Interactive Procedure:
1. Select the save action.
2. Select the parallel medium.
3. Check the entries.
4. Start the save operation.
1. Select the Save Action (Example: Backup / Save / Data)
Select one of the save actions "data", or "updated pages" from the Backup / Save menu item.
The list of the defined media appears.
2. Select the Medium
The medium defined with the parallel-id ("tapes_4" in the example) must be selected from the list of defined media.
If no parallel group of media has been defined so far, you can do this now. How parallel media are defined using the Media Manager is described in detail in Section Backup / Media Manager.
We recommend to use tapes as parallel media (Device Type "t"; for Windows NT "t" or "r"). However, parallel media can also be files or pipes. Pipes should only be used along with backup tools (see Section External Backup Tools) or for ad-hoc backups.
The maximum number of media that can be defined parallel to each other is restricted by the kernel parameter MAXBACKUPDEVS. Should it become necessary to change this parameter, the serverdb must be stopped and restarted to bring the parameter into effect.
The list of parallel media is displayed again in a separate screen.
3. Check the Entries
In addition to the list of media, the screen shows how many media were used for the preceding backup of this kind. If the number of media is known to be sufficient, it is not necessary to change the
parameter. Confirm the medium definition with Ok or 
. (The Cancel button can be used to cancel the save operation.)
The parameter is only important when the number of parallel media is not sufficient for the backup. Therefore, it is described in detail in Section Saving to Several Parallel Media with Continuation Media.
As for the backup to one medium, a screen is displayed; this time for each medium, containing a short description of the medium and the label that will be written to the medium to identify the backup.
Example of the fourth label screen:
4. Start the Save Operation
For tapes selected as media, you must now mount the tape to the tape device if this has not been done yet, because otherwise the backup will fail. Then you can confirm the label screens. To start the
backup, click on the Ok button (or press the 
key). Each screen must be confirmed with the Ok button (or the 
key); otherwise CONTROL cancels the
save operation.
After confirming the last label screen, CONTROL starts the backup displaying a bar to indicate the progress of the backup. When the backup terminates, the result protocol is displayed.
As long as the backup is being performed, no other backup can be started. Only after confirming the result protocol, you can start another backup.
Batch Call:
Syntax:
Example:
xbackup -a SAVEDATA -d mydb -m TAPES_4
The complete description of the batch calls is included in Section Batch Mode: xbackup / xrestore.
To display the protocol file of the batch call, you can use the Backup / Show Protocol menu function.