HP BACKCOPY Reference Manual page 296

Character Position in the
Label Record
40 - 42
43 - 46
47
48
49 - 80
296 Tape Label Formats
Field Name
Reserved for Future
Standardization
Serial Number (5180 Tape
Drive only)
Device Address (5180 Tape
Drive only)
Checkpoint Data Set Identifier
Reserved for Future
Standardization
Length (in Bytes) Content
Space: Records are not blocked
8 Spaces
4 "NNNN": Unit's serial number in
hexadecimal
Spaces: device other than 5180
1 "0": 5180 device
Space: device other than 5180
1 Space
32 Spaces