The LMI record provides detailed device/CPC node information that is gathered for a particular link incident. An LMI record describes link-degraded and link-failure incidents.
Offset | Size (bytes) Alignment (bits) | Field Name | Description | |
---|---|---|---|---|
Dec | Hex | |||
0 | (0) | 1 | A2KEY1 | Class/Source: |
1010 0010 | Link maintenance information (LMI) record; type = X'A2'. | |||
1 | (1) | 1 | A2KEY2 | System/release level: |
100. .... | OS/VS2 and later MVS™ systems. | |||
.... xxxx | Release level (0-1F). | |||
2 | (2) | 1 | A2SMS | Record-independent switches: |
1... .... | More records follow. | |||
0... .... | Last record. | |||
.x.. .... | Time-of-Day (TOD) clock instruction issued. | |||
.0.. .... | IBM® System/360 | |||
.1.. .... | IBM System/370 | |||
..1. .... | Record truncated. | |||
...1 .... | 370 XA mode record. | |||
.... 1... | TIME macro used. | |||
.... .xxx | Reserved. | |||
3 | (3) | 3 | Record-dependent switches: | |
A2SW1 | Reserved. | |||
A2SW2 | Reserved. | |||
A2SW3 | Reserved. | |||
6 | (6) | 1 | A2RCDCT | Record count: |
xxxx .... | Sequence number of this physical record. | |||
.... xxxx | Total number of physical records in this logical record. | |||
7 | (7) | 1 | Reserved. | |
8 | (8) | 8 | A2DT | System date and time of incident: |
8 | (8) | 4 | A2DATE | System date of failure. |
12 | (C) | 4 | A2TIME | System time of failure. |
16 | (10) | 8 | A2CPUID | CPU identification. |
16 | (10) | 1 | A2VER | Machine version code: |
xxxx xxx. | Reserved. | |||
.... ...0 | Version I CPUs. | |||
.... ...1 | Version II CPUs. | |||
17 | (11) | 3 | A2SER | CPU serial number. |
20 | (14) | 2 | A2MOD | CPU machine model number |
22 | (16) | 2 | A2CEL | Reserved. |
END OF STANDARD HEADER | ||||
24 | (18) | 1 | A2INQUAL | Incident qualifiers. |
1... .... | Null. | |||
.1.. .... | Resend. Report or record has already been sent to a channel. | |||
..1. .... | Dynamic connectivity control element. Incident node is a dynamic switch port. | |||
...1 .... | Dedicated connection; static connection state. | |||
.... xx.. | Reporting class. | |||
.... 00.. | Information report. | |||
.... 01.. | Link degraded but operational. | |||
.... 10.. | Link not operational. | |||
.... 11.. | Reserved. | |||
.... ..xx | Reserved. | |||
25 | (19) | 1 | A2INCODE | Incident code. |
x... .... | Primary/Secondary report. | |||
0... .... | Primary report. | |||
1... .... | Secondary report. | |||
.xxx xxxx | Incident code type (IC). X'07'- X'7F' reserved. | |||
x000 0001 | Implicit incident. | |||
x000 0010 | Bit error rate threshold exceeded. | |||
x000 0011 | Link failure, loss of signal or synchronization. | |||
x000 0100 | Link failure, nonoperational sequence recognized. | |||
x000 0101 | Link failure, sequence timeout. | |||
x000 0110 | Link failure, illegal sequence for link-level facility state. | |||
26 | (1A) | 2 | A2DEDCIF | Statically Connected Switch Interface (SCSI). |
28 | (1C) | 32 | A2INODES | INCIDENT Node Descriptor. |
Byte 0 | Incident flags. | |||
xxx. .... | Incident node-ID validity. X'3' - X'7' reserved. | |||
000. .... | Valid node ID. | |||
001. .... | Valid node ID which may not be current. | |||
010. .... | Invalid node ID; bytes 1-31 are not valid. | |||
...x .... | Incident Node Type: | |||
...0 .... | Device node | |||
...1 .... | CPC node | |||
.... xxxx | Reserved. | |||
Bytes 1-3 | A2NODPAR | DEVICE Node Parameters if byte 0 bit 3 = 0. | ||
