On all operating systems, tprequires a special file structure for transport data, logs, temporary data, and transport control data. The file structure is operating system-dependent, but SAP has tried to keep these differences as small as possible.
tpneeds a transport directory, which is called /usr/sap/trans under UNIX. You can also use any other directory in the file system, but it must exist on every machine in your network where a SAP instance is running (UNIX: mounted, Windows: share). If this is not the case, you cannot install a transport system that runs automatically.
Under Windows, the default path of the transport directory is \\$(SAPTRANSHOST)\sapmnt\trans.
You can find more information on how to address and rename the transport directory in the section Preparing the File Systems.
The transport directory must have the following subdirectories:
· bin:
Contains the global transport parameter file
· data
Contains the transport data
· log
Contains transport logs, trace files, and statistics
· buffer
Contains control information on which transports are to be imported into which R/3 Systems and the order of the imports
· cofiles
Contains information on change requests (different steps of a change request and their exit codes)
· sapnames
Contains information for SAP users (the status of each change request)
· tmp
Contains temporary files (logs, semaphores on files)
· actlog
Contains action logs for all tasks and requests These files are only changed by the SAP system.
· olddata
Contains “old” files from other directories that are saved here with the clearold command before being deleted by a later execution of this command