OVNPM 1.5.2 - Performance Agent for NonStop Server Management Guide

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9-3 DSV for OVNPM Display Agent
This is the DSV architecture. It shows two nodes on the EXPAND network, with the DSV server installed on Node
1. Two additional processes, Distributed Display Agent Server, and a TCP communication Server are integrated.
Figure 9-3 DSV Architecture
A DSV server is a process that is in charge of the connection to the remote OVNPM host server subsystems. It
functions like a gateway, routing the Display Agent requests to the correct OVNPM host subsystem, and then
grouping responses to send to the Display Agent via a TCP/IP communication server.
The DSV server is linked to remote nodes through the existing Display Server (DS) process.
A DSV supports a maximum of 80 nodes. Theoretically, 256 nodes can be supported. This limit can be activated
at customer request. Each node can support 5 DSV. Each DSV in turn supports up to 12 simultaneous users.
With a single connection to one OVNPM host server, DSV allows the user to perform the following tasks:
• Monitor all EXPAND linked nodes from a single OVNPM Display Agent.
• Create SystemInsight views, which contain metrics collected from multiple nodes of the EXPAND
network.
• View SystemAlert messages from all EXPAND linked nodes in one Display Agent window.
• Request OVNPM data from any EXPAND linked node.
9-3-1 Distributed SystemAlert
Distributed SystemAlert offers the ability to define thresholds on any connected node and to receive alert
messages from any connected node. To configure thresholds, OVNPM asks to select the node on which you are
defining thresholds.
Received alert messages include SystemAlert messages, File Scanning messages, Device and Application
Availability messages, and loop messages.