Parallel Backups (NetWorker) 

Prerequisites

You have configured the NetWorker connection in accordance with the specifications in Configuring the NetWorker Connection

The following table shows from which SAP DB versions parallel backups and restores are possible with NetWorker.

SAP DB Version

Build

SAP DB Tools for Parallel NetWorker Backups

SAP DB Tools for Parallel NetWorker Restores

7.2.05

004

DBMCLI

DBMCLI

7.3.00

009

015

DBMCLI, DBMGUI, Web DBM

DBMCLI, DBMGUI, Web DBM

DBMCLI, Web DBM

DBMCLI, DBMGUI, Web DBM

7.3.32

000

DBMCLI, DBMGUI, Web DBM

DBMCLI, DBMGUI, Web DBM

7.4.02

000

DBMCLI, DBMGUI, Web DBM

DBMCLI, DBMGUI, Web DBM

See also:

User Manual: SAP DB ® Architecture: SAP DB ® Operating System Platform/Database Instance Type ® SAP DB Versions and Database Instance Types

You must configure a media group with the Database Manager, the individual members of which conform to the conventions described in backup medium. In particular, every media group name must begin with NSR.

Parallel backups are only possible for data backups (complete and incremental).

Requirements

The NetWorker command SAVE or RECOVER is started for each pipe. NetWorker requires the exact name of each backup pipe for a restore. The media group must therefore be configured in exactly the same way during the restore as during the backup. This includes the order of the media in the media group.

The number of tape drives should be the same as the number of pipes used for the backup.

Set the NetWorker parameter Target Sessions for each tape drive to 1.

Procedure

If you want to perform a parallel backup or restore, follow the procedure described in the following documentation:

If a deadlock occurs during a parallel restore, you must import the backup sequentially (that is, from the individual media in the media group) using the Database Manager. Test this procedure.