RAID-5 (striping with distributed parity) volume layout offers the following:

• Groups n disks as one large virtual disk with a capacity of (n-1) disks.

• Redundant information (parity) is alternately stored on all disks.

• When a disk fails, the virtual disk still works. The data is reconstructed from the surviving disks and the parity alternately stored on the disks. You need to replace the failed disk to restore fault tolerance.

• Better read performance, but slower write performance.