Thanks!
In this article:
article on sleep modes
They describe using the command:
pmset -g | grep hibernatemode
That command will return one of following answers according to article:
When i run this command i get reply "3".
- hibernatemode 0: normal sleep; this is the default setting if you're using a desktop computer.
- hibernatemode 1: hibernate mode; this is the default for pre-2005 laptops.
- hibernatemode 3: safe sleep; this is the default for laptops made after 2005.
- hibernatemode 25: hibernate mode; the setting used for post-2005) laptops.
Does that mean that my machine will work just as it does today if i change the SSD for another NVME SSD?
Its confusing, because some places like this article:
article on sleep
They only mention 3 modes, not the 25 mode.
Will my machine be able to sit with no charger for 1-2 days after i swap to NVME SSD? Since i am already in the hibernation mode 3.
thanks for very good explanations, and fast replies, i really appreciate this!
- 0 - Old style sleep mode, with RAM powered on while sleeping, safe sleep disabled, and super-fast wake.
- 1 - Hibernation mode, with RAM contents written to disk, system totally shut down while “sleeping,” and slower wake up, due to reading the contents of RAM off the hard drive.
- 3 - The default mode on machines introduced since about fall 2005. RAM is powered on while sleeping, but RAM contents are also written to disk before sleeping. In the event of total power loss, the system enters hibernation mode automatically.
- 5 - This is the same as mode 1, but it’s for those using secure virtual memory (in System Preferences -> Security).
- 7 - This is the same as mode 3, but it’s for those using secure virtual memory.
I believe that hibernate mode 25 is not mentioned too often because it is not a default setting in macOS and needs to be enabled in terminal.