Until SL Toolset SP 10 you used near-Zero Downtime Maintenance (nZDM) tool for SAP Enterprise Portal to achieve a downtime of only some minutes.
Since SL Toolset SP 10 the tool name has changed: now you have to download the newest version of near-Zero Downtime Maintenance (nZDM) for SAP NetWeaver Java (nZDM Java).
What is nZDM Java for?
nZDM Java is designed to minimize the maintenance activities performed in SAP Process Orchestration (PI and BPM) and SAP Enterprise Portal systems.
General information about nZDM Java you can find in
The functionality you know from nZDM for EP is still available with nZDM Java. The business downtime of SP implementations are reduced to only some minutes. It is easy to implement security related patches or SPs without impact on business packages or access to the Business Suite systems. In addition of implementing SPs it is possible to change Portal Content or KMC-configuration, patch JVM or implement updates on your OS in parallel.
How does it work?
nZDM Java uses a clone based approach. This is independent from the clone tool which will be used. The SAP Landscape Virtualization Management (LVM) 2.0 works with nZDM Java in a process integrated way.
Database changes on the productive system are recorded and replayed to the clone system. Thus the user can nearly work as usual while the clone is updated.
The business downtime is reduced to a couple of minutes: it is a log off, log on.
SAP NetWeaver 7.0 including EHP 2, SP11 or higher
SAP NetWeaver 7.3, SP7 or higher
SAP NetWeaver 7.3 including EHP 1, SP2 or higher
SAP NetWeaver 7.4
Details and current status
nZDM for Enterprise Portal is general available. For further details see nZDM Java: minimize the business downtime of your SAP Enterprise Portal update