OS Yosemite turns off the second HDD, how to keep it running?

Question

macOS

Hello everyone, I have 2 disks on my Mac, one SSD for the system and another HDD for memory, and so the SSD works fine and does not turn off when not needed, while the HDD turns off approximately every 20 minutes. That when you save something or go to the trash, the system turns on the disk. How to avoid this and make the HDD work all the time?

Answer 1

tyts

Answer 2

Good afternoon, look in the performance settings and the energy saving scheme, it seems that when it is idle, it turns it off as an unnecessary element.
Thank you!