Zabbix drbd monitoring

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Monitoring the status of drbd with Zabbix.

Description

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I updated my old DRBD Monitoring template for zabbix to use drbdadm status instead of reading the contents of /proc/drbd. You can find the original blog post here: Torminal - Zabbix Template: Monitor health of DRBD .
The repository is now split in two versions, one for DRBD < version 9.x and a new for DRBD > version 9.x.

• older than Version 9.x: Github - zabbix-old-version
  • Shows warning if the primary DRBD host becomes secondary or the secondary goes offline.
  • The /proc/drbd file in the Linux system is read for this purpose.
• newer than version 9.x: Github - zabbix-new-version
  • Shows warning if:
    • Host is no longer Primary
    • Local disk is not UpToDate
    • Peer is not Secondary (connection problem)
    • Replication not established
  • Reads the content of the drbdadm status command.

Tested with:

• Zabbix Server 6 & Zabbix Server 7
• zabbix-agent2
• DRBD 8.x (on Debian 12 server)
• DRBD 9.x (on Debian 12 server)

Dependencies

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• Zabbix-Server
• Host with zabbix-agent2 and DRBD installed

Installing

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New Version, based on “drbdadm status”

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Example alerts:

On Zabbix frontend server:

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• Files can be found at Github - zabbix-new-version
• Download and import the template drbd9-status.yaml
• Assign the Template DRBD 9.x Status to the docker host(s) you want to monitor

On the DRBD Primary Node

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• Add the file drbd.conf in the zabbix-agent2 configuration path at /etc/zabbix/zabbix_agent2.d
• Restart zabbix-agent2 with systemctl restart zabbix-agent2

Now you should be able to get warnings in Zabbix. You can test it with switching primary and secondary node, you should get a warning after up to 10 minutes that says “Host is no longer Primary”.

Old Version, based on “/proc/drbd”

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On Zabbix frontend server:

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• Files can be found at Github - zabbix-old-version
• Download and import the template drbd-status.yaml
• Assign the Template DRBD Status to the docker host(s) you want to monitor

Conclusion

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The new version of the template now got a bunch of new warnings. Thanks to Lukáš Grygera, who commented on the old blog-post at told me about “drbdadm status”.
If you have more requests, issues with the template or anything else to tell me, feel free to leave a comment below (no registration required).