NEC Express5800/320Fd-LR User Manual page 301

Active Upgrade Process
The Active Upgrade process involves the following basic steps:
1. You prepare your system to ensure it meets the prerequisites of the Active
Upgrade process.
2. You use the Active Upgrade Console to select the disks that will be affected
by the software upgrade and to provide information about any applications or
services that require special handling during the upgrade process.
3. You run a readiness check in the Active Upgrade Console to verify that
your system meets the prerequisites for the Active Upgrade process.
4. You start the upgrade process by initiating split mode, which divides the
fault-tolerant, duplexed system (Figure 1) into two independent,
simplexed systems (Figure 2) — a Production Side, which continues to
run your applications, and an Upgrade Side, on which you can run
software installation packages.
Figure 1 Duplexed System
Installing and Using Utilities 5-83