Basic RAID Levels

1. RAID 0 (striping)

  - minimum of 1 disks

  - striping

  - no mirroring

  - excellent performance

  - no fault tolerance

2. RAID 1 (mirroring)

  - minimum of 2 disks

  - mirroring

  - no striping

  - good performance

  - excellent fault tolerance

3. RAID 5 (striping with + distributed parity)

  - minimum of 3 disks

  - striping with distributed parity

  - good performance and fault tolerance

4. RAID 10 (mirroring + striping)

  - minimum of 4 disk

  - striping with mirroring

  - excellent performance and fault tolerance

  - expensive