Some more NetWeaver QA on Installation and Migration

Can I install an SAP NetWeaver 7.0 SR3 system on 32-bit platforms?

As of SAP NetWeaver 7.0 SR3 (SPS 14) you can install only dialog instances on 32-bit platforms. All remaining instances (central instance, database instance, central services instance (SCS), ABAP central services instance (ASCS)) you can install only on 64-bit platforms.

Is SAP Solution Manager 7.0 a new release following SAP Solution Manager 4.0?

SAP Solution Manager 4.0 SR4 (SPS 15) was renamed to SAP Solution Manager 7.0 to make the name compliant with SAP NetWeaver 7.0.

The new name SAP Solution Manager 7.0 brings with it the advantage of both SAP Solution Manager and SAP NetWeaver having the same release number, and is aligned with SAP's decision to streamline its product offerings. This decision also highlights the close alignment and joint go-to-market strategy of these two products.

The renaming of SAP Solution Manager 4.0 to SAP Solution Manager 7.0 is a name change only, therefore the SAP Solution Manager functionality, release schedule, installations, or other technical aspects of SAP Solution Manager will not be affected.

How can I install SAP Solution Manager Diagnostics on an SAP Solution Manager 3.2 system upgraded to SAP Solution Manager 7.0?

Proceed as follows:

1. Install the Java Add-In for ABAP with SAPinst.
2. Deploy LMSERVICE*_.SCA with SAPinst
   For more information, see the installation guides at http://service.sap.com/instguides -> SAP Components -> SAP Solution Manager -> Release 7.0

Can I install an SAP NetWeaver 7.0 system as a non-Unicode system?

You can install an SAP NetWeaver 7.0 SR1 or SR2 ABAP system as a non-Unicode system. When you install an SAP NetWeaver 7.0 SR1 or SR2 dual-stack system (ABAP+Java), the ABAP part of this system can also be installed as non-Unicode. The Java part of this system can only be installed as Unicode.
As of SAP NetWeaver 7.0 SR3, you cannot install an SAP NetWeaver 7.0 ABAP system or the ABAP part of an SAP NetWeaver 7.0 SR3 dual-stack system as non-Unicode any longer.
However, non-Unicode is still supported when you perform the system copy for an SAP system upgraded to SAP NetWeaver 7.0 SR3.

Where can I find the Configuration Wizard?

The Configuration Wizard is a Java application in the SAP NetWeaver Administrator:
http://:/nwa -> Configuration Management -> Scenarios -> Configuration Wizard
or open the application with the following shortcut directly:
http://:/nwa/cfg-wizard

What are the benefits of using the Configuration Wizard?

• You only have to read a reduced number of guides and get familiar with a reduced number of tools.
• You do not need to check conflicting configuration settings and mutual dependencies between components, as the configuration wizard takes care of these dependencies.
• Reduced time and effort for setup

How can I cancel/re-execute configuration task which has "Currently executing" status?

This may happen if your web session has expired during execution of configuration task which was not able to finish in the background because it needed some user input/response. The next time you login to Configuration Wizard if the server is not restarted you will see this task with "Currently executing" status which prevents you from re-executing the task. The status can be cleared by restarting the "tc~lm~ctc~cul~startup_app" application. To do this go to
http://:/nwa -> Operation Management -> Systems -> Start & Stop -> Java EE Applications
Then stop and start the application.

What takes place during a homogeneous system copy?

The main purpose of a homogeneous system copy is to build a test, demo or training system or to move a system to a new hardware. The difference from a heterogeneous system copy is that both the database and operating system remain the same. Because of this on some platforms there is the possibility to perform the copy using database dependent methods. Please read SAP Note 89188. Please note - no matter if you change the version or bit version of either the operating system or the database, the system copy is still considered to be a homogeous system copy (e.g. system copy from Windows 2000 32-bit to Windows 2003 x64).

What takes place during a heterogeneous system copy (migration)?

The main purpose of a heterogeneous system copy is to create a copy of an already existing R/3 system on the platform where either operating system, or database, or both differ from the operating system/database of the source system.
The whole migration process consits of five main steps:
a) preparation steps on the source system
b) export of the source system data into database-independent format. In a ABAP+ Java system it#s required to both export the ABAP and the Java stack.
c) transfer of the data made during the export
d) new system installation together with data import
e) post-processing steps within the target system

Which tools are used during a migration on source and target systems?

