NonStop S-Series Hardware Installation and FastPath Guide (G06.29+)

Introduction
HP NonStop S-Series Hardware Installation and FastPath Guide—541880-002
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Installation Overview
Software Connections
A system console can communicate with a server using two types of software
connections: a service connection and a low-level link. Both connections support
NonStop user names, but low-level links support up to 18 MSP user names.
A service connection:
•
Is a connection between the OSM or TSM software on a system console and the
OSM or TSM software on the server.
•
Lets you service and maintain a server when the NonStop operating system is
running.
•
Gives you comprehensive information about the server. You can examine the state
of all supported devices as seen by the operating system and OSM or TSM server
software.
•
Is established by the OSM Service Connection or TSM Service Application.
A low-level link:
•
Is a connection between the OSM or TSM software running on a system console
and the master service processors (MSPs) on the server.
•
Allows communication over a low-level link whether or not the NonStop operating
system is running.
•
Gives you access to critical information and functions.
•
Is established by the OSM or TSM Low-Level Link.