TMF Application Programmer's Guide (G06.26+)

TMF ARLIB2 Audit-Reading Procedures
HP NonStop TMF Application Programmer’s Guide—522419-005
5-32
Format 2 File Support
UNDOFLAG
The UNDOFLAG field, when set to a nonzero value, indicates that the audit record was
produced by a TMF recovery process (transaction backout, volume recovery, or file
recovery) as it undid the effects of a transaction. You use the UNDOFLAG field to
distinguish such records from those produced on behalf of an application program.
The value of the UNDOFLAG field has the following meaning:
VOLUME
This is the 4-word (8-character) name of the affected disk volume (“$DATA ”, for
example).
Format 2 File Support
The D46 version of the TMF product employs an audit format that supports the use of
format 2 files (big files). For a complete discussion of the implications of this audit-
record format with regard to product migration and fallback, see Appendix A, “Moving
Between Earlier TMF Environments and D46,” of the G06.23 TMF Planning and
Configuration Guide (manual part number 522416-004).
The G06.24 version of the TMF product supports the use of format 2 audit-trail files
(large audit-trail files). For a complete discussion of the implications of this audit-trail
file format with regard to product migration and fallback, see Appendix A, “Fallback
From a Format 2 Audit-Trail Environment to a Format 1 Audit-Trail Environment,” of the
G06.26 TMF Planning and Configuration Guide (manual part number 522416-005).
Procedure Calls
This section provides the format of each TMF audit-reading procedure call. The
descriptions are presented in alphabetic order by procedure name.
Table 5-2 summarizes the audit-reading procedures.
<> 0 the audit record was generated as part of an undo operation by a TMF
recovery process (backout, volume recovery, or file recovery)
0 the audit record does not represent undo work
Note. The TMF audit-reading procedures cannot be called from highpin user processes. Any
attempt to do so will cause a run-time error.