30. RAID Level 0, 1, 2

• Raid Level 0 uses two or more disks, and the data is striped across the disk in block size chunks

• Raid Level 1 uses two or more disks and mirror the data. Both disks contain the same allocated data

• Raid Level 2 are rare and use error correcting codes to fix any incorrect data when it is read

  • In level 2 the data is striped across many disks and additional disks contain the error correcting code values