Record Type 78 (4E) — RMF Virtual Storage and I/O Queuing Activity

RMF™ writes record type 78 during a Monitor I session. It has these subtypes:

Subtype 2 — reports virtual storage activity. It contains a Common Storage data section and may contain one or more Private Area data sections. The minimum length of subtype 2 is 1836 bytes if no private area is included. Otherwise the length is 112 bytes plus 1724 bytes plus at least 392 bytes for each private area that is monitored.
Subtype 3 — reports I/O queuing activity and HyperPAV activity. It contains an entry for each logical control unit that had any activity during the interval.
Note: Your installation may produce several type 78 subtype 3 records.

This subtype contains the following sections:

Control section
IOP Initiative Queue and Utilization data section
I/O Queuing Configuration control section
I/O Queuing Configuration data section
I/O Queuing data section
HyperPAV data section

Each subtype contains a header section followed by the RMF Product section.

Macro to Symbolically Address Record Type 78: The SMF record mapping macro for all records produced by RMF is ERBSMFR. Its format is ERBSMFR (n1,n2,...) where n1,n2, ... are the SMF record types you want to map. Note that the parentheses are required only when two or more record types are specified. The mapping macro resides in SYS1.MACLIB.

For more information on using RMF, see z/OS RMF User's Guide. For information on Monitor I and II, see z/OS RMF Report Analysis.