This RAID level mirrors the data across both or all drives in the array, meaning if one drive fails, the data across the other drive(s) in the array will be intact. RAID 1, or mirroring, offers data protection, or redundancy, to the user.

But if you’re backing up regularly, this might be a risk you’re willing to take to get a high-capacity, faster storage unit. Essentially, the number of drives you have increases the likelihood of data loss if you have four drives in a RAID 0 array, you’ll be four times more likely to lose your data. Data is striped across all disks in the array, so if one drive fails, you lose all of the data. However, there is a major downside to this RAID level – data protection. Because all of the read/write heads are working together in tandem, speeds are much faster, too. Effectively, you have a drive that is the sum of its parts a RAID 0 array with two 2TB hard disk drives will give you a 4TB drive. This RAID level turns two or more drives into one single drive, with a higher capacity and faster speeds. RAID 0, or striping, is RAID in perhaps its purest form.

Crucially, RAID is more than simply “just a bunch of disks” (JBOD). All of this is kept ticking along by the RAID controller, which can come in the form of a RAID controller card or maybe software-based. RAID can provide a mix of speed, capacity and data redundancy (which protects your data). RAID, or Redundant Array of Independent Disks, puts two or more hard disk drives together to become a single drive with different improvements depending on the configuration, or RAID level. Here, we go over the differences between the two RAID levels and what this means for RAID data recovery. RAID 0 and 1 are two of the most commonly used RAID levels, and the most basic, too.

Raid 1 recovery software