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.