Tuning statistics file report for multipath channel connections using XCF

Table 1 shows the format of the record written to the appropriate tuning statistics file. For each MPC group, two records are written. The first record contains statistics for the entire MPC group. The second record contains statistics for the READ/WRITE subchannel.

Table 1. Record format for multipath channel connections (XCF)
Offset	Length	Format	Description
0	2	Binary	Record length
2	3	Binary	Reserved
5	1	Binary	Record type
6	4	Binary	Time record moved to buffer
10	4	packed	Date: 01YYDDDF Date: 00YYDDDF
14	4	EBCDIC	System identification
18	8	EBCDIC	TRLE name
26	4	Binary	Reserved
30	8	Binary	MVS™ token
38	4	Binary	Number of timer sweeps (TSWEEP) ^{1, 3}
38	4	Binary	Number of received bytes ²
42	4	Binary	Number of queue sweeps (QSWEEP) ^{1, 3}
42	4	Binary	Receive byte overflow count ²
46	4	Binary	Number of write records ¹
46	4	EBCDIC	XCF identifier (XCF ) ²
50	4	Binary	Number of read records ¹
50	4	Binary	Transmit block size (BSIZE) ²
54	4	Binary	Number of READ/WRITE records ¹
54	4	EBCDIC	READ/WRITE indicator (RDWR) ²
58	4	Binary	Reserved ¹
58	4	Binary	Sent byte count ²
62	1	Binary	CTCA extension length (including this field)
63	1	Binary	CTCA attachment type X'01' ¹ X'03' ²
64	2	EBCDIC	CTCA version = X'F0F2'
66	4	Binary	Reserved ¹
66	4	Binary	Send byte overflow count ²
70	4	Binary	Reserved
74	4	Binary	Reserved
78	4	Binary	Max transmit size (MAXBYTES) ²
82	4	Binary	Reserved
86	4	Binary	Reserved
90	4	Binary	Reserved
94	4	Binary	Number of inbound NLPs (INLP)
98	4	Binary	Number of outbound NLPs (ONLP)
102	4	Binary	NLP byte count
106	4	Binary	NLP byte count overflow
Notes: Indicates fields used only in the first record for statistics on the group. Indicates fields used only in the subsequent record for statistics on the read/write subchannel. TSWEEP and QSWEEP are always 0 for HPDT MPC connections.