SAP MaxDB - Defining Backup Templates

 

Before you can back up data and log entries to a data carrier, you have to define a backup template. In the properties of the backup template you specify the backup type and the type of data carrier that is to be used.

To speed up backups, you can carry them out to several data carriers in parallel. If choose to do so, you need to define a backup template for parallel backups. You can use third-party backup tools to back up and restore data and log entries

-> You have to logon the database as the database system administrator or as a DBM operator with server authorization for performing backups

Procedure

1. Select the database in the explorer tree.

2. In the context menu of the database, choose Administration.

3. Open the Backup tab page.

4. Expand Templates.

5. Choose New.... .

   To create a backup template for parallel backups, choose  New New Parallel Backup Template . Then proceed as with normal backup templates, except that you define several devices instead of one. For backups of the TAPE type, you can use up to 32 tape devices in parallel.

6. Enter the following data:

 

Backup Template Properties
Property	Description
Name	The name of the backup template has no influence on the name of the backup created later using this backup template.
Backup Type	Complete data backup Incremental data backup Log backup
Device Type	Data carrier type File Tape Pipe  Note For automatic log backups, you cannot use pipes.
Backup Tool	Only if you are using a third-party backup tool Specify the backup tool: BACK: Backint for Oracle or Backint for MaxDB NSR: Networker TSM: TSM
Device/File	Depending on the backup type enter the required information: Name of the tape device in the operating system Path and file name of the file in the file system  Caution : If you do not enter a full path here, the system stores your backup in the run directory of the database. Path and name of the pipe We recommend that you do not use the same data carrier for several databases. For log backups to files, the system adds a sequence number to the name of each new backup file. It assigns the numbers sequentially as long as the history of the log backups is not interrupted. If the log backup history is interrupted (for example after the database was initialized), the system starts numbering at 001 again. It also uses sequential numbers if you carry out multiple log backups for one database onto different data carriers, and thus to files with different file names.  Example LogUri.001 LogKai.002 LogOleg.003 LogUri.004 LogUri.005 End of the example. If automatic log backup is switched on, the system stores all backup files under the same file name using a sequence number.  Example DEMODB_MYLOG.001 DEMODB_MYLOG.002 DEMODB_MYLOG.003 DEMODB_MYLOG.004 DEMODB_MYLOG.005   You can also back up to data carriers on remote computers.
Size	There is no size restriction in default mode. The size of log backups to files is calculated as the size of a log segment (general database parameter AutoLogBackupSize) plus the space required by system information.
Compressed	For backup templates of the FILE and PIPE types only Specifies whether the backup is compressed
Overwrite	For backup templates of the FILE type only Specifies whether the backup file can be overwritten We recommend that you do not overwrite a backup with the backup that immediately follows it. Always keep an older version of the backup.
Block Size	Block size that the system uses to write backups to the data carrier.
Autoloader	Select this option if you want to use a tape device with an automatic tape loader.
OS Command	For backup templates fo the TAPE type only Operating system command for backing up to tape devices
Encryption	Prerequisites: license for SAP Cryptolib (only available in SAP systems), private-public key pair has been created using sapgenpse Algorithm Available encryption algorythms: DES, AES Owner Private key owner (see X.509 certificate)

To use a third-party backup tool, choose the following settings:

• Device Type: Pipe

• Backup Tool: Name of the backup tool

• Device/File: Operating system path of the pipe

 

More Information SAP MaxDB - Using Third-Party Backup Tools

 

 

Example of a Backup Template for a Complete Data Backup
Property	Value
Name of the backup template	COM
Backup type	COMPLETE DATA
Data carrier type	FILE
Data carrier (Device/File)	DEMODB_COM Note that if you do not enter an absolute path, then the database system uses the run directory of the database Example: C:\ProgramData\sdb\globaldata\wrk\DEMODB\DEMODB_COM
Size of data carrier	No restriction (blank or 0)
Block size	8 pages
Overwritable	Yes

Example of a Backup Template for a Log Backup
Property	Value
Name of the backup template	DEMODB_LOG
Backup type	LOG
Data carrier type	FILE
Data carrier (Device/File)	DEMODB_MYLOG Note that i you do not enter an absolute path, then the database system uses the run directory of the database Example: C:\ProgramData\sdb\globaldata\wrk\DEMODB\DEMODB_LOG
Size of data carrier	No restriction (blank or 0)
Block size	8 pages
Overwritable	No