Procedure documentation Defining a Group of Parallel Backup Media Locate the document in its SAP Library structure

Use

To allow you to backup at a higher speed, you can back up to a number of media in parallel. To do this, define a Structure linkgroup of parallel backup media under a single medium name. A backup that is to be made to a number of media simultaneously should have precisely this medium name assigned to it.

The maximum number of parallel backup media in a group is determined by the value set in the parameter MAXBACKUPVOLS.

When you restore, you can import the data from this type of backup in parallel. The number of backup media from which the import can be performed in parallel is also dependent on the value of the MAXBACKUPVOLS parameter.

Procedure

  1. Choose Instance ® Configuration ® Backup Media.
  2. Select BackupMedia ® New ® Media Group.
    In the     Configuration - Backup Media window, the system creates the media group New Group in the form of a folder whose media type is Parallel.
  3. Assign any name to this media group. You can change this name at a later stage using BackupMedia ® Rename.
  4. Double click the folder to open it.
  5. Now define each individual medium in the media group:
    Choose BackupMedia ® New ® Medium.
    Select General in the     Configuration - Backup Media window and make the following entries:

Name:

Freely definable name to identify the medium

If you want to perform a backup or a restore using one of the external backup tools ADSM, NetWorker, Backint for Oracle, or Backint for SAP DB, start the name of the medium with ADSM, NSR, BACK, or BACK (Backing Up with External Backup Tools).

Location:

Specify the location to which backups are to be made.

With files and pipes, we recommend specifying the absolute path to the backup medium.

Device Type:

Select the type of the backup medium:
File, tape, or pipe.

If you back up the log to a file, the Database Manager GUI automatically generates version files. An automatic Structure linklog backup cannot be made to tape.

If you are saving with external backup tools, enter Pipe as the Device Type.

If you are backing up to tape, you need to address the device driver correctly under the UNIX operating system. Use rewind tapes for backups. On Microsoft Windows NT/Windows 2000 operating systems, the system sets the device driver automatically.

Backup Type:

Select the type of backup you want (full or incremental Structure linkdata backup, interactive log backup, or automatic log backup)

Select Extended in the Configuration - Backup Media window and make the following entries:

Size:

Size of the backup medium

Overwrite:

Select the Overwrite field when you want to use the overwrite mode for the medium (only possible with media type File).

Autoloader:

Select Autoloader to use a tape device with autoload facilities (Backing Up with Automatic Tape Loaders).

OS command:

You can enter any operating system commands here that are appropriate for backing up to tape.