LOGDSN

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           .-&&UID..HFMLOG.&&YYMMDD..&&HHMMSS..&&DBNAME.-.   
>>-LOGDSN=-+-name-pattern--------------------------------+-----><

LOGDSN
Specifies the name pattern that is used by ZDT/IMS functions to generate IMS™ log data set names.

The name pattern can consist of up to five qualifiers. For each qualifier you can specify either the required character string or a symbol. The data set name is generated by replacing the symbols in the name pattern with their runtime values.

For the remainder of this parameter description entry, "the function" refers to the ZDT/IMS function that is to use the IMS log.

The parameter supports these symbols:

&&DBNAME.
The name of the primary database that the function accesses.
&&PREFIX.
Either the user's TSO prefix (if the name is being generated in a TSO environment) or the value that is specified in the TSOPREFIX parameter (otherwise). The value might be null.
&&FUNCOD.
The code for the function. The following are the codes for the functions that might use an IMS log:
IE
Edit
IB
Browse
DIB
Initialize
IXB
Extract
ILB
Load
IPR
Print
IEB
Batch Edit
IBB
Batch Browse
&&HHMMSS.
Thhmmss where hhmmss is the time of day that the IMS log data set name is generated expressed in hours (HH), minutes (MM), and seconds (SS).
&&SSID.
The name of the IMS subsystem that the function is to access.
&&UID.
Either &&PREFIX. (if its value is not null) or the User ID (otherwise).
&&USER.
User ID
&&YYMMDD.
Dyymmdd where yymmdd is the date that the IMS log data set name is generated expressed as a 2-digit year (YY), month (MM), and day (DD).

This parameter is optional. If it is not specified on the HFM1POPI macro statement, ZDT/IMS uses either the value that is specified on the HFM1POPD macro statement (if specified on that statement), or &&UID..HFMLOG.&&YYMMDD..&&HHMMSS..&&DBNAME. (otherwise).

If you do not want users to override the value you specify for this parameter, set ULOGDSN=N.