ELI5: Explain Like I'm 5

Disk mirroring

Okay, so you know how when you draw something on a piece of paper, you can make a copy by writing it on another piece of paper at the same time? That's kind of like what disk mirroring is.

When we talk about disks, we mean the part of the computer that stores all your important files and information. Sometimes, people worry that something bad might happen to their disk, like it might break or get a nasty virus, and then they'll lose all their stuff.

Disk mirroring helps prevent that from happening by making a copy of everything on the disk and storing it somewhere else at the same time. This way, if something happens to the original disk, there's still another version of everything that we can use.

Think of it like having two toy boxes, one that's your main toy box and another that's just like it. Every time you get a new toy, you put it in both boxes at the same time. If one box breaks or someone messes it up, you still have all your toys in the other box.

This is important for businesses and organizations that really rely on their computer systems to do their work. They don't want to risk losing everything if something goes wrong, so they use disk mirroring to make sure they always have a backup. It's like having a spare tire in case one of your tires blows out while driving.

Overall, disk mirroring is a way to protect important information and make sure we always have a backup just in case anything bad happens.