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Advanced raid features, Advanced raid features 1-8 – Adaptec SATA AND SCSI RAID CONTROLLERS User Manual

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1-8

Introduction

Advanced RAID Features

Adaptec RAID controllers support the following advanced features:

Optimized Disk Utilization

—Allows you to use the full capacity

of all your drives, even if drive sizes vary.

SATA/SCSI Disk Hot Plug

—Allows you to add and remove

disks without shutting down your system.

Online Capacity Expansion

Array Level Migration

Drive Enclosures – SCSI only

Hotspares

Audible Alarm

Automatic Failover

Adaptec Battery Backup Module

Online Capacity Expansion

These Adaptec RAID controllers support Online Capacity
Expansion (OCE) of existing arrays for all operating systems. With
OCE, you can add new members to increase the capacity of an
array without losing any data. For details, refer to the Adaptec
Storage Manager online Help.

Windows OCE allows you to use the additional capacity without
restarting the system. For details, refer to your Windows
documentation.

Array Level Migration

Adaptec RAID controllers support migration from one array level,
or type, to another provided your controller supports the new array
type. The migration possibilities are described in the table below.

For details, refer to the Adaptec Storage Manager online Help.

Current Array Type

New Array Type

RAID 0

RAID 5 or 10

RAID 1

RAID 0 or 5 or 10

RAID 5

RAID 0 or 10

RAID 10

RAID 0 or 5