TMF Planning and Configuration Guide (G06.24+)

Moving Between Earlier TMF Environments and D46
HP NonStop TMF Planning and Configuration Guide—522416-004
A-5
Falling Back From D46
•
The TMFARLIB audit reading procedures will not return any audit records related
to format 2 files.
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TMFDR will skip over any format 2 files when restoring online dump tapes for File
Recovery.
Falling Back From D46
After migrating to D46, you can only fall back to certain specific products for which
there are associated fallback IPMs. Within the D3x series of products, you can only fall
back to D38. Within the D4x series of products, you can only fall back to D44 or D45.
All D3x products after D38 will include the necessary fallback support (you will not
need to use IPMs).
To fall back from D46 to an earlier TMF product, perform the following steps:
1. Do a clean shutdown of the D46 TMF product:
Ensure that all your data volumes are started and all database tables and files on
them are in a consistent state (by doing file recovery, if necessary).
Execute a TMFCOM STOP TMF command, which must complete without the
failure of any TMF components.
If you are using the RDF product, you must also wait for it to finish processing the
audit trail and shut itself down. (The RDF product shuts itself down automatically
when TMF is stopped).
If RDF is either crashed or not running when you stop TMF, you should restart
RDF and allow it to shut down cleanly. To restart RDF, you must first restart TMF.
Once RDF is started, it scans the audit trail and shuts down whenever it
encounters a TMF shutdown record. Consequently, you might have to restart RDF
more than once while TMF is running, until RDF is able to scan the entire audit
trail. At that point you can stop TMF, and RDF shuts down cleanly.