SAP(32bit kernel 640) on 64bit OS possible ?

[Former Member]

Hi,

I need to know the following :

Whether the BW 3.1 640 NUC 32 bit system can be system copied to 64 bit OS.

The details of the current and Target Environment are given below.

Note: The above will be a temporary arrangement, and the same will be converted to unicode,

          upgraded to 7.3 and also migrated to 2008 64 bit later

Kindly advice.

Thanks & Regards

Raghunahth L

Objective      : System Copy

Type             : SQL SERVER -- BACKUP RESTORE METHOD

Source          : BW 3.1 Kernel 640 NUC 32 bit

Source DB     : SQL Server 2000 IA32 SP4

Source OS     : Windows 2003 SE IA32 SP2

Target            : BW 3.1 Kernel 640 NUC 32 BIT

Target DB       : SQL Server 2000  IA32 SP4

Target OS       : Windows 2003 EE x64 SP2

[naveen_kumar1 · Accepted solution]

Hi,

The homogenous system copy is our supported way of moving from 32 to 64
Windows on the application server.

Please refer note 89188 R/3 System copy for more details.

547314 - FAQ: System Copy procedure
960769 - Windows: Migration from 32-bit to 64-bit (x86_64)
1280759   SAP recommends only 64-Bit Windows for SAP Appl. Servers

Regards,

Naveen.

[former_member189546 · Accepted solution]

Hello,

Yes the BW 31 with kerenl 640 should run ok on 64 bit Windows not on Windows 2008 only on Windows 2003 Will rin in wow emulation mode on 64 bit Windows

OK to do this a a temp situation

regards,

John Feely

[Former Member]

Hi,

you must make a homogenous system copy for  which the target system is installed on a 64-bit operating system. A  system copy of Windows 32-bit to Windows 64-bit using the same database platform is referred to as a homogenous system copy.

There are two different procedures for making homogenous system copies:

• R3load procedure
  This procedure is identical to the heterogeneous system copy. In this procedure, the database on the source system is exported in a database-independent format and then imported to the target system during the installation.
  Advantage of this procedure: This procedure is largely independent of  the database version and database manufacturer, and it is possible to simultaneously reconfigure or reorganize the database.
  Disadvantage: This procedure is complex and involves long runtimes.
• Database-specific procedure
  In this procedure, the database on the target system is not created and filled with the data of the source system, instead the database is created by copying the data belonging to the database from the source system to the target system. This procedure is described in the Installation and Homogenous System Copy Guide as Backup/Restore, Brcopy, R3Copy or DBCopy procedures depending on the SAP release.
  Advantage: This procedure is quick and less complex.
  Disadvantage: It is not possible to reorganize the database and there  are database-dependent restrictions.

The procedure you should use depends on such determining factors as the hardware, database size and runtime.

Regards,

Venkata S Pagolu.

[Former Member]

Hi,

DB restore is just restoring your data. It is no way impacted with OS.

I guess you can restore it.

Regards,

Venkata S Pagolu.