Managing SAP Archiving Projects
Contents
1 INTRODUCTION ........................................................................................6
1.1 DOCUMENT OBJECTIVES AND CONTENTS ................................................6
1.2 REQUIREMENTS OF DATA ARCHIVING .....................................................7
2 DATA ARCHIVING IN THE R/3 SYSTEM .............................................8
2.1 R/3 SYSTEM ARCHITECTURE ...................................................................8
2.2 REASONS FOR ARCHIVING ......................................................................9
2.2.1 IT Department ..............................................................................10
2.2.1.1 Ensuring system availability .....................................................11
2.2.1.2 Maintaining performance ..........................................................11
2.2.2 User Departments ........................................................................11
2.3 DATA OBJECTS IN THE R/3 SYSTEM .......................................................12
2.4 IMPORTANT ARCHIVING TERMINOLOGY ................................................13
2.5 APPLICATION-SPECIFIC ARCHIVING ......................................................13
2.6 POSITIONING OF DATA ARCHIVING ........................................................14
2.7 DATA PREVENTION ...............................................................................17
2.7.1 How do I identify unnecessary data? ............................................18
2.7.2 Why is some data created automatically? .....................................18
2.7.3 How can the automatic creation of data be prevented? ................18
3 DATA ARCHIVING AND INFORMATION RETENTION ..................20
3.1 INFORMATION RETENTION REQUIREMENTS ...........................................20
3.1.1 Legal Requirements ......................................................................20
3.1.2 Business Requirements .................................................................21
3.1.3 Technical Requirements ...............................................................22
3.2 PRINT LISTS ..........................................................................................22
3.3 AUDIT INFORMATION SYSTEM ..............................................................23
3.4 DATA RETENTION TOOL .......................................................................23
4 SAP R/3 DATA ARCHIVING CONCEPT ...............................................26
4.1 PROCESS FLOW .....................................................................................26
4.1.1 Create Archive Files ....................................................................26
4.1.2 Execute Deletion Program ............................................................27
4.1.3 Store Archive Files .......................................................................29
4.2 DATA ARCHIVING FEATURES ................................................................29
4.2.1 Archivability Checks ....................................................................29
4.2.2 Data Security During Archiving ...................................................30
4.2.3 Archiving in Parallel with Live Operations ..................................30
4.2.4 Data Compression and Conversion ..............................................30
4.2.5 Connecting to External Storage Systems .......................................31
4.2.6 Access to Archived Data ...............................................................31
4.2.7 Reloading Archived Data ..............................................................31
4.3 DATA ARCHIVING AND CURRENCY CONVERSION (EURO) .....................32
5 TECHNICAL BACKGROUND ................................................................33
5.1 INTRODUCTION .....................................................................................33
5.2 BASIC TERMINOLOGY EXPLAINED .........................................................33
5.3 ARCHIVE DEVELOPMENT KIT (ADK) ....................................................34
5.4 SAP ARCHIVELINK ..............................................................................35
5.5 ARCHIVING ADMINISTRATION ...............................................................38
5.5.1 Customizing ..................................................................................38
5.5.2 Archiving Session .........................................................................39
5.5.3 Management of Archive Files .......................................................41
5.6 RESTARTING ARCHIVING AFTER A PROGRAM TERMINATION ................43
5.6.1 Termination Occurs During Write Program .................................43
5.6.1.1 General scenario .......................................................................43
5.6.1.2 Special scenario ........................................................................44
5.6.2 Termination Occurs During Deletion Program ............................45
5.6.2.1 Archive files are accessible .......................................................45
5.6.2.2 Archive files are not accessible .................................................46
5.6.3 The most common causes ..............................................................47
5.7 REORGANIZATION OF THE DATABASE ....................................................48
6 ACCESS TO ARCHIVED DATA .............................................................49
6.1 SEQUENTIAL ACCESS ............................................................................49
6.2 DIRECT ACCESS ....................................................................................49
