Introduction to Networking for NonStop S-Series Servers

Expand Network
Introduction to Networking for HP NonStop S-Series Servers
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Online Expansion and Reconfiguration
Online Expansion and Reconfiguration
You can add a new node or new lines to a network or move an existing node to a
different location without disrupting network activity.
You can make changes to your Expand configuration online using the Subsystem
Control Facility (SCF) interfaces to the Expand and WAN subsystems. Table 5-1
shows the online expansion and reconfiguration tasks that can be performed with
these interfaces.
The SCF interface to the Expand subsystem is described in the Expand Configuration
and Management Manual. The SCF interface to the WAN subsystem is described in
the WAN Subsystem Configuration and Management Manual.
Network Security
The Expand subsystem provides security features to control access to remote servers
and files.
Remote Passwords
To access a remote server, you must have a username and user ID on the remote
server that is identical to those on the local server. You use the REMOTEPASSWORD
command to set up two remote passwords for the local username and user ID: one to
establish a remote password for the local server, and one to establish a remote
password for the remote server. You again use the REMOTEPASSWORD command to
set up remote passwords for the remote username and user ID.
Before you can access a file on a remote server, you must have the proper security as
well as remote passwords for both the local and remote servers. Each file has
associated security attributes that can be changed with the FUP SECURE command.
Table 5-1. Online Reconfiguration Tasks
Task
SCF for
Expand
SCF for
WAN
Adding the network control process No Yes
Adding an Expand line-handler process No Yes
Reconfiguring the network control process Yes
1
Yes
2
Reconfiguring an Expand line-handler process Yes
1
Yes
2
Deleting the network control process No Yes
Deleting an Expand line-handler process No Yes
1. Changes made with SCF for the Expand subsystem are temporary; they do not remain across system loads.
2. Changes made with SCF for the WAN subsystem are permanent; they do remain across system loads.
Note. Setting up remote passwords is explained in the Guardian User’s Guide.