Backup with Automatic Tape Changers
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.
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:
These commands enable you to administer hundreds of tapes in jukeboxes and autoloaders. For more information, see Mount and Dismount Commands.
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"