Acer PCI to Ultra SCSI RAID Controllers DAC960PG Bedienungsanleitung PDF herunterladen (Seite 60)

G-2 DAC960PG and DAC960PJ Installation Guide

Automatic Rebuild

Mylex controllers provide automatic rebuild capabilities in the event of a

physical disk drive failure. The controller performs a rebuild operation

automatically when a disk drive fails and both of the following conditions

are true:

A standby or hot spare disk drive of identical or larger size is found attached

to the same controller;

All system drives that are dependent on the failed disk drive are configured

as a redundant array: RAID 1, RAID 3, RAID 5, or RAID 0+1.

During the automatic rebuild process, system activity continues; however,

system performance may degrade slightly.

BBU

Battery Backup Unit, provides a battery backup for data currently stored in

the on-board cache memory during intermittent power loss to the controller.

In the event of a power failure, the BBU can hold data in the cache for a

certain amount of time. Once power is restored the data can be saved to a

disk.

BIOS

Basic Input/Output System, software that determines what a computer can

do without accessing programs. The BIOS contains all the code required to

control the keyboard, screen, drives, serial communications, and other

functions. Usually the BIOS is built into a ROM chip installed on the

motherboard so that the BIOS will always be available and not affected by

disk failure. Sometimes the BIOS is recorded on a flash memory chip.

BIOS Configuration Utility

BIOS-based Configuration Utility, a utility program sequence used, upon

powerup, for configuring various hardware elements in a system.

Booting (or Bootstrapping)

Loading operating system code and other basic software from a disk or other

storage device to help a computer start.

Burst Data Rate

The speed at which a specific amount of data is sent or received in

intermittent operations.

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Acer PCI to Ultra SCSI RAID Controllers DAC960PG Bedienungsanleitung Seite 60