Home | Contents | Help   Raidhelp     Defining RAID Level 2 (Mainly obsolete) RAID Level 2 is one of two parallel access arrays defined in the Berkeley Papers. It has not been widely deployed in industry because of its use of non-standard disk drives. Since drive production volumes dictate cost, it is more economical to use standard disks for RAID disk systems. This benefits both system integrators and users who would have to pay higher prices for non-standard disks. In other words don't bother with this level too much as no one actually uses it. RAID 2 offers 'on-the-fly' error correction and extremely high data transfer rates are possible. It has a relatively simple control design. However, the very high ratio of ECC disks to data disks combined with small word sizes make this solution very inefficient. Entry level costs are also comparatively high to due to the same reason. Transaction rates can be as low as that of a single drive. Next: Level 3 Related topics: Defining RAID Levels Understanding Parity   Raidhelp   RAIDhelp© Copyright 1999-2004 Antony Kershaw