It sounds like hibernation but it isn't exactly. Hibernation the ram is off loaded to the HDD and read back into ram on boot.
With this system your ram would be constant. You could pull the plug on your computer any time, and everything would still be there. It would start in the exact same state it was in before the power loss, no data loss, no corruption.
With this system your ram would be constant. You could pull the plug on your computer any time, and everything would still be there. It would start in the exact same state it was in before the power loss, no data loss, no corruption.