SAP Note 18551 - How can you save the database with an autochanger ?

Symptom:

How can you save the database with an autochanger without operator ?

Cause and prerequisites

Autochanger in BRBACKUP

Solution
BRBACKUP supports devices with automatic tape changer (e.g. autochanger, tape stacker). These devices can be accessed both locally and remotely.
Change the
init.sap profiles
parameter backup_dev_type:

local: backup_dev_type = tape_auto
remote: backup_dev_type = pipe_auto

BRBACKUP switches automatically to the next tape when a tape is filled (dependent on tape_size).

Caution:
--------
Many of these devices require additional time for the tape change. This additional time can be catered for by means of appropriate definition of parameter rewind_offline in the profile init.sap (operating-system-specific).

For example:
rewind_offline = "mt -f $ offline && sleep 30"

The time must be set even higher for certain devices, e.g.:

rewind_offline = "mt -f $ offline && sleep 200"

Caution:
--------
On the IBM AIX platform, tctl or tapeutil commands can be used in place of the mt command.