Glances provides a tremendous amount of data from a server, including recently reporting on the status of hard drives from SMART monitoring. This monitoring is crucial for getting signs that a drive is about to fail, and can be used to avoid catastrophic data losses at the worst, or significant downtime at the least.
However, the HA integration does not provide this sensor as an entity, at least according to the docs or the list of available entities in my integration. Adding the sensor would be natural for home automation, especially if you have a data or media server.
Enabling SMART monitoring on your instance of glances can be done by using the ‘–enable-plugin smart’ when running. Reportedly it works on all systems but MacOS. I can confirm that it works on linux.