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SAP system copy problem with the log file


currently I make an SAP system copy with the following components.

The source system (windows2003):

- SAP instance DEC

- MaxDB Version

- MaxDB Studio

- The logfile are in the D: drive

The installed target system (windows 2008):

- SAP instance NEW

- MaxDB version

- MaxDB Studio

- The installation is in the P: drive

The approach is the following:

Action in DEC:

1) DB backup via MaxDB Studio >> backup-file org_dec

Action in NEW:

2) Start with MaxDB Studio

3) Initialize the DB

4) Change the db data files from - d:\ ...... to p:\

5) Delete the log file

6) Start the recovery

......but ..the DB disconnect and the recovery stoppt! The error message is: Volume D:\sapdb\DEC\mirrsaplog\M_DISKL001 cannot be created.

The problem is, I can't create a new D: drive in the target system NEW. How is the solution for this problem?



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    author's profile photo Former Member
    Former Member
    Posted on Aug 28, 2013 at 12:06 PM

    Hi Richard,

    actions on source system are correctly done.

    But on the target system you may not delete the log volume ( in your case a file) even when a data backup only contains the application data and the before images a valid log file is necessary.

    So please use on the target system the following procedure

    Database Studio -> Administration Tasks -> Recovery -> recover a Medium

    The wizard asks you if you want to initialize the database before the recovery - this is the important difference which you have to choose

    MARK check box initialize Database before Recovery

    -> NEXT

    Then choose the backup and change the configuration of the source system which is displayed to the target system. - here you can change the log file destination.

    This process is called homogenious system copy. If you are a SAP custoemr you can find SAP notes about this process in OSS System.

    By the way you can integrate both databases into the same database Studio and administer both databases in one database studio with the version

    Regards, Christiane

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