Installation guide

Using the RSN Software
6-4 Fault Tolerant System Administration (R1004H) HP-UX version 11.00.03
Using the RSN Software
This section describes various tasks that you can perform using the RSN software.
NOTE
RSN commands are located in /usr/stratus/rsn/bin.
Configuring the RSN
You must install and initialize the RSN modem and configure the RSN software
before you can perform the tasks described in this section. Instructions for
configuring the RSN are in the “Configuring the RSN and Sending the Installation
Report” chapter in the HP-UX Operating System: Continuum Series 400-CO Hardware
Installation Guide (R021H). This section describes the daemons that RSN uses.
The /etc/inittab file contains several RSN commands. These commands are
set to off after installation. When you activate RSN using rsnon, the commands
are set to respawn. The following is an example of the lines in the inittab file
that start the processes required to run the RSN:
rsnd:234:respawn:/usr/stratus/rsn/bin/rsndbs >/dev/null 2>&1
rsng:234:respawn:/usr/stratus/rsn/bin/rsngetty -r >/dev/null 2>&1
rsnm:234:respawn:/usr/stratus/rsn/bin/rsn_monitor >/dev/null 2>&1
rsndbs starts the server for the RSN database rsndb. rsngetty sets up and
monitors the port that is used by the RSN call communication process rsntrans.
rsn_monitor starts the RSN daemon, rsnd, and checks every 15 minutes to
verify that rsnd is running. If it is not running, rsn_monitor starts rsnd. If
rsn_monitor repeatedly starts the rsnd, but the daemon does not continue
running, rsn_monitor invokes rsn_notify, which creates a call and sends mail
to the CAC.
In addition, a line in/var/spool/cron/crontabs/sracs runs the rsntrans
command. rsntrans uses the RSN file transfer protocol. It manages
communication between the site and the HUB. At installation, this line is
commented out. When you activate RSN using rsnon, the line is activated. The
following is an example of this line:
1,16,31,46 * * * * /usr/stratus/rsn/bin/rsntrans -r1 -s HUB -z >/dev/null 2>&1
For more information, see the rsnadmin(1M), rsnon(1M), rsndbs(1M), rsngetty(1M),
rsntrans(1M), and rsn_monitor(1M) man pages.