AutoTMF Software User's Guide (Update 12)

Configuring Automatic Transaction Processing

HP NonStop AutoTMF Software User’s Guide—429952-014

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Requiring Files to Be Audited

The NonStop AutoTMF software manages access to audited files in a manner

transparent to application programs. If the audited attribute is removed from any of the

audited files it is managing, the application will continue to operate without any problem

because NonStop AutoTMF software does not attempt to generate transactions for un-

audited files.

In some environments, the accidental or deliberate disabling of audit on such files is

considered a critical event.

You can enforce the requirement that a file be audited:

1. First set the global parameter ATMFABENDNOAUDIT to ON.

2. Then, configure the files for which auditing is critical with one of the following

ATMFFILE options: COMMONTX, SEPARATETX, RECORDTX, or NOTX.

When any of the configured files is opened by a program, NonStop AutoTMF software

checks the audit flag. If the file is not audited, the NonStop AutoTMF runtime abends

the program and sends a message to the EMS log, thus preventing any update to

occur.

Handling TMF Environmental Errors

By default, if a program encounters a TMF environmental error, NonStop AutoTMF

software aborts the program because the program cannot continue processing without

compromising data integrity. This has the side effect of producing large numbers of

saveabend files at a time when the system is under stress.

You can configure NonStop AutoTMF software to stop, rather than abort, a program

that encounters TMF errors. This eliminates the proliferation of saveabend files caused

by TMF problems.

If NonStop AutoTMF software aborts or stops a program when a TMF error occurs, it

sends a message to the EMS log describing the failure and displaying the TMF error

that was encountered.

STOPONTMFERR applies to the following TMF errors:

The TMF errors that are affected by this parameter are:

•

FETMFNOTRUNNING (82)

•

FETMFNOTCONFIGURED (84)

•

FEDEVICEDOWNFORTMF (85)

•

FEBEGINTRDISABLED (86)

•

FETRANSABRTOWNERDIED (90)

•

FENODEVBUFSPACE (89)