IBM HMC SSH

Monitoring Connector Assets

Monitored Objects

The Monitoring Connector IBM HMC SSH collects metrics for:

• Hardware errors
• Led status

Collected Metrics

Hardware-errors

No metrics.

Led-status

Metric name	Description	Unit
physical status	Physical system attention led status
virtuallpar status	Logical partition system attention led status

Prerequisites

The centreon-engine user performs a SSH connection to a remote system user. This user must have enough privileges to run lssvcevents and lsled commands.

Setup

Online License

1. Install the Centreon Plugin on every Poller:

yum install centreon-plugin-Hardware-Servers-Ibm-Hmc-Ssh

2. On the Centreon Web interface in Configuration > Connectors > Monitoring Connectors, install the IBM HMC SSH Monitoring Connector

Offline License

1. Install the Centreon Plugin on every Poller:

yum install centreon-plugin-Hardware-Servers-Ibm-Hmc-Ssh

2. On the Centreon Central server, install the Centreon Monitoring Connector from the RPM:

yum install centreon-pack-hardware-servers-ibm-hmc-ssh

3. On the Centreon Web interface in Configuration > Connectors > Monitoring Connectors, install the IBM HMC SSH Monitoring Connector

Configuration

• Add a new Host and apply the HW-Server-IBM-Hmc-SSH-custom Host Template

3 SSH backends are available to connect to the remote server: sshcli, plink and libssh which are detailed below.

sshcli backend

Mandatory	Name	Description
X	SSHBACKEND	Name of the backend: sshcli
X	SSHUSERNAME	By default, it uses the user running process centengine on your Poller
	SSHPASSWORD	Cannot be used with backend. Only ssh key authentication
	SSHPORT	By default: 22
	SSHEXTRAOPTIONS	Customize it with your own if needed. E.g.: --ssh-priv-key=/user/.ssh/id_rsa

Warning With that backend, you have to validate the target server fingerprint manually (with the SSHUSERNAME used).

plink backend

Mandatory	Name	Description
X	SSHBACKEND	Name of the backend: plink
X	SSHUSERNAME	By default, it uses the user running process centengine on your Poller
	SSHPASSWORD	Can be used. If not set, SSH key authentication is used
	SSHPORT	By default: 22
	SSHEXTRAOPTIONS	Customize it with your own if needed. E.g.: --ssh-priv-key=/user/.ssh/id_rsa

Warning With that backend, you have to validate the target server fingerprint manually (with the SSHUSERNAME used).

libssh backend (default)

Mandatory	Name	Description
X	SSHBACKEND	Name of the backend: libssh
X	SSHUSERNAME	By default, it uses the user running process centengine on your Poller
	SSHPASSWORD	Can be used. If not set, SSH key authentication is used
	SSHPORT	By default: 22
	SSHEXTRAOPTIONS	Customize it with your own if needed. E.g.: --ssh-priv-key=/user/.ssh/id_rsa

With that backend, you do not have to validate the target server fingerprint manually.

FAQ

How to test the Plugin and what are the main options for?

Once the plugin installed, log into your Centreon Poller CLI using the centreon-engine user account and test the Plugin by running the following command:

/usr/lib/centreon/plugins/centreon_ibm_hmc_ssh.pl \
    --plugin=hardware::server::ibm::hmc::ssh::plugin \
    --mode=led-status \
    --hostname=10.30.2.114 \
    --ssh-username=centreon \
    --ssh-password='centreon-password' \
    --ssh-backend=libssh \
    --verbose

Expected command output is shown below:

OK: System 'Server-8203-E4Z-SNE6DFXA5' physical led state : off - All virtual partition status are ok |
System 'Server-8203-E4Z-SNE6DFXA5' physical led state : off
Virtual partition 'Server-8203-E4Z-SNE6DFXA5:LPAR1' led state : off
Virtual partition 'Server-8203-E4Z-SNE6DFXA5:LPAR2' led state : off

The command above gets the led status of IBM HMC (--mode=led-status). It uses a SSH username centreon (--ssh-username=centreon), a SSH password centreon-password (--ssh-password='centreon-password'), uses a SSH backend libssh (--ssh-backend='libssh') and it connects to the host 10.30.2.114 (--hostname=10.30.2.114) on the SSH default port 22 (--ssh-port=22).

All the options as well as all the available thresholds can be displayed by adding the --help parameter to the command:

/usr/lib/centreon/plugins/centreon_ibm_hmc_ssh.pl \
    --plugin=hardware::server::ibm::hmc::ssh::plugin \
    --mode=led-status \
    --help

Troubleshooting

I have that error message: UNKNOWN: Command error: Host key verification failed.. What does it mean ?

It means you haven't manually validated the target server fingerprint with ssh or plink on the Centreon Poller.