RAID - Level Overview
| RAID Levels | Implementation | Zero Channel | Backplane Array |
 
 

Different RAID Levels are optimized for three key elements - performance, capacity, and fault-tolerance - either by itself or in combination of the elements.  Some of the most common standardized RAID levels include RAID 0, 1, 0/1, or 5.

RAID Level

Description

Mininum Drives

Pro's

Con's

RAID 0

Data Striping - allows array access of data from multiple drives at once.  (No fault tolerance)

2

Highest Performance

No Fault Tolerance

RAID 1

Data Mirroring (Back up)

2

High Data Protection

Decreased Drive Capacity

RAID 0/1

RAID 0 and 1 combined

4

Highest Performance with High Data Protection

Some sacrifice is made in capacity

RAID 5

Data striping with distributed parity

3

Best cost / performance for multi- drive systems

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