Subtype 3 — Spool Data Management (SDM)

This subtype contains data relating to JES3 spool data management. There subtype consists of eight sections:

1. General spool data management data
2. Spool data set description
3. Spool partition description
4. Spool space utilization snapshot
5. Single track table space allocation snapshot
6. Spool I/O activity
7. Buffers chaining by spool data set
8. Minimal/marginal track condition.