6.3 SAP ARCHIVE INFORMATION SYSTEM ..................................................50
6.3.1 Concept and Use ..........................................................................50
6.3.2 Components ..................................................................................50
6.3.2.1 Archive Retrieval Configurator .................................................51
6.3.2.2 Archive Explorer ......................................................................53
6.3.2.3 Status management ...................................................................54
6.3.3 Enhanced Display Options: Examples from SD ............................54
6.3.3.1 Setting up a business view ........................................................54
6.3.3.2 Enhancing the SAP AS interface ...............................................54
6.3.3.3 Process-oriented retrieval ..........................................................56
7 SPECIAL APPLICATION-SPECIFIC ASPECTS OF DATA ARCHIVING ......................57
7.1 CONTROLLING (CO) .............................................................................57
7.1.1 Table analysis using RARCCOA1 and RARCCOA2 .....................58
7.1.2 Determining Archiving Objects .....................................................59
7.1.3 Further Consideration of CO_ITEM .............................................59
7.2 ARCHIVING IN THE EDI ENVIRONMENT .................................................60
7.2.1 Archiving IDocs ...........................................................................60
7.2.2 Archiving Work Items ...................................................................61
7.3 ARCHIVING IN A DISTRIBUTED SYSTEM ENVIRONMENT ........................62
7.3.1 Example: A Distribution Scenario Within an Application .............................64
8 PLANNING AND IMPLEMENTING AN ARCHIVING PROJECT ...........................66
8.1 INTRODUCTION .....................................................................................66
8.2 BUILDING THE PROJECT TEAM ...............................................................67
8.3 ANALYSIS ..................................68
8.3.1 Database and Performance Analysis ............................................68
8.3.2 Identifying the Archiving Objects ..................................................69
8.3.3 Requirements of Archived Data ....................................................71
8.3.3.1 Business requirements ..............................................................72
8.3.3.2 IT requirements ........................................................................73
8.3.3.3 Auditing requirements ..............................................................74
8.4 DESIGN AND CONCEPTION ....................................................................74
8.4.1 Creating an Archiving Concept .....................................................75
8.4.1.1 Business concept ......................................................................75
8.4.1.2 Technical concept .....................................................................76
8.4.2 Setting Up an Implementation Plan ..............................................76
8.4.3 Setting Up a Long-Term Archiving Plan .......................................77
8.5 IMPLEMENTATION AND GOING LIVE ......................................................77
8.5.1 Configuration and Customizing ....................................................78
8.5.2 Testing ..........................................................................................78
8.5.3 Going Live ....................................................................................79
8.6 PERFORMANCE AND ARCHIVING ...........................................................79
8.7 IMPLEMENTING AN ARCHIVING PROJECT: AN EXAMPLE FROM SD...................81
8.7.1 Analysis ........................................................................................82
8.7.1.1 Building the project team ..........................................................82
8.7.1.2 Analyzing the technical and business environment ...................82
8.7.2 Design and Conception ................................................................85
8.7.2.1 Establishing the archiving sequence ..........................................85
8.7.2.2 Establishing a periodic archiving plan ......................................85
8.7.3 Implementation and Going Live ....................................................86
8.7.3.1 Preparation and execution of archiving .....................................86
8.7.4 Sample Archiving Process Flow (Sales Document) ......................87
8.8 CONCLUSION: ARCHIVING CHECKLIST ..................................................93
9 TERTIARY STORAGE MEDIA FOR DATA ARCHIVING ................95
9.1 STORAGE USING SAP ARCHIVELINK ....................................................95
9.2 STORAGE IN AN HSM SYSTEM ..............................................................97
9.3 STORAGE IN A LOCAL FILE SYSTEM .......................................................98
9.4 EVALUATION OF PROCEDURES AND TECHNOLOGIES .............................99
APPENDIX ..........................................101
A. TABLES WITH RAPID GROWTH RATES .....................................................101
B. INFORMATION ON SELECTED ARCHIVING OBJECTS .................................104
C. GLOSSARY ..................................123
D. FREQUENTLY ASKED QUESTIONS ............................................................123
E. FURTHER INFORMATION AND SERVICES ..................................................125
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