Not much simpler. Replacing my disk as described above was literally 4 commands from bash. And zero reboots.<p>And less error prone? Are you joking? In a non-mirror system you have to re-partition and set everything up the way it was, you have to really hope you copy things back correctly (do you have a bunch of hard links? Does cp copy them correctly? What&#x27;s that option to rsync again? Do you have enough memory to copy hard links correctly? Are xattrs going to copy correctly?). Sigh. On top of that all you can&#x27;t actually use that disk while any of this is happening. Grrr, and it&#x27;s going to take 11 hours to copy 5 TB of data back (at 125MB&#x2F;s)! If you&#x27;re perfectly happy with your computer being out of commission for 11 hours, be my guest.<p>Also, when the old disk is removed from the mirror set, it&#x27;s a complete image copy of the data. I&#x27;m not sure why you think that isn&#x27;t the case...<p>Seriously, making every disk in your computer a mirror set is really a phenomenal idea. I&#x27;ve been doing it for years now and every time I have to upgrade or replace a disk it&#x27;s made it heavenly. You shouldn&#x27;t pooh pooh it until you&#x27;ve actually tried it.