Utilities with z/TPFDF recoup optimized chain chasing

The z/TPFDF utilities have special considerations when using recoup optimized chain chasing.

Recoup with z/TPFDF recoup optimized chain chasing
When z/TPFDF index and detail files are enabled for recoup optimized chain chasing, z/TPFDF maintains information in the index file that indicates whether each referenced detail subfile consists of only 1 pool record or more than 1 pool record.
CRUISE with z/TPFDF recoup optimized chain chasing
You can use the capture/restore utility, information and statistics environment (CRUISE) with z/TPFDF files that are enabled for recoup optimized chain chasing.
ZUDFM INIT with z/TPFDF recoup optimized chain chasing
If you use the ZUDFM INIT command to initialize an index file that is enabled for recoup optimized chain chasing, the associated detail subfiles might have technical LRECs (TLRECs) that reference the initialized index file.

Parent topic: z/TPFDF recoup optimized chain chasing