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| monitoring:observium:check-raidcontroller-state [2025/02/07 12:27] – removed - external edit (Unknown date) 127.0.0.1 | monitoring:observium:check-raidcontroller-state [2025/02/07 12:27] (current) – ↷ Page name changed from monitoring:observium:check-hardware-raid-state to monitoring:observium:check-raidcontroller-state Zyzonix |
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| | ====== Check Raid-Controller state with Observium (LSI/Adaptec) ====== |
| |
| | //Both methods have been tested on Debian.// |
| | |
| | To monitor a **RAID-Controller** (not the RAID-State) with Observium the Observium-Agent can be used: |
| | - Firstly install Observium's Agent by using this script: [[https://github.com/Zyzonix/attic/blob/main/observium/observium-agent-quick-install.sh|github.com/Zyzonix/attic - observium-agent-quick-install.sh]] |
| | - Then verify that the correct software for the RAID-Controller in use is installed. LSI: ''MegaCLI64'' and Adaptec ''arcconf'' is required. Verify a correct working of the software, otherwise the agent's module ''hdarray'' will not work. |
| | - Enable ''hdarray'': <code bash>ln -s /usr/lib/observium_agent/scripts-availabe/hdarray /usr/lib/observium_agent/scripts-availabe/.</code> |
| | - Restart the socket: <code bash>systemctl restart observium_agent.socket</code> |
| | - Finally add an Alert-Checker for ''Status'' with the following settings: **Conditions:** ''status_event noteuqals ok'' and associate it with ''Status entPhysicalClass equals controller''{{:monitoring:observium:observium_alert-check_raid-controller.png?1000|}} |
| | |
| | ----- |
| | ==== Other Method to monitor the RAID-state (insecure/outdated)==== |
| | //To use this method the enterprise version of Observium is required!// |
| | |
| | **Structure of this method:** Observium uses the ''check_by_ssh'' plugin from Nagios to connect to the remote machine via SSH. A special user with limited access will then execute the ''check_raid''-Plugin (also from Nagios) on the remote machine and will then send back the output to Observium. An alert checker can then check the RAID-state. |
| | |
| | **Setup:** |
| | - Firstly install ''monitoring-plugins-contrib'' on the remote machine and ''monitoring-plugins-basics'' on Observium. |
| | - Then add a user called ''observium'' on the remote machine and add him to the group ''ssh'': <code bash>sudo usermod -aG ssh observium</code> |
| | - Edit the ''/etc/sudoers'' file and allow ''observium'' to execute ''check_raid'', therefore add the following lines: <code bash># Add permission for knecht (used by Observium) to execute check_raid |
| | observium ALL= NOPASSWD: /usr/lib/nagios/plugins/check_raid </code> |
| | - Now allow password-less authentication by copying the SSH-keys from the observium machine to the remote machine: <code bash>ssh-copy-id -i .ssh/id_rsa.pub observium@<remote-ip></code> |
| | - By default the ''check_by_ssh'' plugin is disabled for Observium. Enable it by adding the following lines to ''/opt/observium/includes/definitions/entities/probes.inc.php'': <code bash>// Custom extension for remote checks |
| | $probe = 'check_by_ssh'; |
| | $config['probes'][$probe]['enable'] = 1; |
| | $config['probes'][$probe]['descr'] = 'Execute checks remotely via SSH'; |
| | // End of custom code</code> |
| | - Finally restart ''apache2'' |
| | - Now add a probe in Observium's webinterface with the following values: |
| | <WRAP 60%> |
| | ^ Config-Option ^ Value ^ |
| | | Device | Remote-Device | |
| | | Probe Type | ''check_by_ssh'' | |
| | | Description | ''RAID | <hostname>'' | |
| | | Extra arguments | <code bash>-H <hostname> -l observium -C '/usr/bin/sudo /usr/lib/nagios/plugins/check_raid'</code> | |
| | </WRAP> |
| | |
| | <callout type="warning" icon="true">**Check** ''/opt/observium/includes/definitions/entities/probes.inc.php'' **after each update to verify that ** ''check_by_ssh'' **is still enabled!**</callout> |