You check whether the Database Manager can properly access the specified data carrier and read the data there. You can use this DBM command to check if access to a backup tool is functioning, for example.

This DBM command is executed irrespective of the functions running on the database. However, it might cause a temporary loss of performance in the database instance.

The backup specified is just checked, not restored.


?      You have the server authorization Backup.

?      You have opened a service session (see: service_connect).


recover_check <medium_name> <type> [EBID <ebid_list>] [<nnn>] [UNTIL <date> <time>]

<ebid_list> :: = <external_backup_ID> | <external_backup_ID>,<external_backup_ID>,...





Name of the backup template


Type of backup. Possible values are:

DATA: complete data backup

PAGES: incremental data backup

LOG: log backup


Only for log backup: version of the backup on the data carrier; only relevant for a data carrier of the FILE type

UNTIL <date> <time>

<date> ::= <yyyymmdd>

<time> ::= <hhmmss>

Only for log backup: exact time (year, month, day, hour, minutes, seconds) up to which it is to be checked


List of external backup IDs

If the list contains several backup IDs, then these must be separated by commas.

If backup IDs contain spaces, the list must be enclosed in double quotation marks.


Only for checking a backup that was created with a backup tool of another provider: name under which the backup is known to the backup tool.

Successful Reply


Returncode              <value>

Date                    [<value>]

Time                    [<value>]

Server                  [<value>]

Database                [<value>]

Kernel Version          [<value>]

Pages Transferred       [<value>]

Pages Left              [<value>]

Volume Count            [<value>]

Mediumname              [<value>]

Location                [<value>]

Errortext               [<value>]

Label                   [<value>]

Is Consistent           [<value>]

First LOG Page          [<value>]

Last LOG Page           [<value>]

DB Stamp 1 Date         [<value>]

DB Stamp 1 Time         [<value>]

DB Stamp 2 Date         [<value>]

DB Stamp 2 Time         [<value>]

Page Count              [<value>]

Devices Used            [<value>]

Database ID             [<value>]

Max Used Data Page      [<value>]

Values for the Reply Fields








Name of the database computer


Name of the database instance

Kernel Version

Version of database software

Pages Transferred

Number of pages transferred

Pages Left

Number of pages still to be transferred


Number of data carriers used


Name of the backup template


File or device name


Error message text


Backup ID

Is Consistent

For data backup only: backup is internally consistent

First LOG Page

For data backup: first page of log backup to be imported

For log backup: first page saved in log

Last LOG Page

For log backup only: last page saved in log

DB Stamp 1 Date
DB Stamp 1 Time

Time stamp for first page of log backup

DB Stamp 2 Date
DB Stamp 2 Time

Time stamp for last page of log backup

Page Count

Total number of pages backed up

Devices Used

Number of backup devices used

Database ID

Database ID used to identify data and log backups that belong together

Max Used Data Page

Highest page number assigned (indication of minimum database size when backup is imported)

Reply in the Event of an Error


<err_code>, <err_description>


Values for the Reply Fields




Error Message Number

See also:

Documentation, Messages


Description of the error


Cause of error

The following errors may occur:





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 an external backup tool

The specified backup template cannot be used with a 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 instance was unable to start the check.


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 instance or the backup tool.


ERR_POSTOP: cannot finish backup operation correctly

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


ERR_BACKUPOP: backup operation was unsuccessful

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


ERR_CLEANUP: cannot clean up correctly after backup operation

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