HP XC System Software Administration Guide Version 2.1

9
Connecting to a Remote Console
This chapter contains the following topics:
• Information on the Console Management F
acility (Section 9.1)
• A procedure for connecting to a remote console (Section 9.2)
9.1 Console Management Facility (CMF)
The Console Management Facility (CMF
) daemon runs on the head node and collects and stores
console output for all other nod es o n
the system. This information is stored individually for
every node and is backed up periodica
lly. This information is stored under dated directo ries in
the /opt/hptc/cmf/logs/cmf.date
d directory.
The console commandenablesyoutoopenaconsolesessiontoanynodeintheclusteronan
XC3000 or XC6000 system. This feature is not yet available on XC4000 systems.
9.2 Connecting to a Remote Console
Accessing the system console re
motely has clear advantages; among these are the ability to
monitor the system and to corr
ect problems from a remo te location. The information in this
section describes how to est
ablish a connection with the system console and introduces the
console commands.
The console port for each node in the H P XC system uses the cp- prefix . For example, the
name o f the console port for the node n2 is cp-n2.
The following procedure shows how to establish a remote connection to the H P XC system
console:
1. LogintotheHPXCsystem. Inthisexample,penguin is the LVS alias.
# ssh -l login-name penguin
login-name@penguin’s password: password
$
2. Logintothespecifiednode
’s console with the console command. This example uses
n16:
$ console n16
*******************************************************************
* Press ^X to terminate this session.
* You may change your escape key by editing your $HOME/.profile and
* setting the CONSOLE_SESSION_ESC variable to a different
* control character.
*******************************************************************
escape character is ’^X
Trying 172.20.0.16...
Connected to n2
escape character is ’^X’.
HP XC 2.1 as of date
3. Press either the Enter key to obtain a prompt:
Enter
HP XC 2.1 as of date
n16 login:
Connecting to a Remote Console 9-1