pmset is a command line utility for managing power settings in macOS. This is a good introduction1.
Listing current power management settings
pmset -g
Hibernate Modes
the hibernatemode setting can be configured with 3 typical integer values2:
| value | description |
|---|---|
| 0 | no backup of memory to disk, state will be lost on powerloss (desktop setting) |
| 3 | safe sleep (default for laptops) - copy memory to disk, keep memory powered |
| 25 | hibernate - store memory to disk, do not keep memory powered |
References
1.
Oakley, H. Power Management in detail: Using pmset. at https://eclecticlight.co/2017/01/20/power-management-in-detail-using-pmset/ (2017).