# MegaRAID controller monitoring with Netdata Collects adapter, physical drives and battery stats using `megacli` command-line tool. Executed commands: - `sudo -n megacli -LDPDInfo -aAll` - `sudo -n megacli -AdpBbuCmd -a0` ## Requirements The module uses `megacli`, which can only be executed by `root`. It uses `sudo` and assumes that it is configured such that the `netdata` user can execute `megacli` as root without a password. - Add to your `/etc/sudoers` file: `which megacli` shows the full path to the binary. ```bash netdata ALL=(root) NOPASSWD: /path/to/megacli ``` - Reset Netdata's systemd unit [CapabilityBoundingSet](https://www.freedesktop.org/software/systemd/man/systemd.exec.html#Capabilities) (Linux distributions with systemd) The default CapabilityBoundingSet doesn't allow using `sudo`, and is quite strict in general. Resetting is not optimal, but a next-best solution given the inability to execute `megacli` using `sudo`. As the `root` user, do the following: ```cmd mkdir /etc/systemd/system/netdata.service.d echo -e '[Service]\nCapabilityBoundingSet=~' | tee /etc/systemd/system/netdata.service.d/unset-capability-bounding-set.conf systemctl daemon-reload systemctl restart netdata.service ``` ## Charts - Adapter State - Physical Drives Media Errors - Physical Drives Predictive Failures - Battery Relative State of Charge - Battery Cycle Count ## Enable the collector The `megacli` collector is disabled by default. To enable it, use `edit-config` from the Netdata [config directory](/docs/configure/nodes.md), which is typically at `/etc/netdata`, to edit the `python.d.conf` file. ```bash cd /etc/netdata # Replace this path with your Netdata config directory, if different sudo ./edit-config python.d.conf ``` Change the value of the `megacli` setting to `yes`. Save the file and restart the Netdata Agent with `sudo systemctl restart netdata`, or the appropriate method for your system. ## Configuration Edit the `python.d/megacli.conf` configuration file using `edit-config` from the Netdata [config directory](/docs/configure/nodes.md), which is typically at `/etc/netdata`. ```bash cd /etc/netdata # Replace this path with your Netdata config directory, if different sudo ./edit-config python.d/megacli.conf ``` Battery stats disabled by default. To enable them, modify `megacli.conf`. ```yaml do_battery: yes ``` --- [](<>)