Understanding raid concepts and terminology – HighPoint RocketRAID 2340 User Manual

Page 7

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Introduction

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Understanding RAID Concepts and Terminology

The following concepts and terminology is commonly used when describing the
functions of the RocketRAID 2340 Host Adapter.

Disk initialization

Initializing a disk writes necessary RAID configuration information to that disk. Disks
must be initialized before configuring them into RAID arrays. The initialization
process will destroy all data on the disk.

Disk Status

New

The disk contains no data and has not been initialized.

Initialized

The disk has been initialized and can be used for array creation.

Configured

The disk has been assigned to one or more arrays, or configured as a
spare disk.

Legacy

The disk was used on other controllers before use with the
RocketRAID 2340 (see legacy disk below).

Array initialization

A redundant array (RAID 5, RAID 1, RAID 10, RAID 50) needs to be initialized to
ensure full performance and reliability. Non-redundant arrays (RAID 0, JBOD) do not
need to be initialized.

When you create a redundant array using the RocketRAID 2340 controller’s BIOS
Configuration Utility, it will create the array in un-initialized state. The initialization
process can be completed after installing the driver and management software.

When creating an array using the HighPoint RAID Management Console software,
you can specify an initialization option (Skip initialization, foreground and
background).

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