Labels

The default label is 10 rowdata characters that are supported in a label with a maximum of 80 characters per row. The default LRECL is 80. The maximum number of data characters supported in a label is 2000 characters. DFSMSrmm provides two default label styles for your use. You can change these label styles by using the DFSMSrmm EDG_EXIT100 installation exit. Figure 1 shows the default label for cartridges, which consists of eight data rows. Cartridge labels are identified by media type other than *, and a density of either *, IDRC, or 3480. Figure 2 shows the default label for all other types of volumes. The default label consists of seven data rows and 2 or 3 rows for spacing the labels.

Figure 1. Default label format for a tape cartridge

|...+....1....+....2....+....3....+....4....+....5....+....6....+....7.
dsname______________________________________
userdata_____________________________________________________________

 jobname_     crdate____
              expdt_____
 dens comp lrecl  blksiz recf

 volser seqn lab       devc

Figure 2. Default label format for a round tape

|...+....1....+....2....+....3....+....4....+....5....+....6....+....7.
dsname______________________________________
userdata_____________________________________________________________
    jobname_                  crdate____

 dens comp lrecl  blksiz recf expdt_____

               volser seqn lab      devc

The values for the variables that are shown in Figure 1 and Figure 2 are:

dsname: The data set name of the file being processed. 1 to 44 characters.
userdata: The user data specified by the message text in the disposition control file. 0 to 69 characters.
jobname: The current job name. 1 to 8 characters.
crdate: The data set create date. 1 to 10 characters in the date format that is specified by the DATEFORM parmlib option.
expdate: The data set expiration date. 1 to 10 characters in the date format specified by the DATEFORM parmlib option.
dens: The recording density of the volume. 1 to 4 characters.
comp: Indicator that data on the volume is compacted. 4 characters.
lrecl: The logical record length of the data. 1 to 5 characters.
blksiz: The block size of the data. 1 to 6 characters.
recf: The record format. 1 to 4 characters.
volser: The volume serial number. 1 to 6 characters.
seqn: The volume sequence number. 1 to 4 characters.
lab: The volume label type. 1 to 3 characters.
devc: The number of the drive on which the file is processed. 4 characters.