Show TOC

Checking BackupsLocate this document in the navigation structure


You are checking whether the system can access the backup and read the data.


You are logged on to the database as the database system administrator or as a DBM operator with server authorization for performing backups.

More information: Glossary, Server Permission

  1. Select the database in the explorer tree.

  2. In the context menu of the database, choose Start of the navigation path Administration Tasks Next navigation step Check Backup... End of the navigation path

  3. Select which backup you want to check:

    • Check last backup

    • Check specified backup from history

      Choose a backup from the backup history.

    • Check a medium

      Choose a data carrier from the list of available data carriers.

  4. Start the check.


If the check discovers an error, an error message is displayed. The most common error messages are listed in the following table.

Table 1: Messages

Error Message Number

Error message text



ERR_TOOLCHK: the external backup tool was not found

The backup tool could not be found or has been installed incorrectly.


ERR_MEDIUMCHK: the medium cannot be used with this external backup tool

The backup template specified cannot be used with this backup tool.


ERR_PREPARE: prepare of the backup operation failed

The preparations required to use the backup tool could not be completed correctly.


ERR_DBREQ: cannot start database kernel request

The database was unable to start the backup.


ERR_TOOLREQ: cannot start external backup tool correctly

The backup tool could not be started correctly.


ERR_OPCHK: cannot check state of backup operation

Unable to check the status of the database or the backup tool.


ERR_POSTOP: cannot finish backup operation correctly

Although the backup was successful, the required post-processing steps could not be performed.


ERR_BACKUPOP: backup operation was unsuccessful

The backup failed due to a problem with the database or with the backup tool.


ERR_CLEANUP: cannot clean up correctly after backup operation

Although the backup was successful, the system resources used during the check could not be released.

More Information

Messages (Explanation of error messages, sorted by message number)