Byte 1 | Reserved, X'00'. | |||
Byte 2 | Class: | |||
0000 0000 | Unspecified Class | |||
0000 0001 | Direct Access Storage (DASD) | |||
0000 0010 | Magnetic Tape | |||
0000 0011 | Unit Record (input) | |||
0000 0100 | Unit Record (output) | |||
0000 0101 | Printer | |||
0000 0110 | Communications Controller | |||
0000 0111 | Terminal (full screen) | |||
0000 1000 | Terminal (line mode) | |||
0000 1001 | Stand-alone Channel-to-Channel (CTC) | |||
0000 1010 | Switch | |||
xxxx xxxx | Reserved (11 - 255) | |||
Byte 3 | Reserved, X'00'. | |||
Bytes 1-3 | A2NODPAR | CPCNode Parameters if byte 0 bit 3 = 1. | ||
Byte 1 | Reserved, X'00'. | |||
Byte 2 | Interface Class: | |||
0000 0000 | Unspecified Class | |||
0000 0001 | ESA/370 channel | |||
0000 0010 | Integrated channel-to-channel adapter (CTCA) | |||
xxxx xxxx | Reserved (3 - 255) | |||
Byte 3 | Identification: | |||
xxxx xxxx | CHPID. | |||
Bytes 4-9 | A2ITYPE | Incident type number EBCDIC decimal value right justified. | ||
Bytes 10-12 | A2IMOD | Incident model number EBCDIC alphameric right justified. | ||
Bytes 13-15 | A2IMEG | Incident manufacturer EBCDIC alphameric right justified. | ||
Bytes 16-17 | A2IPMFG | Incident plant of manufacture EBCDIC alphameric right. justified. | ||
Bytes 18-29 | A2ISEQ | Incident sequence number EBCDIC alphameric right. justified. | ||
Bytes 30-31 | A2IID | Incident hexadecimal interface ID. | ||
60 | (3C) | 32 | A2ANODES | ATTACHED Node Descriptor. |
Byte 0 | Incident flags. | |||
xxx. .... | Attached node-ID validity. X'3' - X'7' reserved. | |||
000. .... | Valid node ID. | |||
001. .... | Valid node ID which may not be current. | |||
010. .... | Invalid node ID; bytes 1-31 are not valid. | |||
...x .... | Attached Node Type: | |||
...0 .... | Device node | |||
...1 .... | CPCnode | |||
.... xxxx | Reserved. | |||
Bytes 1-3 | A2NOPARM | DEVICE Node Parameters if byte 0 bit 3 = 0. | ||
Byte 1 | Reserved, X'00'. | |||
Byte 2 | Class: | |||
0000 0000 | Unspecified Class | |||
0000 0001 | Direct Access Storage (DASD) | |||
0000 0010 | Magnetic Tape | |||
0000 0011 | Unit Record (input) | |||
0000 0100 | Unit Record (output) | |||
0000 0101 | Printer | |||
0000 0110 | Communications Controller | |||
0000 0111 | Terminal (full screen) | |||
0000 1000 | Terminal (line mode) | |||
0000 1001 | Stand-alone Channel-to-Channel (CTC) | |||
0000 1010 | Switch | |||
xxxx xxxx | Reserved (11 - 255) | |||
Byte 3 | Reserved, X'00'. | |||
Bytes 1-3 | A2NOPARM | CPCNode Parameters if byte 0 bit 3 = 1. | ||
Byte 1 | Reserved, X'00'. | |||
Byte 2 | Interface Class: | |||
0000 0000 | Unspecified Class | |||
0000 0001 | ESA/370 channel | |||
0000 0010 | Integrated channel-to-channel adapter (CTCA) | |||
xxxx xxxx | Reserved (3 - 255) | |||
Byte 3 | Identification: | |||
xxxx xxxx | CHPID. | |||
Bytes 4-9 | A2ATYPE | Attached type number EBCDIC decimal value right justified. | ||
Bytes 10-12 | A2AMOD | Attached model number EBCDIC alphameric right justified. | ||
Bytes 13-15 | A2AMFG | Attached manufacturer EBCDIC alphameric right justified. | ||
Bytes 16-17 | A2APMFG | Attached plant of manufacture EBCDIC alphameric right justified. | ||
Bytes 18-29 | A2ASEQ | Attached sequence number EBCDIC alphameric right justified. | ||
Bytes 30-31 | A2AIID | Attached hexadecimal interface ID. | ||
92 | (5C) | 36 | A2INDEP | Incident node-dependent information. |