SAP R3 Upgrade

SAP R/3 Upgrade

SAP Upgrade Concepts

WhatUpgradation of the R/3 System to a higher release using Upgrade kit supplied by SAP.WhyThe decision to upgrade should be based on ‘Business Need’.Reasons to upgrade.Significant & Relevant additional functionality in new releases Problem Fixes and Resolutions Requirement to be on a supported release .SAP’s end of Maintenance & Support .

UpgradeReasons not to Upgrade.Cost of upgrading the hardware / database / OS (if required).Time required to Test the newer release and fix the problemswith the upgrade.

Cost of implementing the newer functionality / reviewing theworkarounds and enhancements in the previous release etc.

Cost of upgrading the SAPGUI on the users computers.Manpower and Effort associated with the above.

When to Upgrade.The additional functionality in the new release meets yourrequirements.

Technical UpgradeMethodology

Planning an UpgradeOS,DB UpgradePre-requisites for UpgradeDetailed Upgrade ActivitiesEscalation Procedures

PlanningReadiness for Upgrade ?

Is there any other project going on ?Are there enough resources ?What are the time estimate ?Budget restrictions ?

What are the show stoppers ?Hardware architecture change ?Functional problems ?Training ?Performance problems ?

Budget Planning

Budgeting for Upgrades

Front-end, Backend, Network, E-commerce

Check - What are the free services provided by SAP ?

Plan - What are the risks to be managed ?

Upgrade ScheduleDefine overall upgrade schedule

Define database backup times

Method

OS upgrade DB upgrade R/3 upgrade

Upgrade sequence

Development system

Quality assurance

Production system

Hardware

Tools

Preparation & Planning Teamwork and

Management

Major Factors Influencing Upgrade

Considerations for enhancementHardware Upgrades

Upgrades to Application and Database serverStorage requirements determinationHigh-end Backup RequirementsBackup and Archiving SolutionNetwork Infrastructure requirementsFront-end Upgrade

Software UpgradesVersion Upgrades to OSVersion Upgrades to DBVersion Upgrades to mySAP.com products

Upgrade Steps Pre-Upgrade Check.Is there a performance problem ?Is the hardware adequately sized ? Sizing as an exercisePerform Stress test / Load test Downtime

Estimate the downtime properly.Parallelise activity.Educate the end user.

Activities during Upgrade Detailed Steps

Database BackupPre - Upgrade - Hot packs applicationKernel UpgradeDatabase UpgradeOS UpgradeDatabase ReorganizationRun PreparePerform the UpgradeSPAU and SPDD

Factors of Runtime and Downtime

Runtime and downtime depend on:Hardware / Operating system.Hard disk configuration.Database.Modifications (SPDD).Productive applications.Number of clients.Installed languages.Upgrade strategy.

Use test upgrade to get estimations of runtime and downtime

R/3 Roadmap

3.0(X) R/3 Release

3.1(X)

4.0(X)

4.6(X)

Upgrade Roadmap is a generic project plan, require to develop by the BASIS Consultant based on the source and target system. For example.

During preparation of Upgrade Roadmap you must have to consider the O.S and Database support for each R/3 Release.

Upgrade RoadmapR/3 Upgrades - Core

Product availability roadmapNote No :156548(4.x), 23875(3.x)Maintenance of R/3 Release :303751

Addon Products upgradeAddon upgrade roadmapNote No :78432

Complimentary Software ProductsSAPNEThttp://service.sap.com/platforms http://service.sap.com /osdbmigration

R/3 Upgrade Assistant

New frontend with graphical user interface

Remote control of upgrades (saprouter)

Multiple user interfaces for each upgrade process

Improved analysis of errors

-Tools for analyzing upgrade log files

-Improved error tolerance (severity ‘P’)

Support functions - Internet Integration

-Direct access to OSS notes using SAPNet (4.5A)New

documentation media (HTML, ...)

-Sap router support, direct OSS access

-Alert Service and Input Wizard

R/3 Upgrade Assistant

Administrator

Observer 1

Firewall Observer 2

R3upUpgradeAssistant

Server

R/3 Upgrade Assistant: Architecture

Benefits: Upgrade process runs independently of frontend More than one connection Remote connection possible

R/3 Upgrade Assistant: R3up control

Escalation Procedure

Check with SAP Support for help during upgrade

Have access to OSS

Have a backup person work from office if no OSS

Check with your experienced colleagues in case of

problem.

Ensure you have enough resources to perform the

upgrade

Plan the upgrade time properly

Optimizing the Upgrade ProcessGoals

Downtime Reduction for productive systems

Predictability and Planning of Upgrade ASAP

Support for Upgrade Project Management ASAP

Unattended upgrade via PREPARE phase to reduce Upgrade support time R/3 Upgrade Assistant

Usability improvements UA

Technical downtime reduction ICNV

Enhanced Modification Adjustment Modif.Assistant

Upgrade StrategiesStrategy

Advantages Disadvantages

A_switch

Short downtimeMedium amount of space required if you need to recover the database.

Disk capacity for a possible databaserecovery is monitored.

A_on Shortest downtimeNo offline backup required after upgrade

Greatest additional space requirements to ensure databaserecovery.Disk capacity for a possible databaserecovery is monitored

A_off No additional space required if you need to recover the database Offline backup necessary after the upgrade.

Longest downtimeDisk capacity for a possible database recovery is not monitored.

A_SWITCH: Productive First Steps (DEV System)

ProductiveOperation

Downtime

5 7 10 16

time

h

RepositoryData Import

Copy Cust.Rep.

Switch+

TableAdjust

ImportControl

Import Lang.

Cleanup

~20

DatabaseBackup

14SyncPoint

Dev.Locked

R/3 Upgrade: Using the right strategy

A_ON: Shortest Downtime (Production System)

ProductiveOperation

Downtime

time

h

RepositoryData Import

Copy Cust.Rep.

Switch+

Table Adjust

ImportControl

DatabaseBackup

StopProduction

RestartProduction

5 7 10 16 ~20 14

Import Lang.

Cleanup

R/3 Upgrade: Using the right strategy

A_OFF: Upgrade with full downtime (Quality System)

ProductiveOperation

Downtime

5 7 10 14 16 timeh

RepositoryData Import

Copy Cust.

Reposit.

Switch+

Table Adjust

ImportControl

Data

Import Lang.

Cleanup

SyncPoint

DatabaseBackup

R/3 Upgrade: Using the right strategy