Label=(label-name-list)
Specifies the 1- to 6-character string with which the volumes
of the backup file are to be labeled. The Label qualifier is
applicable only to tape volumes. You must specify one or more
label names when you use the Label qualifier.
If you do not specify the Label (or Accept_Label) qualifier,
RMU Backup labels the first tape used for a backup operation
with the first 6 characters of the backup file name. Subsequent
default labels are the first 4 characters of the backup file name
appended with a sequential number. For example, if your backup
file is my_backup.rbf, the default tape labels are my_bac, my_
b01, my_b02, and so on.
When you reuse tapes, RMU Backup compares the label currently
on the tape to the label or labels you specify with the Label
qualifier. If there is a mismatch between the existing label and
a label you specify, RMU Backup sends a message to the operator
asking if the mismatch is acceptable (unless you also specify the
Accept_Labels qualifier).
If desired, you can explicitly specify the list of tape labels
for multiple tapes. If you list multiple tape label names,
separate the names with commas and enclose the list of names
within parentheses. If you are reusing tapes be certain that
you load the tapes so that the label RMU Backup expects and the
label on each tape will match, or be prepared for a high level
of operator intervention. Alternatively, you can specify the
Accept_Label qualifier. In this case, the labels you specify with
the Label qualifier are ignored if they do not match the labels
currently on the tapes and no operator intervention occurs.
If you specify fewer labels than are needed, RMU Backup generates
labels based on the format you have specified. For example, if
you specify Label=TAPE01, RMU Backup labels subsequent tapes as
TAPE02, TAPE03, and so on up to TAPE99. Thus, many volumes can
be preloaded in the cartridge stacker of a tape drive. The order
is not important because RMU Backup relabels the volumes. An
unattended backup operation is more likely to be successful if
all the tapes used do not have to be mounted in a specific order.
Once the backup operation is complete, externally mark the tapes
with the appropriate label so that the order can be maintained
for the restore operation. Be particularly careful if you are
allowing RMU Backup to implicitly label second and subsequent
tapes and you are performing an unattended backup operation.
Remove the tapes from the drives in the order in which they
were written. Apply labels to the volumes following the logic
of implicit labeling (for example, TAPE02, TAPE03, and so on).
Oracle recommends you use the Journal qualifier when you employ
implicit labeling in a multidrive, unattended backup operation.
The journal file records the volume labels that were written
to each tape drive. The order in which the labels were written
is preserved in the journal. Use the RMU Dump Backup command to
display a listing of the volumes written by each tape drive.
You can use an indirect file reference with the Label qualifier.
See the Indirect-command-files help entry for more information.
See How Tapes are Relabeled During a Backup Operation in the
Usage_Notes help entry under this command for a summary of which
labels are applied under a variety of circumstances.