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Dirty Upgrade, Unicode Conversion
and Dual Stack Split


Bala Prabahar
BAPS Software Consulting Services Inc.
07/15/2011
MOTIVATION

                                                    SOL
                                 EP    ECC   SRM    MAN


                             Unicode and Single Stack Systems



          BW

Non-Unicode and Dual Stack
APPROACH

                             BW                     SOL
                                   EP   ECC   SRM   MAN
                              2
                                         Unicode and Single
                                   3     Stack Systems


BW

Non-Unicode and Dual Stack


                             UCC
1       UPGRADE
           Available Tools


           Processes
              Upgrade and Unicode Conversion Together (CU/UC)
              Upgrade first and then Unicode Conversion
UPGRADE
   SAP EhPi: To upgrade from NW 7.0 to EhP1 for either ABAP or Dual but not for Java Stack.
   SAINT:   To upgrade from NW 7.0 to EhP1 for SolMan
   JSPM:    To upgrade from Java 7.0 to EhP1
   SAPUp:    To upgrade from Pre-NW 7.0 version to EhP1 (CU & UC is possible)
   Note: As of April 21, 2011, SAPehpi 7.10 is replaced by Software Update Manager (SUM), note
    1251735.
UPGRADE
UPGRADE
Step 1 Initialization
 Checks Performed
 ABAP or Java or Dual
Step 2 Extraction
 EhP installation Key, Download Dir and DDIC password
 Packages are extracted to Transport Dir
 Kernel is copied to /EHPI/ABAP/EXENEW and
  /EHPI/ABAP/EXE
Step 3 Configuration
 Stack.xml to /usr/sap/trans/EPS/in
Step 4 Checks
 Last step of the Installation Preparion
 Prerequisites met (such as Disk space requirements)
 New tablespaces and additional space for existing TS
 Open or cancelled updates
Step 5 Preprocessing
 REPACHK2 phase (lock the development environment)
 Shadow Repository creation
 Progress can be checked
  (/EHPI/ABAP/tmp/DBCLONE<NO>.<SID>
 Difference between SAPup and EHP installer
   SAPup  Export media of the upgrade export DVDs
   EhPI   -> Shadow tables from the basis tables of the original instance

 DD modifications
 ACT_UPG and SHADOW_IMPORT_INC
Step 6 Downtime
 1) Switching the table and the kernel
   ~ tables are renamed
   New kernel is copied

 2) Table Conversion, main import and program execution
   PARCONV_UPG
   TABIM_UPG
   XPRAS_UPG
Step 7 Postprocessing
 SGEN
 Background jobs scheduling
Step 8 Finalization
 Ends the installation tool and SL Controller.
UPGRADE
UNICODE CONVERSION
 Options Considered
   Distribution Monitor
   Expdp/Impdp option
   SAP’s export/import method
ANXIETY
 SMIGR_CREATE_DDL


 Blog: http://www.sdn.sap.com/irj/scn/weblogs?blog=/pub/wlg/24399

 ORA-00600 Errors
ANXIETY Contd…
ANXIETY Contd…
SCALABILITY
 Distribution Monitor
 Evaluate the system for "Drop before export/recreate after
  import" secondary indexes of less critical but large ODS
  tables. This way we could rebuild the indexes after turning
  over the system to business for validation.
DUAL STACK SPLIT
 Export content from Dual stack
 Install Single Stack
 Import content into Single stack system
Questions???



          ????

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Dirty upgrade bala

  • 1. Dirty Upgrade, Unicode Conversion and Dual Stack Split Bala Prabahar BAPS Software Consulting Services Inc. 07/15/2011
  • 2. MOTIVATION SOL EP ECC SRM MAN Unicode and Single Stack Systems BW Non-Unicode and Dual Stack
  • 3. APPROACH BW SOL EP ECC SRM MAN 2 Unicode and Single 3 Stack Systems BW Non-Unicode and Dual Stack UCC
  • 4. 1 UPGRADE  Available Tools  Processes  Upgrade and Unicode Conversion Together (CU/UC)  Upgrade first and then Unicode Conversion
  • 5. UPGRADE  SAP EhPi: To upgrade from NW 7.0 to EhP1 for either ABAP or Dual but not for Java Stack.  SAINT: To upgrade from NW 7.0 to EhP1 for SolMan  JSPM: To upgrade from Java 7.0 to EhP1  SAPUp: To upgrade from Pre-NW 7.0 version to EhP1 (CU & UC is possible)  Note: As of April 21, 2011, SAPehpi 7.10 is replaced by Software Update Manager (SUM), note 1251735.
  • 8. Step 1 Initialization  Checks Performed  ABAP or Java or Dual
  • 9. Step 2 Extraction  EhP installation Key, Download Dir and DDIC password  Packages are extracted to Transport Dir  Kernel is copied to /EHPI/ABAP/EXENEW and /EHPI/ABAP/EXE
  • 10. Step 3 Configuration  Stack.xml to /usr/sap/trans/EPS/in
  • 11. Step 4 Checks  Last step of the Installation Preparion  Prerequisites met (such as Disk space requirements)  New tablespaces and additional space for existing TS  Open or cancelled updates
  • 12. Step 5 Preprocessing  REPACHK2 phase (lock the development environment)  Shadow Repository creation  Progress can be checked (/EHPI/ABAP/tmp/DBCLONE<NO>.<SID>  Difference between SAPup and EHP installer  SAPup  Export media of the upgrade export DVDs  EhPI -> Shadow tables from the basis tables of the original instance  DD modifications  ACT_UPG and SHADOW_IMPORT_INC
  • 13. Step 6 Downtime  1) Switching the table and the kernel  ~ tables are renamed  New kernel is copied  2) Table Conversion, main import and program execution  PARCONV_UPG  TABIM_UPG  XPRAS_UPG
  • 14. Step 7 Postprocessing  SGEN  Background jobs scheduling
  • 15. Step 8 Finalization  Ends the installation tool and SL Controller.
  • 17. UNICODE CONVERSION  Options Considered  Distribution Monitor  Expdp/Impdp option  SAP’s export/import method
  • 18. ANXIETY  SMIGR_CREATE_DDL  Blog: http://www.sdn.sap.com/irj/scn/weblogs?blog=/pub/wlg/24399  ORA-00600 Errors
  • 21. SCALABILITY  Distribution Monitor  Evaluate the system for "Drop before export/recreate after import" secondary indexes of less critical but large ODS tables. This way we could rebuild the indexes after turning over the system to business for validation.
  • 22. DUAL STACK SPLIT  Export content from Dual stack  Install Single Stack  Import content into Single stack system