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owner-id
Up to eight alphameric characters
OWNER-ID
may be specified. These are placed
(left-justified and padded with
blanks) in the owner identification
field of the volume label of the
diskette. If owner-id is omitted
and RENAME or FORMAT is
specified, owner-id is written as
OWNER-ID.
RENAME
DELETE
FORMAT
Allows the diskette to be renamed
(vol-id and owner-id). Files and
their labels are not affected.
Deletes active files, thereby freeing
up all space on the diskette (initial-
izes track 0 on the diskette).
Formats the entire surface of the
diskette in the standard interchange
format. Tracks are renumbered for
each track with a surface defect.
If track 0 or more than two tracks
have defects, the diskette is not
initialized and no label of any kind
is written.
Note: If FORMAT is specified for
one diskette in a multivolume file,
it must be specified for all diskettes
in the file.
FORMAT2
Formats the surface of the diskette
in the extended format. Extended
format diskettes have eight 512-
byte sectors per data track. The
index track is formatted in twenty-
six 128-byte sectors; the data tracks
are 1 through 74. Position 76 of
the volume label (VOL 1) contains a
2 if a diskette is formatted in 512-
byte data sectors. The physical
record length field (position 34) of
the data set labels for a diskette also
contains a 2 if the diskette is for-
matted in 512-byte data sectors.
(The formats of the diskette
volume labels and data set labels
are given in The IBM Diskette for
Standard Data Interchange,
GA21-9182. However, diskettes
formatted in 512-byte data sectors
cannot be used for standard data
interchange. )
Tracks are renumbered for each
track with a surface defect. If
track 0 or more than two tracks
have defects, the diskette is not
initialized, and no label of any
kind is written.
Note: If FORMAT2 is specified
for one diskette in a multivolume
file, it must be specified for all
diskettes in the file.
INIT Examples
In order to place a volume identification of
934613 and an owner identification of JOESDISK
on a diskette you would enter:
INIT 934613,JOESDISK
RENAME is the default and the diskette would
be labeled (volume label) but not initialized. An
example of initializing follows:
INIT 843163"FORMAT
BACKUP Procedure
BACKUP creates a diskette file that contains:
•
A standalone program that can change the
directory and library size.
• The reorganized library contents-unused space
between members is collected at the end of
the library.
To return the library to the disk, an I PL must be
performed from the diskette(s) containing the
backed up library, or the RELOAD procedure
must be used. The vol-id of the first diskette con-
taining the library becomes the vol-id of the disk
file during the RELOAD operation. The BACK-
UP procedure evokes the $BACK utility.
C-12
BACKUP Command Statement Format
BACKUP
I -·d [retention-days] [filename
J
vo
I ,
1
#LlBRARY
--
,.~-------
BACKUP Parameters
vol-id
retention-days
_1_
filename
#LlBRARY
Volume identification of the
diskette(s). One to six alpha-
meric (alphabetic or numeric)
characters.
Length of the retention period
(0 to 999 days) for the diskette
file. The default is one day.
Note: A retention value of 999
makes a diskette file a perman-
ent file.
Specifies the name of the single
file that is created on the
diskette(s).
#LlBRARY is the name assigned
to the created diskette file.
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