HP LH4r Installation and configuration of the HP NetRAID, NetRAID-1 and NetRAI - Page 21

RAID Overview

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2 RAID Overview This chapter summarizes concepts and terminology used to describe RAID systems. It describes the different RAID levels available with the HP NetRAID Series adapters. For definitions of terms not introduced here, see the Glossary. RAID Overview HP NetRAID Series adapters let you link multiple hard disk drives together and write data across them as if they were one large drive. With the HP NetRAID Series adapter, you can configure your linked drives into a RAID (Redundant Array of Independent Disks) subsystem. Physical Drive The term "physical drive" refers to a single hard disk module. Figure 2-1. Physical Drive Arrays HP NetRAID Series adapters can combine up to eight physical drives into one array. It is recommended that all drives in an array have the same capacity. If you use drives with different capacities in an array, all the drives in the array are treated as though they have the capacity of the smallest drive. Figure 2-2. Array of Physical Drives 13

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13
2
RAID Overview
This chapter summarizes concepts and terminology used to describe RAID
systems. It describes the different RAID levels available with the HP NetRAID
Series adapters. For definitions of terms not introduced here, see the Glossary.
RAID Overview
HP NetRAID Series adapters let you link multiple hard disk drives together and
write data across them as if they were one large drive. With the HP NetRAID
Series adapter, you can configure your linked drives into a RAID (Redundant
Array of Independent Disks) subsystem.
Physical Drive
The term "physical drive" refers to a single hard disk module.
Figure 2-1. Physical Drive
Arrays
HP NetRAID Series adapters can combine up to eight physical drives into one
array. It is recommended that all drives in an array have the same capacity. If you
use drives with different capacities in an array, all the drives in the array are
treated as though they have the capacity of the smallest drive.
Figure 2-2. Array of Physical Drives