HP XC System Software Administration Guide Version 3.2

13 Connecting to a Remote Console
This chapter addresses the following topics:
• “Console Management Facility” (page 157)
• “Accessing a Remote Console” (page 157)
13.1 Console Management Facility
The Console Management Facility (CMF) daemon collects and stores console output for all other
nodes on the system. This information is stored individually for every node and is backed up
periodically. This information is stored under dated directories in the
/hptc_cluster/adm/logs/cmf.dated/current directory.
The console command enables you to open a console session to any node in the HP XC system.
13.2 Accessing a Remote Console
Accessing the system console remotely has clear advantages; among these are the ability to
monitor the system and to correct problems from a remote location. The information in this
section describes how to establish a connection with the system console and introduces the
console commands.
The console port for each node in the HP XC system uses the cp- prefix. For example, the name
of the console port for the node n2 is cp-n2.
The following procedure shows how to establish a remote connection to the HP XC system
console:
1. Log in to the HP XC system. In this example, penguin is the LVS alias.
# ssh -l login-name penguin login-name
@penguin's password: password
$
2. Optionally determine the machine type of the node's console with the shownode command.
This example uses n16:
# shownode config nodes n16 | grep server_type
The response may be required to establish the correct keyword to exit the node's console
mode.
3. Log in to the specified node's console with the console command. This example uses n16:
$ console n16
escape character is '^]'
Trying 172.20.0.16...
Connected to n2
escape character is '^]'.
HP XC version as of date
NOTE: Take note of the escape character returned in the output of the console command.
You will use this character to exit.
4. Press the Enter key to obtain a prompt:
Enter
HP XC version as of date
n16 login:
5. Enter the user name and password for that node's console:
n16 login: username
passwd: password
13.1 Console Management Facility 157