1. Bundled Software for the Server
Express5800/R320c-E4, R320c-M4, R320d-E4, R320d-M4 Installation Guide (Windows Server 2008)
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Chapter 2 Installing Bundled Software
(a) Splitting the system
You start the upgrade process by initiating split mode, which divides the fault-tolerant, duplexed system into two
independent, simplexed systems — a Production Side, which continues to run your applications, and an
Upgrade Side, on which you can run software installation packages. If there are any problems during upgrade,
you can abort the upgrade to return the system to its original state.
Duplexed System
Splitting the System
System
Data
System
Data
Internal storage
Production Side (Live)
Network
External
storage
No remote connection
Mirroring
canceled
Console
Duplexed system
Upgrade Side (Isolated)
Remote connection
Remote
connection
Install software
System
System
Data
Data
Internal storage
Console
Network
External
storage
Duplexed system
Mirror