Hard rive failure are common to all computer, PC or Apple, as they use the same hard drive components. Auromatic back up is critical. I had a time capsule for many years and switch to a DROBO drive becaused I needed more memory. Best system ever, I have three iMacs and a laptop on automatic back up and can add hard drives as needed. Each piece of information is automatically on two separate hard drive of the DROBO system for added safety.
Bruce
Bruce