Intel ZT 4901 manual High-Availability Software Approach, Host Application

Models: ZT 4901

1 136
Download 136 pages 35.65 Kb
Page 18
Image 18

Introduction

Figure 4. High-Availability System Backplane Architecture

1A

2

3

4

5

6

7

8

13

14

15

16

17

18

19

20

21

1B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Host Processor Board

 

 

Bridge Mezzanine Board

 

 

 

Bridge Mezzanine Board

 

 

Redundant Host Processor Board

2.3High-Availability Software Approach

As shown in the Figure 1, “High-Availability CPU Architecture” on page 11, there are three High- Availability software components:

Host application

System Management

Backplane Device Drivers

2.3.1Host Application

The host application serves as the central control mechanism for the platform. For a host application to function in an RH environment it must be able to relinquish or receive control of the system in a controlled manner. Dynamically transitioning of bus segment ownership between active and backup requires the application to maintain data synchronization between the applications on the redundant Hosts.

18

High Availability Software for the Intel® NetStructureTM ZT 4901 Technical Product Specification

Page 18
Image 18
Intel ZT 4901 manual High-Availability Software Approach, Host Application