Sun Microsystems SunLink SNA 9.1 PU2.1, Руководство по настройке

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Overview 1-3
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1.2 Sun PU2.1 SNA Server Components
The Sun PU2.1 SNA Server consists of several software components that
cooperate with each other to manage the distributed environment. The
following sections describe those components you will encounter most
frequently when using the server.
1.2.1 Graphical Management Interface
The Sun Graphical Management Interface (SunGMI) provides a graphical
interface for managing the Sun PU2.1 SNA Server. Using the SunGMI, you can
configure, monitor, and control the entire distributed server from a single
interface. For more information, refer to Chapter 2, “Using the Administration
Program.”
1.2.2 Gateway Manager
The Sun Gateway Manager (SunGMAN) is a network-level process that
manages the complexity of the distributed environment. The SunGMAN
maintains the configuration and status of the entire distributed server, provides
the Domain Name System (DNS) function, and supports the SunGMI.
To ensure that operational control is not lost and that new client connections
can be made, you can configure and run multiple instances of the SunGMAN
on multiple machines to provide a reliable manager network. If one SunGMAN
fails, the others can continue to provide service. For more information, refer to
Section 1.10, “Manager Network,” on page 1-19.
1.2.3 System Manager
The Sun System Manager (SunSMAN) is a system-level process that operates
on each system running a Sun PU2.1 server process. The SunSMAN processes
all connection requests from networked clients and performs access control.
As a Simple Network Management Protocol (SNMP) agent, the SunSMAN
responds to queries from all Sun Gateway Managers (and other SNMP
managers) and notifies these managers of system events using SNMP traps.
Since SNMP Version 2 is used as the basis for server management, security is
improved and you can use external SNMP managers, such as SunNet
Manager, HP OpenView, and NetView 6000, to manage the server.