beautypg.com

Integrated striping example, Integrated striping - logical and physical views – Asus LSI SAS3442X-R User Manual

Page 39

background image

IS Description

4-3

Version 1.1

Copyright © 2006, 2007 by LSI Logic Corporation. All rights reserved.

Figure 4.1

Integrated Striping Example

Figure 4.2

shows a logical view and a physical view of Integrated Striping

configuration.

Figure 4.2

Integrated Striping - Logical and Physical Views

The primary advantage of IS is speed, because it transfers data to or
from multiple disks at once. However, there is no data redundancy;
therefore, if one disk fails, that data is lost.

LSI

Disk 1

Disk 3

Disk 4

Disk 2

Segment 1
Segment 5
Segment 9

Segment 2
Segment 6

Segment 10

Segment 3
Segment 7

Segment 11

Segment 4
Segment 8

Segment 12

SAS

Fusion-MPT

Controller

Stripe 1

Stripe 2

Stripe 3

Stripe N

Stripe 1

Stripe 4

Stripe 7

Stripe N-2

+

Stripe 2

Stripe 5

Stripe 8

Stripe N-1

+

Stripe 3

Stripe 6

Stripe 9

Stripe N

Logical View

Physical View