Volume header labels

Each volume contains at least one volume header label (VOL1) and at most nine. Volume header labels VOL2 through VOL9 are optional.

First volume header label (VOL1)

The first volume header label identifies the volume, the owner, the access conditions, the implementation, and the edition of the appropriate standard.

Format

Position	Field name	Length	Contents
1 to 3	Label identifier	3	VOL
4	Label number	1	1
5 to 10	Volume identifier	6	“a” characters. Permanently assigned by the owner to identify the volume.
11	Volume access indicator	1	“a” characters. Indicates restrictions governing access to the data on this volume. A space indicates that there are no access restrictions for this volume. Any other “a” character means that there are special restrictions governing access to this volume. BS2000: Space or “0” : unrestricted access. “1” : access restricted to owner.
12 to 24	Reserved for future standardization	13	Spaces.
25 to 37	System code	13	“a” characters. Identifies the implementation that recorded the volume header label.
38 to 51	Owner identifier	14	“a” characters. Identifies the owner of the volume. For BS2000:
38 to 41		4	Spaces.
42 to 49		8	“a” characters: user ID.
50 to 51		2	Spaces.
52 to 79	Reserved for future standardization	28	Spaces.
80	Label standard version	1	Indicates to which version of the standard the labels and data formats on the volume conform. 4 signifies: DIN 66029-4 (September 1987 edition) 3 signifies: DIN 66029-3 (May 1979 edition) 2 signifies:n DIN 66029-2 (June 1976 edition) 1 signifies: DIN 66029-1 (August 1972 edition)

Other volume header labels (VOL2 till VOL9)

The other volume header labels are optional. They are not generated by Fujitsu Technology Solutions implementations.

Format

Position	Field name	Length	Contents
1 to 3	Label identifier	3	VOL
4	Label number	1	Digits 2 through 9
5 to 80	Reserved for the implementation	76	There are no conventions or restrictions with regard to the recording and contents of this field.