I've a Synology NAS with 2 WD Red hard drives. I've enabled the hibernation for the drives, so they stop after 20 minutes inactivity.  

However, we use the NAS a lot and the disks get powered up very frequently. I was wondering if hibernation could cause earlier failure of the drives in the situation, and if I should disable it. I understand hibernation saves energy, but I care about the integrity of my data more.  
Thank you!