Coupling Facility Activity - SMF record type 74-4

Due to the structure of the Coupling Facility Activity report, the scope of the results of overview processing is different and is indicated in column Scope:

S: Overview column created only for each single system, not for sysplex
X: Overview column created only for sysplex, not for each single system
B: Overview column created for single systems as well as sysplex

There is no exception reporting for Coupling Facility records.

One qualifier is possible:

struct: Mandatory - Coupling Facility structure name.
cfname: Mandatory - Coupling Facility name.

Table 1. Coupling Facility Activity - Conditions Based on SMF Record Type 74-4
Condition	Condition Name	Qualifier	Source	Algorithm	Scope
Average service time of SYNC operations	SYNCST	struct	R744SSTM R744SSRC	Sum(R744SSTM) / Sum(R744SSRC)	B
SYNC operation rate	SYNCRT	struct	R744SSRC Interval	Sum(R744SSRC) / Interval	B
Average service time of ASYNC operations	ASYNCST	struct	R744SATM R744SARC	Sum(R744SATM) / Sum(R744SARC)	B
Ended ASYNC operation rate	ASYNCRT	struct	R744SARC Interval	Sum(R744SARC) / Interval	B
Percentage of changed operations	CHNGDP	struct	R744SSRC R744SARC R744SSTA	Sum(R744SSTA) / (Sum(R744SSRC) + Sum(R744SARC)) * 100	B
Changed operation rate	CHNGDRT	struct	R744SSTA Interval	Sum(R744SSTA) / Interval	B
Path busy rate	PBSY	cfname	R744FPBC Interval	Sum(R744FPBC) / Interval	S
Percent delayed requests	DREQP	cfname	R744SSRC R744SARC R744SSTA R744FSCC R744SQRC	(Sum(R744FSCC) + Sum(R744SQRC)) / (Sum(R744SSRC + R744SARC + R744SSTA)) * 100	S
CF processor utilization	CFUTIL	cfname	R744PBSY R744PWAI	Sum(R744PBSY) / (Sum(R744PBSY) + Sum(R744PWAI)) * 100 Summation over all processors ← unweighted average	X
Directory reclaims	DIRRCLM	struct	R744CDER	Sum(R744CDER)	X
List/directory entry current to total ratio	LDECTR	struct	R744SLEL R744SLEM R744SDEC R744CDEC	R744SLEM / R744SLEL (for List/Lock structure) R744CDEC / R744SDEC (for Cache structure)	X
Data elements current to total ratio	DECTR	struct	R744SMAE R744SCUE R744SDEL R744CDAC	R744SCUE / R744SMAE (for List/Lock structure) R744CDAC / R744SDEL (for Cache structure)	X
Lock entries current to total ratio	LECTR	struct	R744SLTL R744SLTM	(R744SLTM / R744SLTL)	X
Cache read request rate	CREADRT	struct	R744CRHC Interval	R744CRHC / Interval	X
Cache write request rate	CWRITERT	struct	R744CWH0 R744CWH1 Interval	(R744CWH0 + R744CWH1) / Interval	X
Cache castout rate	CCOUTRT	struct	R744CCOC Interval	R744CCOC / Interval	X
Cache cross invalidation rate	CXIRT	struct	R744CXDR R744CXFW R744CXNI R744CXRL R744CXCI Interval	(R744CXDR + R744CXFW + R744CXNI + R744CXRL + R744CXCI) / Interval	X
Total requests to lock structure or serialized list structure	LCKREQ	struct	R744STRC	Sum(R744STRC)	B
Contention on lock structure	LCKCONT	struct	R744SCN	Sum(R744SCN)	B
False contention on lock structure	LCKFCONT	struct	R744SFCN	Sum(R744SFCN)	B
CF utilization percentage	STUTILP	struct	R744SETM R744PBSY	R744SETM * 100 / Sum(R744PBSY)	X
Subchannel busy percentage	SUBCHBP	cfname	R744SSTM R744SATM R744FSCU	(SUM(R744SSTM) + SUM(R744SATM)) * 100 / Interval * R744FSCU	S
Percentage of storage class memory in use	SCMIUP	struct	R744MIUS R744MSMA	R744MIUS * 100 / R744MSMA	X
Percentage of augmented space in use	AUGMIUP	struct	R744MIUA R744MEMA	R744MIUA * 100 / R744MEMA	X
SCM list entry current to total ratio	SCMLCTR	struct	R744MENL R744MEML	R744MENL / R744MEML	X
SCM list element current to total ratio	SCMLECTR	struct	R744MENE R744MEME	R744MENE / R744MEME	X
Average service time per SCM read operation	SCMRST	struct	R744MRST R744MRFC R744MRPC	R744MRST / (R744MRFC + R744MRPC)	X
Average service time per SCM write operation	SCMWST	struct	R744MWST R744MSWC	R744MWST / R744MSWC	X
SCM auxiliary enabled commands to total request ratio	SCMAUXR	struct	R744MAEC R744SSRC R744SARC	R744MAEC / Sum(R744SSRC + R744SARC)	X
SCM delayed faults to total request ratio	SCMDFR	struct	R744MSRL R744MSRR R744MSRM R744SSRC R744SARC	(R744MSRL + R744MSRR + R744MSRM) / Sum(R744SSRC + R744SARC)	X