
HP Web Jetadmin and Distributed Environments
HP Web Jetadmin is scalable client/server software designed to support distributed environments.
HP Web Jetadmin can be installed on either a server or on a user’s desktop. It can be installed on multiple
servers and the user desktop can support multiple instances of the HP Web Jetadmin client application running
simultaneously.
The HP Web Jetadmin server performs many background tasks including discovery and conguration of devices,
rmware retrieval, and application security. HP Web Jetadmin has a robust client application that runs on
Microsoft Windows desktops. The client application displays device lists and groups and provides all the control
interfaces needed for device management. Due to changes in the allocation of tasks between the client and
server, HP Web Jetadmin oers signicant performance improvements over earlier releases of the software.
Characteristics of the HP Web Jetadmin server-based application include:
●
Can run on remote server-host or locally on client-host.
●
Supports multiple clients (up to 15 or more) accessing a single HP Web Jetadmin server.
●
Supports multiple client sessions on a single desktop accessing separate HP Web Jetadmin servers.
●
Provides secure downloads of client application through a Microsoft Smart Client connection that is
established through Internet Explorer.
●
Communications through Microsoft .NET Remoting.
●
Provides change event mechanism for the server to eciently update application details at clients.
●
Retrieves information from www.hp.com facilitating updates to software, rmware, and more.
●
Oers update service for obtaining application patches, plug-ins, and more from www.hp.com.
●
Automatically updates clients whenever newer server-based client components exist.
●
Ensures that device credentials and user/roles details are securely stored by the server.
●
Provides HTML online help content to clients.
●
Communicates to devices, both network and PC-connected, from the server.
●
Communicates from the server to other hosts (email, print queue, Active Directory, SNMP traps, and more).
How the HP Web Jetadmin Service Works
HP Web Jetadmin provides a variety of features that support the client, application, and device communication.
HP Web Jetadmin runs on the server as a service. The HP Web Jetadmin service (HPWJA Service) contains a
simple HTTP server that downloads the Smart Client application and provides the online Help. For more
information about the Smart Client application, see Deploy the Smart Client on page 15.
The HP Web Jetadmin service also handles the client-driven requests. HP Web Jetadmin communicates with
devices in ways that are both user-driven and automated as background activities. Background activities include
the following:
●
Slow polling: Keeps network trac to a minimum even when multiple client sessions are running.
●
User-scheduled activities: Includes discovery, rmware upgrades, and device conguration.
A scheduled task uses the date and time on the server where HP Web Jetadmin is installed. The location
where the scheduled task runs might not be in the same time zone as the location where the HP Web
Jetadmin server is installed. Consider the potential for date and time dierences when scheduling tasks.
The HP Web Jetadmin service has the following characteristics:
38 Chapter 2 Introduction to HP Web Jetadmin ENWW
Komentáře k této Příručce