One of the main questions when talking about storage is “What is RAID”? Well, it stands for “Redundant Array of Inexpensive Disks and can be very handy when wanting clear backups of storage drives, including your OS drive. But why bother? RAID can be used for a number of reasons such as squeezing out extra performance, offering redundancy to your data and even parity; parity is what rebuilds data which is potentially lost, thus offering an extra level of protection from data loss.
Remember the days when having a 1 terabyte hard drive was exciting? Well, Seagate has announced a new 3.5-inch drive that can hold 8 terabytes of your data, and with an affordable price tag to boot. It’ll cost just $260, which means you’re paying about 3 pennies per gigabyte.
RAID 10 is not the same as RAID 01.This article explains the difference between the two with a simple diagram.I’m going to keep this explanation very simple for you to understand the basic concepts well. In the following diagrams A, B, C, D, E and F represents blocks.