Package: prometheus-node-exporter Version: 0.16.0+ds-2 Severity: normal Release 0.16.0+ds-2 of prometheus-node-exporter introduces a regression in which, as long as the package is installed in the machine, drives that are in stand by mode (i.e. spun down) will be woken up every 15 minutes.
This is unsurprising because this release introduces a new scheduled job that runs smartmon.sh every 15 minutes, and smartmon.sh will happily wake up hard drives to check on them (it does not pass the --nocheck=standby option to smartctl). The clean fix would be to make smartmon.sh pass the --nocheck=standby option to smartctl. A more immediate workaround is to disable the feature entirely: # systemctl disable prometheus-node-exporter-smartmon.timer