RAID 0+1: Striped Set + Mirrored Set (4 disk minimum; Even number of disks) provides fault tolerance and improved performance but increases COMPLEXITY. Array continues to operate with one FAILED drive. The key difference from RAID 1+0 is that RAID 0+1 creates a second striped set to MIRROR a primary striped set, and as a result can only sustain a maximum of a single disk LOSS, whereas 1+0 can sustain multiple drive losses as long as no two drive loss COMPRISE a single pair.

RAID 1+0: Mirrored Set + Striped Set (4 disk minimum; Even number of disks) provides fault tolerance and improved performance but increases complexity. Array continues to operate with one or more failed drives. The key difference from RAID 0+1 is that RAID 1+0 creates a striped set from a series of mirrored drives.

RAID 0+1: Striped Set + Mirrored Set (4 disk minimum; Even number of disks) provides fault tolerance and improved performance but increases complexity. Array continues to operate with one failed drive. The key difference from RAID 1+0 is that RAID 0+1 creates a second striped set to mirror a primary striped set, and as a result can only sustain a maximum of a single disk loss, whereas 1+0 can sustain multiple drive losses as long as no two drive loss comprise a single pair.

RAID 1+0: Mirrored Set + Striped Set (4 disk minimum; Even number of disks) provides fault tolerance and improved performance but increases complexity. Array continues to operate with one or more failed drives. The key difference from RAID 0+1 is that RAID 1+0 creates a striped set from a series of mirrored drives.