Header/Self-defining Section

This section contains the common SMF record headers fields and the triplet fields (offset/length/number), if applicable, that locate the other sections on the record.

Offsets Name Length Format Description
0 0 SMF74LEN 2 binary Record length. This field and the next field (total of four bytes) form the RDW (record descriptor word). See Standard SMF record header for a detailed description.
2 2 SMF74SEG 2 binary Segment descriptor (see record length field).
4 4 SMF74FLG 1 binary System indicator
Bit
Meaning when set
0
New record format
1
Subtypes used
2
Reserved.
3-6
Version indicators (See Standard SMF record header for details.)
7
System is running in PR/SM™ mode.
5 5 SMF74RTY 1 binary Record type 74 (X'4A').
6 6 SMF74TME 4 binary Time since midnight, in hundredths of a second, that the record was moved into the SMF buffer.
10 A SMF74DTE 4 packed Date when the record was moved into the SMF buffer, in the form 0cyydddF. See Standard SMF record header for a detailed description.
14 E SMF74SID 4 EBCDIC System identification (from the SMFPRMxx SID parameter).
18 12 SMF74SSI 4 EBCDIC Subsystem identification (‘RMF’).
22 16 SMF74STY 2 binary Record subtype.
24 18 SMF74TRN 2 binary Number of triplets in this record. A triplet is a set of three SMF fields (offset/length/number values) that defines a section of the record. The offset is the offset from the RDW.
26 1A   2   Reserved.
28 1C SMF74PRS 4 binary Offset to RMF™ Product section from RDW.
32 20 SMF74PRL 2 binary Length of RMF Product section.
34 22 SMF74PRN 2 binary Number of RMF Product sections.
Individual header extension for subtype 1:
36 24 SMF74DCS 4 binary Offset to Device Control data section from RDW.
40 28 SMF74DCL 2 binary Length of Device Control data section.
42 2A SMF74DCN 2 binary Number of Device Control data sections.
44 2C SMF74DDS 4 binary Offset to Device data section from RDW.
48 30 SMF74DDL 2 binary Length of Device data section.
50 32 SMF74DDN 2 binary Number of Device data sections.
Individual header extension for subtype 2:
36 24 SMF742CO 4 binary Offset to Control data section from RDW.
40 28 SMF742CL 2 binary Length of Control data section.
42 2A SMF742CN 2 binary Number of Control data sections.
44 2C SMF742SO 4 binary Offset to System data section from RDW.
48 30 SMF742SL 2 binary Length of System data section.
50 32 SMF742SN 2 binary Number of System data sections.
52 34 SMF742PO 4 binary Offset to Path data section.
56 38 SMF742PL 2 binary Length of Path data section.
58 3A SMF742PN 2 binary Number of Path data sections.
60 3C SMF742MO 4 binary Offset to Member data section from RDW.
64 40 SMF742ML 2 binary Length of Member data section.
66 42 SMF742MN 2 binary Number of Member data sections.
Individual header extension for subtype 3:
36 24 SMF743PO 4 binary Offset to OMVS control data section.
40 28 SMF743PL 2 binary Length of OMVS control data section.
42 2A SMF743PN 2 binary Number of OMVS control data sections.
Individual header extension for subtype 4:
36 24 SMF744FO 4 binary Offset to Local Coupling Facility data section.
40 28 SMF744FL 2 binary Length of Local Coupling Facility data section.
42 2A SMF744FN 2 binary Number of Local Coupling Facility data sections.
44 2C SMF744XO 4 binary Offset to Connectivity data section.
48 30 SMF744XL 2 binary Length of Connectivity data section.
50 32 SMF744XN 2 binary Number of Connectivity data sections.
52 34 SMF744GO 4 binary Offset to Storage data section.
56 38 SMF744GL 2 binary Length of Storage data section.
58 3A SMF744GN 2 binary Number of Storage data sections.
60 3C SMF744QO 4 binary Offset to Structure data section.
64 40 SMF744QL 2 binary Length of Structure data section.
66 42 SMF744QN 2 binary Number of Structure data sections.
68 44 SMF744SO 4 binary Offset to Request data section.
72 48 SMF744SL 2 binary Length of Request data section.
74 4A SMF744SN 2 binary Number of Request data sections.
76 4C SMF744PO 4 binary Offset to Processor data section.
80 50 SMF744PL 2 binary Length of Processor data section.
82 52 SMF744PN 2 binary Number of Processor data sections.
84 54 SMF744CO 4 binary Offset to Cache data section.
88 58 SMF744CL 2 binary Length of Cache data section.
90 5A SMF744CN 2 binary Number of Cache data sections.
92 5C SMF744RO 4 binary Offset to Remote Facility data section.
96 60 SMF744RL 2 binary Length of Remote Facility data section.
98 62 SMF744RN 2 binary Number of Remote Facility data sections.
100 64 SMF744HO 4 binary Offset to Channel Path data section.
104 68 SMF744HL 2 binary Length of Channel Path data section.
106 6A SMF744HN 2 binary Number of Channel Path data sections.
