Software RAID Plugin
mdadm
is a Linux utility to manage and monitor software RAID. The mdadm
monitoring plugin keeps track of failed disks in a RAID setup.
Reported Metrics
- Faulty
- Active
- Resync
- Read only
Dependencies
This plugin requires the mdstat
python plugin, you can install this by running the pip install mdstat
command.
To fetch the status, the plugin also needs sudo
access. Edit the /etc/sudoers
file and add the following at the end of the file:
agent360 ALL=(ALL) NOPASSWD: /usr/local/bin/mdjson
This assumes that mdjson
exists in /usr/local/bin/mdjson
. To verify its location, run the whereis mdjson
command.
Configure the plugin
To enable the plugin, edit the /etc/agent360-custom.ini
file and add the following lines:
[mdstat]
enabled = yes
Test the plugin
Run the sudo -u agent360 agent360 test mdstat
command to check if it's returning any data.
mdstat:
{
"md0":
{
"active": 1,
"faulty": 0,
"read_only": 0,
"resync": 0
},
"md1":
{
"active": 1,
"faulty": 0,
"read_only": 0,
"resync": 0
},
"md2":
{"active": 1,
"faulty": 0,
"read_only": 0,
"resync": 0
}
}
Now you can restart the agent with the service agent360 restart
command.
Create charts
Click on the Metrics link on the top menu, and then select mdstat
as metric type and active/faulty/read_only/resync
as the metric. Choose the servers you would like to graph and save it to your Dashboard.
You can create an alert for when the faulty metric is higher than zero, indicating that a server has a bad drive.
Updated 4 months ago