I have an external usb hard drive on which I clone my mac's hard drive. I have it on a clock timer. It turns on about 30 min. before the backup process starts and turns off roughly 30 min. after the backup process has completed.
I always thought that I was prolonging the life span and reducing the risk of data corruption of my drive with this course of action. However I was wondering if this is the best practice. I heard somewhere (can't remember where) that external usb drives don't "suffer" under being on standby all the time - it actually is better for them and the stored data.
What is the best practice on this topic? Can I read up on this somewhere? Googling did not really help.
PS: please omit any power conservation aspects - I realize that using less power is better. :-)