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AAS - Additional application server

Accept non-severe errors

ADD-ON Handling



CI - Central instance


DI - Dialog instance

DMO (Database migration option)

Downtime-Minimized Update Strategy

Dual-Stack splitting


Equivalent Support package


Keep version


Maintenance Planner

Maintenance Strategy 

Master Guide

Media List


PAS - Primary application server

Product Availability Matrix


Release Strategy

Reset SUM

Resource-Minimized Update strategy - Single system preconfiguration mode 



Shadow instance 

Software Update Manager (SUM)

Source release - Start release



Standard instance

SUM guide 



Target release


Upgrade documentation 

Upgrade and Update Guide

Upgrade Dependency Analyzer (UDA)

Upgrade Performance Analysis 




Vendor Key



Equivalent Support Package level

Equivalent Support Package level is the Support Package level of the target release, which corresponds to the Support Package level of the source release. To avoid data loss, the Support Package level of the target release should not be lower than the equivalent Support Package level.
Please check also the page  Package attribute 

If you have to apply Support Packages to your source release shortly before the update, check whether the equivalent Support Package for the target release is already available. Otherwise, this may delay your update schedule.

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SAP System Instances

From update point of view we distinguish between standard instance (the instance updated by SUM)  and shadow instance 

As of SAP NetWeaver 7.1, the concept and naming of SAP system instances has changed.
The terms “central instance” and “dialog instance” are no longer used. Instead, the SAP system consists of the following instances:

  • Application server instances
    Application server instances can be installed as “primary application server instance” (PAS) or “additional application server instances” (AAS).
  • Central services instance
  • Database instance

For releases lower than SAP NetWeaver 7.1, the “primary application server instance” (PAS)  corresponds to the “central instance” and the “additional application server instance” (AAS) corresponds to the “dialog instance”.

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Source release in update

The source release is the product and SP level of the system before update

To determine the source release of the ABAP SAP system, log on to the system and choose SystemStatus.
The release appears in the Component version field.

To determine the source release and Support Package Stack level of your JAVA SAP system, proceed as follows:
1.Go to the AS Java start page: http://<host name>:<port>/index.html
2.Choose System Information.
3.Log on to AS Java as user J2EE_Admin.
The current release and Support Package level are displayed under Version in the Software Components table.

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Target release in update

The target release is the product and SP level at the end of an update.

Related topics:


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