The following example assumes that tracks 1 and 13 are defective on cylinder 10 of SPOOL2. If you warm start or cold start JES3 and a FORMAT initialization statement is not in the initialization stream, BADTRACK statements must be in the stream to prevent JES3 from using these tracks. If you do not include these BADTRACK statements, tracks 1 and 13 are assigned for I/O activity and data on them may be lost.

BADTRACK,DDNAME=SPOOL2,CYL=000A,TRK=0001
BADTRACK,DDNAME=SPOOL2,CYL=000A,TRK=000D