Common WebSphere MQ SMF header

The format of this record is described in Table 22 and in assembler macros thlqual.SCSQMACS(CSQDQWHS) and thlqual.SCSQMACS(CSQDQWHC), and C header file thlqual.SCSQC370(CSQDSMFC). The field names in C are all in lower case, for example qwhs, qwhsnsda..

The QWHS data includes the subsystem name. For subtype 1 records, it also shows whether there are queue-level accounting records present. If the QWHSNSDA field is 3 or less, there are not, and the corresponding self-defining section (at offset X'34') is not set.

The QWHC data gives you information about the user (for example, the user ID (QWHCAID) and the type of application (QWHCATYP)).

Table 22. Structure of the common WebSphere MQ SMF header record QWHS

Offset: Dec	Offset: Hex	Type	Length	Name	Description
0	0	Structure	128	QWHS
0	0		6		Reserved
6	6	Character	1	QWHSNSDA	Number of self defining sections in the SMF records
7	7		5		Reserved
12	C	Character	4	QWHSSSID	Subsystem name
16	10		24		Reserved
40	28	Character	8	QWHCAID	User ID associated with the OS/390 job
48	30	Character	12	QWHCCV	Thread cross reference
60	3C	Character	8	QWHCCN	Connection name
68	44		8		Reserved
76	4C	Character	8	QWHCOPID	User ID associated with the transaction
84	54	Integer	4	QWHCATYP	Type of connecting system (1=CICS, 2=Batch or TSO, 3=IMS control region, 4=IMS MPP or BMP, 5=Command server, 6=Channel initiator, 7=RRS Batch)
88	58	Character	22	QWHCTOKN	Accounting token set to the OS/390 accounting information for the user
110	6E	Character	16	QWHCNID	Network identifier
126	7E		2		Reserved