I’ve always wondered how long a hard disk’s life is if you left it on 24 hours a day (which I do with some of my server computers).
Well on average, according to this site,
The average service life of a hard disk is usually given as “5 years or 20,000 hours.” This means if a hard disk operates 24 hours a day, you will need to replace your drive with a new one every 1.5 to 2 years. (For specification details, refer to your hard disk drive’s user manual.) The measure