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Introduction

1-4

Understanding RAID Concepts and Terminology

The following concepts and terminology is commonly used when describing the

functions of the RocketRAID 3xxx 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 3xxx (see legacy disk below).

Array initialization

A redundant array (RAID5, RAID1, RAID10, RAID50/6) needs to be initialized to

ensure full performance and reliability. Non-redundant arrays (RAID0, JBOD) do not

need to be initialized.

When you create a redundant array using the RocketRAID 3xxx controller’s BIOS

Configuration Utility, it will automatically start the initialization process. When

creating an array using the HighPoint RAID Management Console software, you can

specify an initialization option (Skip initialization, foreground and background).

Online Capacity Expansion (OCE)

This feature allows disks to be added to existing RAID arrays, in order to increase the

array’s capacity, without fear of data loss. Any number of disks can be added to an

array, at any time. Data can be accessed and utilized even while being redistributed.

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Highpoint RocketRAID 3510 Guía de usuario Pagina 9