**R**edundant **A**rray of **I**ndependent **D**isks
## Some recorrent terms when defining a RAID system:
**PARITY:**
: Refers to ==parity bit==, it's a bit added to a string that says if the sum of bits in the string is even/odd, it's a simple form of error checking. Commonly the parity bit is added in the end of each byte (8 bits).
**PARITY**
: Refers to *parity bit*, it's a bit added to a string that says if the sum of bits in the string is even/odd, it's a simple form of error checking. Commonly the parity bit is added in the end of each byte (8 bits).
## RAID0
RAID0 splits data across a multiple-disks array. The ideal setup is equaly-sized disks since the total storage used in a RAID0 arrangement is equal to the lower storage disk space times the total amount of disks. I a array of one 120Gb disk and one 360Gb disk, the total storage available would be 240 Gb.
RAID0 create stripes of data so disk operations are n-times faster, n being the total amount of disks available. It also distributes I/O costs between all disks making it a very fast storage system. RAID0 **doesn't implements parity** or even any **fault tolerance**, so the failure of one single disk in the array will result in total data loss.
Besides fastness, RAID0 also is a good system to create large amounts of data storage units with lesser disks, since all disks in the array have unique information and, having equaly-sized units, uses 100% it's fisical capability as storage.
>RAID0 splits data across a multiple-disks array. The ideal setup is equaly-sized disks since the total storage used in a RAID0 arrangement is equal to the lower storage disk space times the total amount of disks. I a array of one 120Gb disk and one 360Gb disk, the total storage available would be 240 Gb.
>
>RAID0 create stripes of data so disk operations are n-times faster, n being the total amount of disks available. It also distributes I/O costs between all disks making it a very fast storage system. RAID0 **doesn't implements parity** or even any **fault tolerance**, so the failure of one single disk in the array will result in total data loss.
>
>Besides fastness, RAID0 also is a good system to create large amounts of data storage units with lesser disks, since all disks in the array have unique information and, having equaly-sized units, uses 100% it's fisical capability as storage.
