We usually store our photos, documents and more on a single hard disk – or, increasingly these days, a solid state drive (SSD) – but there’s always the nagging worry that the disk will fail, taking all your work and memories with it. Backing up using Time Machine, SuperDuper or CrashPlan are all good ways of reducing this risk, but there is another: RAID.
RAID can be complicated, but it’s extremely worthwhile – one of the things it can do is to mirror the contents of one disk completely to another, all the time. While cloning your hard disk using SuperDuper, for example, is something that might happen once a day, with a RAID system, every bit of data that’s written to one disk is simultaneously written to the second,…
