HP Compaq dx5150 MT Guia de preparacion descargar pdf (Pagina 5)

Installation and Setup Guide www.hp.com 1

HP dx5150 RAID Installation

and Setup Guide

Introduction

RAID (Redundant Array of Independent Disks) technology

manages multiple disk drives to enhance I/O performance and to

provide redundancy in order to withstand the failure of any

individual member without loss of data.

SATARAID™ provides two RAID Set types: Striped Set (RAID

0) and Mirrored Set (RAID 1).

Disk Mirroring (RAID 1)

Disk mirroring creates an identical twin for a selected disk by

writing the data simultaneously to two disks. This redundancy

provides protection from a single disk failure. If a read failure

occurs on one drive, the system then reads the data from the other

drive.

Disk Striping (RAID 0)

Striping is a performance-oriented, non-redundant data mapping

technique. It does not provide fault tolerance. With modern

SATA and ATA bus mastering technology, multiple I/O

operations can be performed in parallel, enhancing performance.

Striping arrays use multiple disks to form a larger virtual disk.

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HP Compaq dx5150 MT Guia de preparacion Pagina 5