Backup with Automatic Tape Changers

Use

In addition to standard backups to local disks or tapes, BRBACKUP supports several types of Oracle backup with automatic tape changers, such as autochangers, autoloaders, jukeboxes, or tape robots.

Features

The following table shows the types of backup supported by BRBACKUP:

Backup type

Parameter

Local disks

disk

Remote disks

stage

Local tape devices with manual tape swapping

tape

Remote tape devices with manual tape swapping

pipe

Automatic sequential tape swapping:
autochangers or autoloaders

Local tape devices

tape_auto

Remote tape devices

pipe_auto

Fully automatic tape swapping:
jukeboxes or tape robots

Local tape devices

tape_box

Remote tape devices

pipe_box

The following commands are used to define automatic mounting and dismounting of tapes in the backup device for tape_box and pipe_box:

?      mount_cmd

?      dismount_cmd

These commands enable you to administer hundreds of tapes in jukeboxes and autoloaders. For more information, see Mount and Dismount Commands.

Activities

You can set the parameters from the above table in either of the following ways:

?      In the backup_dev_type parameter of the Initialization Profile init<DBSID>.sap

?      In the -d|-device command option of BRBACKUP (this overrides the initialization profile)

Some devices with automatic tape changing require additional time to change the tape.  This additional time can be taken into account by adjusting rewind_offline. To do this, you can enter a command like the following:

rewind_offline = "mt -t $ offline && sleep 60"

See also:

Autoloader Backup Example