Use the BADTRACK initialization statement to specify a range of track addresses of defective tracks on a specific spool volume. This definition should be specified identically on each member in the MAS. JES2 will not attempt to use tracks identified as defective. As a result of listing track groups on this initialization statement, JES2:

• Places the corresponding track group in a pool of permanently defective track groups. The entire track group is considered defective if one of its tracks is specified as defective.
• Does not issue messages for these track groups that it normally issues during an all-member warm start to inform the operator of the defective tracks.