The main programs used for the migration are - depending on the kernel release 'R3SETUP' or 'sapinst'. When working, they call some other programs for particular purposes: R3LOAD, R3LDCTL, R3SZCHK. There are also several command files or, in another words, installation templates, that have the extensions R3S (R3SETUP) or xml (sapinst).
For the kernel-tools used during a migration some rules should be followed:
a) Tools used at the export on the source system must have the same version as on the target system.
b) Tools used must all have the same kernel-version. (do not mix up kernel-tools of different releases)
c) Tools must have the same kernel release as the system which is migrated.
The Java system copy tools do not depend on the kernel-version and you can always use the latest version of these tools.For details on this please refer to note #784118.
These rules should be applied unless otherwise specified in an appropriate installation/migration note or guide. Please keep this in mind when downloading a patched version of any mentioned tool from SAP Service Marketplace.

What is the purpose of the files of different types that are used during a migration?

DDL.TPL is used for creation of table/index definition in database specific syntax, contains negative list of tables, views and indexes, assignment of TABARTs to storeage unit and next extent size of table/index. TABART stands for a data class. Fore more details on this please refer to note #46272.
SAP<.STR contains table/index definitions from ABAP Dictionary.
SAP.TPL, export directory, block and file sizes.
SAP. - (e.g.001, 002), so called dump files contains the data of all tables of a tabart in a non-platform-specific file format.
These are binary files and they should never been changed by any editor.
SAP.EXT contains initial sizes for tables and indexes. Not applicable to some RDBMS (e.g. MS SQL Server).
SAP.TOC contains position of table data within the corresponded dump file, name of the dump file , time stamp of unload, table rows number.
TOC files must never been changed besides the approval of SAP Support is given.
SAP.log contains useful information in case of error and for restart point.
SAP.TSK files used by R3load as of release 6.20. For details please refer to note # 455195

I am considering a database/operating system change. Are there any requirements that should be met before the migration starts?

A heterogeneous system copy requires a certified consultant responsible for the migration as well as the migration services if a productive system is affected. Please refer to SAP Note ' 82478 where the requirements are described in detail.

How and from where can I get all the necessary tools for a migration?

To order a Migration Kit please create customer message under XX-SER-SWFL-SHIP component and specify exact OS and DB versions as well as Kernel Release of the system you would like to migrate. A migration guide can be downloaded at: http://service.sap.com/instguides. A list of notes with the most up to date information might be found in beginning of the migration guide.

Is there anything else I need to have/ to do/ to know before doing a migration?

You also need an installation package to build up the target system and installation guide, which you can get in the same way as the Migration Kit and System Copy Guide. Please also read carefully Note #82478 and information stored under http://service.sap.com/osdbmigration.
You may find very useful information in the SAP OS/DB Migration Service and SAP OS/DB Migration Service Planning Guide (please, pay attention to chapter "Organizational Steps"), where you also can find out all prerequisites and requirements for this procedure. Please, note that the migration must be performed by a Basis consultant with special certification for OS/DB Migration.

How can I check whether a migration of a specific product/os-db-combination is supported?

Please check whether both the source and the target product/os-db-combination is supported first. Please refer to the Platform Availability Matrix on http://service.sap.com/pam for this.
In addition please check both the system copy guide and the relevant notes for any restrictions. In some exceptional cases it may be necessary to set up a pilot project for a specific system copy.
Fore more details regarding the availability of system copy procedures odf BW 3.0B/3.1 and SAP NetWeaver 04 systems please refer to: http://service.sap.com/bi --> Services & Implementation --> System Copy and Migration.
Please also refer to the following notes:
#777024 - BW3.0 and BW3.1 System Copy
#771209 - NW04: System copy (supplementary note)
#888210 - NW04s: System copy (supplementary note)
#543715 - Projects for BW Migrations and system copies
For more details on the system copy of 'SAP Web AS Java 6.40' based systems please refer to note #785848 on restrictions and procedures.

Where can I find information on how to optimize the overall runtime of a system copy?

You may refer to: HTTP://service.sap.com/systemcopy -> System Copy & Migration -> Optimization for this.

Are there any restrictions regarding system copies in general?

Yes, there are. You should always refer to the corresponding system copy guide to check the details. For instance for the system copy of ABAP+Java or Java systems of release NW 7.0 the following applies:
- "Refresh"of the database is not supported. A"refresh" of the database means that only the database is loaded with the content of a database of a different system. As in this scenario no migration controller is invoked, this is not supported.
- Copying the database only is not supported
- Copying the central instance only is not supported. The migration controller deletes all dialog instances in the database, so the system is not complete any longer.
- Reinstalling the central instance without the database is not supported.
The migration controller deletes all dialog instances in the database, so the system is not complete any longer.

Is it possible to perform a final migration of a productive system without a "test" run?

No, you should never do this. You should perform a test migration on a comparable hardware with a system which is a copy of the productive database. This is necessary both to get an idea of the overall runtime of the productive migration an to recognize major issues at the export/import before the final migration.
The same applies for the migration key. That means the migration key is generated as a self-service and should be tested before the productive migration. In case of any issues with the key generated it's not possible to create migration keys by the weekend support.