macOS automatically sends a signal to internal HDDs (on older Macs ... Never will do as it says—macOS never attempts to spin a drive down. ・On a Mac desktop, go to System Settings > Energy.
With these considerations in mind, let's explore how you can use your internal storage drive as the backup location ... back up your files locally on your Mac using Time Machine.
While this is a good idea in theory, the tool went into a continuous loop of being unable to mount my M2 Mac internal and external drives. I allowed this process to run overnight, and when I woke ...