Creating a RAID
In this recipe, you'll learn how to configure a redundant array of disks (RAID). Configuring an array of disks to provide redundant storage is an excellent way to protect your data from drive failures. For example, if your data resides on a single disk and that drive fails, then the data is lost. You'll have to replace the drive and restore the data from your latest backup. But if two disks are in a RAID-1 configuration, your data is mirrored and can still be accessed from the working drive when the other fails. The failure doesn't impact access to the data and you can replace the faulty drive at a more convenient time.
This recipe requires a working CentOS system and elevated privileges. It assumes that at least two ...