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Chapter 2 Installing Bundled Software
(c) Committing the Upgrade
When you are certain that the upgrade(s) were successful, you can commit the changes to make them
permanent.
When you commit the changes, the Active Upgrade Console resynchronizes the RDR disks in your system by
overwriting the original Production Side system disk and stale Upgrade Side data disks with their partner disks,
which are up-to-date (see the figure below).
Console
When the RDR disk resynchronization is finished, all system resources are running in duplex mode, and the
Active Upgrade process is complete. You do not need to restart the system. Also, because your application is
already running on the upgraded software, there is no additional downtime.
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Express5800/R320c-E4, R320c-M4, R320d-E4, R320d-M4 Installation Guide (Windows Server 2008)
Important Because the original version of your system disk is erased during the commit
process, you cannot abort an upgrade session after initiating the commit process.
Duplexed system
Network
External
storage
Committing the Upgrade
1. Bundled Software for the Server
Internal storage
System
Data
(Old system)
(Current data)
Re-mirroring
by RDR
System
Data
(Upgraded system)
(Old data)
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