Avocent DSView Installer/User Manual page 23

Chapter 1: Product Overview 3
DSView 3 software server
The DSView 3 software server contains the DSView 3 management software that enables users to
securely access, manage, monitor and control remote target devices through managed appliances.
The DSView 3 software server provides a centralized database for storing configuration, user, unit
and system information. The software server also provides services for authentication, access
control, logging events, monitoring and license management.
You may configure one or more spoke (backup) servers in addition to the hub server.
The hub server is responsible for maintaining the master copy of the database in a DSView 3
software system. Only one server in a DSView 3 software system may be configured as the
hub server.
Spoke servers perform database replication with the hub server. The hub server acts as the
coordinator for database replication between itself and all of the other spoke servers in a DSView 3
software system. A hub server and a spoke server both offer the same DSView 3 software
functionality to a user. The distinction of hub or spoke refers only to the database replication role
that the server plays and not with the functionality that the server provides. Adding one or more
spoke servers to a DSView 3 software system provides redundancy and the ability to distribute
DSView 3 software functionality across multiple sites.
After the hub server and optional spoke server(s) are configured, you may create and configure the
type of access levels for users within your network environment. You may also set up event logs to
record full details of user access and other events.
DSView 3 software client
A DSView 3 software client is a computer with a web browser that may access the DSView 3
management software installed on the DSView 3 software server. A user may access and
administer the DSView 3 software server and units using the DSView 3 software client.
Third party products
Third party products are not a part of the DSView 3 software, but are supported for use with it.
External authentication servers - An external authentication server enables the DSView 3 software
server to broker authentication requests from users requesting access to the DSView 3
software system.
SNMP managers - The SNMP (Simple Network Management Protocol) manager monitors the
managed appliances and receives SNMP traps from the DSView 3 software on the server. An
example of an SNMP manager is the HP OpenView product.
Third party Telnet viewers - A third party Telnet viewer may be used for serial sessions instead of
the DSView 3 software Telnet Viewer.
Third party session software - Third party software such as XTERM or VNC, when properly
installed and configured on the target device, may be enabled for use within the DSView 3 software
for initiating sessions with the target device.