Record type indicators

Table 1 identifies the valid record types or classes (the first hexadecimal digit, bits 0 through 3, of the record) and specific record sources (second digit, bits 4 through 7).

Table 1. Summary of record type indicators
Record	Contents
1x	Machine check (MCH record) 10 MCH. 13 MCH in the system.
2x	Channel subsystem records 23 SLH. 25 CRW.
3x	Unit check (OBR record) 30 OBR; unit check. 34 No longer generated (previously TCAM OBR). 36 VTAM® OBR. 3A DPA OBR.
4x	Software error (software record) 40 Software-detected software error. 42 Hardware-detected software error. 44 Operator-detected error. 48 Hardware-detected hardware error. 4C Symptom record. 4E Excessive spin CPU list 4F Lost record summary.
5x	System initialization (IPL record) 50 IPL.
6x	Reconfiguration (DDR record) 60 DDR.
7x	Missing interruption (MIH record) 71 MIH.
8x	System ending (EOD record) 80 EOD. 81 System-initiated end; restart not possible. 84 EOD from IOS; restart possible.
9x	Non-Standard (MDR record) 90 SVC 91. 91 MDR.
Ax	Asynchronous notification record (ANR) A1 ETR A2 LMI A3 SIM
Cx	IOS recovery records C2 Dynamic pathing services validation (DPSV).