NEC 320Fc, User Manual

Page: 13 / 120

Overview 1-1
Chapter 1
Overview
1-
Active Upgrade™ technology allows you to upgrade system and application software
on an Express5800/320
Fc system with minimal downtime.
Instead of taking your system offline to run upgrade procedures, you can use Active
Upgrade technology to split the system into two independently running systems, one
side of which you upgrade while the other side continues to run your applications
without interruption.
To learn more about Active Upgrade technology, see the following topics:
•
“Features”
•
“Overview of the Active Upgrade Process” on page 1-2
•
“Active Upgrade State Model” on page 1-9
N O T E
For the latest information about Active Upgrade
technology, including any issues that were discovered
after this release, see the
Express5800/320 Fc : Active
Upgrade User’s Guide online at
http://su p port.necam.com/servers/ ft
Features
Active Upgrade technology allows you to do the following:
•
Install software updates with minimal disruption to your critical applications.
Your business-critical applications continue to run on one side of the system while
you install software on, and even restart, the other side. There is only a brief
disruption when you are finished installing updates, as your critical applications are
restarted on the upgraded software.