USERACNT writes accounting information into the TMC records. The Bin system’s version of this user exit, BINACNT, accepts information from BINEXIT3 through the user exit communication work area. It uses this information to update the TMC for the bin volumes.
BINACNT checks the volser to determine whether it is a bin volume. Unless you modified the bin tape identifier in the VMTBIN macro, CA VM:Tape assumes that all volsers with the first two characters BN are bin volumes. If the volume is not part of the Bin system, normal exit processing takes place. If the volume is part of the Bin system, BINACNT obtains the VOL1 serial number from the user exit communication work area and writes it in the INTVS field of the TMC. If the tape does not have a label (NL), BINACNT writes the key string "- - NL - -" in the TMC.
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