0 RAID

RAID 0
This array is mostly used by users who pay more for high performance computing. The adage that says “two heads are better than one” holds true for this set-up. It allows but offers no mirroring or redundancy in the process. The increased performance is made possible with the way data are stored and split into several disks in the array. This works wonders for those on the look out for speeding up the read and write computing functionality.

RAID 1

This set-up offers no striping but allows mirroring in the process. As data are identically written on various disks in the array, there is a very slim chance of losing any data even if the other disks fail in the process. However, performance is a little bit compromised compared to RAID0 array as the write process to a single disk may take a bit more time compared to having them split into several disks.

RAID 2

It is implemented by splitting data at the bit level and spreading it over designated data disks and redundancy disks. The redundant bits are calculated using Hamming codes, a form of error correcting code (ECC).

RAID 3

This array is set-up where striping is on a byte-level and with dedicated parity disk. This means that every file is split up amongst the striped drives equally, byte-by-byte, and this is what makes it exceptional because it allows reading of every byte simultaneously across different drives.