Start of change108End of change Start of change6CEnd of change Start of changeSMF744MOEnd of change Start of change4End of change Start of changebinaryEnd of change Start of changeOffset to SCM data section.End of change
Start of change112End of change Start of change70End of change Start of changeSMF744MLEnd of change Start of change2End of change Start of changebinaryEnd of change Start of changeLength of SCM data section.End of change
Start of change114End of change Start of change72End of change Start of changeSMF744MNEnd of change Start of change2End of change Start of changebinaryEnd of change Start of changeNumber of SCM data sections.End of change
Individual header extension for subtype 5:
36 24 SMF745CO 4 binary Offset to Control section.
40 28 SMF745CL 2 binary Length of Control section.
42 2A SMF745CN 2 binary Number of Control sections.
44 2C SMF745DO 4 binary Offset to Cache Device data section.
48 30 SMF745DL 2 binary Length of Cache Device data section.
50 32 SMF745DN 2 binary Number of Cache Device data sections.
52 34 SMF745XO 4 binary Offset to Cache Device data section extension.
56 38 SMF745XL 2 binary Length of Cache Device data section extension.
58 3A SMF745XN 2 binary Number of Cache Device data section extensions.
60 3C SMF745SO 4 binary Offset to Cache Status data section.
64 40 SMF745SL 2 binary Length of Cache Status data section.
66 42 SMF745SN 2 binary Number of Cache Status data sections.
68 44 SMF7451O 4 binary Offset to RAID Rank data sections.
72 48 SMF7451L 2 binary Length of RAID Rank data section.
74 4A SMF7451N 2 binary Number of RAID Rank data sections.
Individual header extension for subtype 6:
36 24 SMF746DO 4 binary Offset to HFS Global data section.
40 28 SMF746DL 2 binary Length of HFS Global data section.
42 2A SMF746DN 2 binary Number of HFS Global data sections.
44 2C SMF746BO 4 binary Offset to HFS Global Buffer section.
48 30 SMF746BL 2 binary Length of HFS Global Buffer section.
50 32 SMF746BN 2 binary Number of HFS Global Buffer sections.
52 34 SMF746FO 4 binary Offset to HFS File System section.
56 38 SMF746FL 2 binary Length of HFS File System section.
58 3A SMF746FN 2 binary Number of HFS File System sections.
Individual header extension for subtype 7:
36 24 SMF747GO 4 binary Offset to FCD Global data section.
40 28 SMF747GL 2 binary Length of FCD Global data section.
42 2A SMF747GN 2 binary Number of FCD Global data sections.
44 2C SMF747SO 4 binary Offset to FCD Switch data section.
48 30 SMF747SL 2 binary Length of FCD Switch data section.
50 32 SMF747SN 2 binary Number of FCD Switch data sections.
52 34 SMF747PO 4 binary Offset to FCD Port data section.
56 38 SMF747PL 2 binary Length of FCD Port data section.
58 3A SMF747PN 2 binary Number of FCD Port data sections.
60 3C SMF747CO 4 binary Offset to FCD Connector data section.
64 40 SMF747CL 2 binary Length of FCD Connector data section.
66 42 SMF747CN 2 binary Number of FCD Connector data sections.
Individual header extension for subtype 8:
36 24 SMF748CO 4 binary Offset to Control data section.
40 28 SMF748CL 2 binary Length of Control data section.
42 2A SMF748CN 2 binary Number of Control data sections.
44 2C SMF748LO 4 binary Offset to Link Statistics section.
48 30 SMF748LL 2 binary Length of Link Statistics section.
50 32 SMF748LN 2 binary Number of Link Statistics sections.
52 34 SMF748XO 4 binary Offset to Extent Pool Statistics section.
56 38 SMF748XL 2 binary Length of Extent Pool Statistics section.
58 3A SMF748XN 2 binary Number of Extent Pool Statistics sections.
60 3C SMF748RO 4 binary Offset to Rank Statistics section.
64 40 SMF748RL 2 binary Length of Rank Statistics section.
66 42 SMF748RN 2 binary Number of Rank Statistics sections.
68 44 SMF748AO 4 binary Offset to Rank Array data section.
72 48 SMF748AL 2 binary Length of Rank Array data section.
74 4A SMF748AN 2 binary Number of Rank Array data sections.
Individual header extension for subtype 9:
36 24 SMF749PO 4 binary Offset to PCIE Function data section.
40 28 SMF749PL 2 binary Length of PCIE Function data section.
42 2A SMF749PN 2 binary Number of PCIE Function data sections.
44 2C SMF749DO 4 binary Offset to Start of changePCIE Function TypeEnd of change data section.
48 30 SMF749DL 2 binary Length of Start of changePCIE Function TypeEnd of change data section.
50 32 SMF749DN 2 binary Number of Start of changePCIE Function TypeEnd of change data sections.
52 34 SMF749FO 4 binary Offset to Hardware Accelerator data section.
56 38 SMF749FL 2 binary Length of Hardware Accelerator data section.
58 3A SMF749FN 2 binary Number of Hardware Accelerator data sections.
60 3C SMF7491O 4 binary Offset to Hardware Accelerator Compression data section.
64 40 SMF7491L 2 binary Length of Hardware Accelerator Compression data section.
66 42 SMF7491N 2 binary Number of Hardware Accelerator Compression data sections.
Parent topic: Record Mapping