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Process documentation Creating a Homogenous System Copy Locate the document in its SAP Library structure

Purpose

You can use a homogenous system copy of your database instance for example to test new applications, to check the database structures without affecting operation or to set up a new standby database.

Prerequisites

Different prerequisites apply depending on the type of database instance that you want to copy:

·        Database instance type OLTP: the processor architecture of the source and target computers have to be compatible.

·        Database instance type liveCache: both the processor architectures and the operating systems of the source and target computers have to be identical, and the same database procedures have to be used on both computers.

Process Flow

Use the Database Manager.

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       1.      Create a complete data backup of the original instance to a backup medium.

       2.      Initialize an existing target instance, or create a new target instance using the for recovery option.

Caution

The target instance has to be the of the same database instance type as the original instance and use the same database software version.

¡        You are using the original parameters of the original database instance for the target instance.

¡        In the target instance, create volumes that are large enough for importing the data backup from the original instance.

¡        In the target instance, define a backup medium that is compatible with the backup medium on which you created the data backup of the original instance.

       3.      Import the complete data backup of the original instance in the target instance.

Note

You can transport the data backup using pipes.

With the database manager GUI, proceed as described in Recovery Without a Backup History.

Caution

You must not transfer the target instance to the operational state ONLINE before you import the data backup from the original instance. If the target instance has already been in operational state ONLINE, you have to reinitialize the target instance.

       4.      Transfer the target instance to the operational state ONLINE.

       5.      Update the system tables in the target instance. You will need the database system administrator and the domain user’s password for this.

       6.      If necessary, restore indices that are no longer up-to-date in the target instance (BAD INDICES).

See also:

Example: Creating a Homogenous System Copy with the Database Manager CLI

 

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