Entering content frameProcedure documentation Restoring an Existing Database Instance Locate the document in its SAP Library structure

Prerequisites

The files dbm.knl and dbm.mdf in the Structure linkrun directory of the Structure linkdatabase instance have not been corrupted, which means the Structure linkbackup history is complete.

The database instance is in ADMIN mode.

Procedure

Select Instance ® Install to launch the Database Wizard. This Database Wizard guides you through the entire procedure for restoring an existing database instance.

  1. Specify under which name the existing database instance is registered in the Database Manager GUI.
  2. Choose Next.
    The Database Manager GUI displays a message saying that a database instance with this name already exists.
  3. Choose Reinstall. This particular database instance is then restored. The Database Manager uses the database parameters of the old version of the database instance as the default values for the new version. All data from the old version will be lost.
  4. Enter the first Structure linkDatabase Manager operator and the first database user (Structure linkSYSDBA) for this database instance, enter their passwords, and choose Next.
    The Database Manager GUI features a Use current parameters option for creating the initial parameter file.
  5. Choose Next.
    The system automatically proposes the parameter values from the old version of the database instance. You can adjust these values to your requirements. Select the required parameters and then choose Edit.
    It now appears in the bottom part of the window. Next to the parameter you will see an explanation of what the parameter does and, in some cases, how it is calculated.

    Enter the new value for the parameter in the     New Value field.
    Save the entries you made.
    The new value appears in the New Value column. It is stored in the internal data structures and becomes effective once the     database instance is started/restarted.
  6. Choose Next.
    When you exit the input screen, the parameters are checked following the rules stored on the     Structure linkDBM Server. You may be asked to make and confirm changes before you are permitted to exit the input screen.
    For the     Structure linklog devspaces and the Structure linkdata devspaces, the system automatically proposes the configuration of the old version of the database instance. You can adjust these values to your requirements. Bear in mind the parameters set in the previous step. Select a devspace and then choose Edit. Enter the size and ID (or absolute path) of the devspace and confirm your entries. Repeat for each devspace.
  7. Choose Next and Restore instance.
  8. Select Install.
    A new database instance with the parameters set in step 5 is installed (complete     Structure linkdata backup is used).
    The system will prompt you to give the database instance a new registry name in the Database Manager GUI. This name must be unique within the Database Manager.
  9. Confirm your entries.
  10. Select Close to close the Database Wizard.
    This takes you back to the initial screen of the Database Manager GUI (    Screen).

Once the restore procedure is complete, the database instance is in ONLINE mode.

Note

When the consecutive backups are restored, the Database Manager GUI prompts you to insert the next Structure linkbackup medium each time, unless you are restoring from an automatic tape loader.

You can if you wish stop the restore process and resume it later on (see Continuing an Interrupted Restore).

 

 

 

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