To enable logging for rollback recovery only:
FS /d dbase.ref /ltf logtrans.dat
To enable logging for both types of recovery:
FS /d dbase.ref /ltf logtrans.dat /ltt f
|/d dbase.ref||Specifies the database reference file|
|/ltf logtrans.dat||Specifies the log file for advanced logging|
|/ltt f||Specifies logging compatible with rollforward recovery, as well as rollback recovery|
If you want to use rollback recovery for system failures, you need to enable extra logging, which has an impact on performance. You must have enabled the write through (/lw) and flush on commit (/fc) options when Fileshare was started, either on the command line, or by setting them in the fs.cfg file. You do not need to enable these settings if you plan to use only rollforward recovery.