1. R3LDCTL ( R/3 Load Control)1. Implementation is database and Platform specific.2. Creates tables and index structures files (*.STR)3. Creates the view structures files (SAPVIEW.STR)4. Creates database-specific DDL command template (DDL<DBS>.TPL)

2. R3SZCHK ( R/3 Size Check)1. Implementation is database and Platform specific.2. Computes space requirements for tables/indexes and store them into extent files (*.EXT)3. Created Target database size file (DBSIZE.XML)4. DB Object size limit apply.

3. R3LOAD1. Implementation is database and Platform specific.2. Dump format is independent of database and platform.3. Efficient data compression4. Data Integrity check by checksum calculation5. Syntax check of R3LOAD control files6. Parallel call of multiple R3LOAD processes is common7. Restart capable for data export and import8. Required migration key for heterogeneous data import9. Character set conversion (Unicode)10. Table splitting.

4. SMIGR_CREATE_DDL (Runs on the source system) Generates <TABART>.SQL files containing DDL statements for non-standard ABAP

database object. The <TABART>.SQL file is used by R3LOAD to create the non-standard DB objects in the target database bypassing the information in <PACKAGE>.STR files.

5. RS_BW_POST_Migration (Runs on the Target system) Perform necessary adaptations because of DB specific objects in the target system.

SN#

1Generate DDL Statement for non- Standard database objects into *.SQL files (mainly BW objects)

SMIGR_CREATE_DDL

2 Database update Statistics

3SAPINST

Generate tables, index and view structure files (*.STR)Generate DDL template files (*.TPL) R3LDCTL

4 Compute Size of tables and Indexes R3SZCHK5 Compute size of target database R3SZCHK6 Split *.STR files (optional) Package Splitter7

MIGMON

Generate R3LOAD task files (*.TSK) for data export MIGMON8 Generate R3LOAD command files (*.cmd) for data export RELOAD9 Export Data to Dump files

10 SAPINST Finish

ABAP Web-AS – Target System Tasks

SN#1

SAPINSTInstall SAP Instance

2 Install database software3 Create database R3LOAD4

MIGMONGenerate R3LOAD task files (*.TSK) for data import MIGMON

5 Generate R3LOAD command files (*.cmd) for data import R3LOAD6 Import data from dump files MIGCHECK7

SAPINSTCheck R3LOAD *.LOG, *.TSK files

8 Database update statistency DIPGNTAB9 Start SAP instance and execute specific tasks via RFC

10 Generate post-migration activities i.e. for DB specific objects, … RS_BW_POST_MIGRATIONMigration Files:

SN#

Extension Description

1 .str Structure FilesDefine the structure of database objects (tables and indexes)

2 .extExtent definition filesDefine storage characteristic (extent sizes) for tables and indexes in the target database. EXT files exist only for database system with explicit extent size allocation.

3 .tplDatabase TemplateContains database-specific structure and storage information. There is only one TPL file per DBMS.

4 .001, .002,…

Data FilesContain the actual database data in compressed form.

5 .tocTable of Contents filesList the contents of the data files for their export class (table names, starting address of the data for each table in the data files.

6 .tsk Task FilesLog the export status (source) or import status (target) of each database object.

7 .cmd Command FilesDrive the export and import processes.

8 .log Log filesLog for export and import processes.

9 .xml

SAPINST Control FilesControl the source export, target installation, and target import process if SAPINST is used.For the Unicode conversion, R3load also creates logs in XML format on the behalf of the post-conversion processing with SUMG