EasyRAID E6 Guia do Utilizador descarregar pdf (Página 16)

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Introduction

RAID Level 3 technology use a dedicated parity disk to store

redundant information about the data on several data disks.

RAID Level 3 is an excellent choice for applications which require

single stream I/O with a high data transfer rate.

RAID Level 3 is optimal for applications in which large block of

sequential data must be transferred quickly, these applications are

usually of one of these types :

They operate on large data objects such as graphical image

processing, CAD/CAM files, and others.

They are non-interactive applications that process large data

sequentially.

They usually request a large amount of data (32KBytes or more) with

each I/O request.

RAID Level 3 :

" Parallel Transfer Disks with Parity "

High Data Reliability & Highest Transfer Capacity

Disk 1 Disk 2 Disk 3 Disk 4 Disk 5 Disk 6

Physical

Data

Disk Array Controller

Array Management Software

Provides Logical to Physical Mapping

P : Parity

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 84 85

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