HP A7143A RAID160 SA Controller Support Guide

RAID Technology Overview
Logical Drives and Arrays
Chapter 116
The read/write heads of all of the physical disks in a logical drive are
active simultaneously, improving input/output (I/O) performance and
reducing the total time required for data transfer (see Figure 1-2).
Figure 1-2 Physical Disks Configured into a Logical Drive (L1)
L1
P1 P2 P3