (Full)

From the device list, right-click and select Refresh Selection (Full) to obtain complete device and status

information. With Refresh Selection (Full), HP Web Jetadmin clears device data for the selected device

and then re-retrieves the data elements important to device identification. This is useful when, for

example, you believe a device has become disassociated from the IP address recorded for it in the

HP Web Jetadmin database. If the recorded IP address for a device is correct, HP Web Jetadmin

simply updates the device status information, retaining all acquired data. If, however, the IP address

in the database is associated with a different device, HP Web Jetadmin performs the equivalent of a

device discovery and registers the new device into the database. Information about the previous

device remains as well, but Communication Error displays in the device list until HP Web Jetadmin

discovers it under a new IP address or it is deleted.

NOTE For performance reasons, Refresh Selection (Full) is currently restricted to a single device. To

refresh your device database, run a full discovery on your network, or on a specific list of IP

addresses using Specified Address Discovery.

Managing MultiHomed devices

“MultiHomed” devices have multiple IP addresses associated with them. HP Web Jetadmin supports

this configuration, and offers a dedicated Device List column to show MultiHomed devices. The

MultiHomed column can be added to any Device List Layout. Yes and No values indicate whether a

device is MultiHomed or not. When dealing with MultiHomed devices, keep the following in mind:

 Each IP address is considered as a separate and unique device in the Device List. For simplicity,

assume one device—Bill’s printer—with two IP addresses assigned to it, and two hostnames:

Bill_Printer1 and Bill_Printer2.

 If a user-defined object (like System Contact) is defined for Bill_Printer1, the definition displays for

Bill_Printer2 as well.

 When Bill’s MultiHomed printer is added to a data collection, both Bill_Printer1 and Bill_Printer2

are included as individual devices.

 When Bill’s MultiHomed printer is removed from a data collection, both Bill_Printer1 and

Bill_Printer2 are removed.

 If Bill_Printer1 is deleted from the database, Bill_Printer2 remains unaffected and displays as

active.

 If Bill_Printer1 is part of a data collection and is deleted from the database, only Bill_Printer1 is

removed from the data collection.

 If both Bill_Printer1 and Bill_Printer2 are included in a page count report, the output for Bill’s

MultiHomed printer is counted twice. As a result, HP strongly advises against including

MultiHomed devices in page count reports.

Device uniqueness

To maintain accurate data, HP Web Jetadmin identifies individual, unique devices by querying them

for a serial number. If a device does not have a serial number or does not respond to HP Web

Jetadmin’s request for a serial number, the device is marked as not being unique. Some third-party

devices (and even some older HP devices) may not respond with a valid serial number. In such cases,

HP Web Jetadmin may be limited in how it manages that device. In order to help manage device

uniqueness, HP Web Jetadmin now offers a dedicated Device List column called Unique, which can

be added to any Device List layout. Yes and No values indicate whether a device is unique or not.

When dealing with device uniqueness, keep the following in mind:

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