rstr/filename is a SAP Parameter attribute which is used to control Basic name of the tracefiles information. This is available within R/3 SAP systems depending on the version and release level.
Below is the standard documentation available and a few details of the attributes values .
rstr/filename profile paramerter attributes
Parameter Name: rstr/filename
Description: Basic name of the tracefiles
Default Value: $(DIR_LOGGING)$(DIR_SEP)$(FN_TRACEN)
Parameter Type ( See
IF_PARAMETER_TYPES)
: String(STRING)
Restriction Values:
Parameter Unit:
Parameter Group: Systrace
CSN Component: BC-CST-LL
System-Wide parameter: No
Dynamic Parameter: No
Vector Parameter: No
Has Sub-Parameters: No
Check Function Exists: No
Parameter documentation
The SAP system trace (for example, SQL trace) stores the trace data in
several files that are written sequentially. Parameter rstr/filename
defines the base name of these files. There is always one file with this
exact name. If the file is full (parameter
rstr/max_filesize_MB>), the file is renamed, and a new file with the
base name created. When the file is renamed, a number between 00 and 99
is assigned to the file name. Parameter
rstr/max_files> determines the maximum number of files. If this number
is exceeded, the files are overwritten.
See SAP Parameter Documentation for full SAP documentation for this profile parameter.