BADTRACK - Defective Track Specification

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.

You can add or remove the specification of defective tracks during any JES2 start. Removal of a BADTRACK statement will allow JES2 to attempt recovery of the track group.

Note: If a BADTRACK statement is removed, JES2 reformats the track group and puts it back into service at the next all-member JES2 warm start or within 1 week, whichever occurs first.