1214 | E-Series TeraScale Debugging and Diagnosticsw w w . d e l l . c o m | s u p p o r t . d e l l . c o mTrace logsIn addition to the syslog buffer, FTOS buffers trace messages which are continuously written by variousFTOS software tasks to report hardware and software events and status information. Each trace messageprovides the date, time, and name of the FTOS process. All messages are stored in a ring buffer and can besaved to a file either manually or automatically upon failover.Some trace files are automatically saved and stored in the flash:/TRACE_LOG_DIR directory for SW andHW Traces of the CP and for all Linecards. This directory contains the TRACE_CURR_BOOT file whichin turn contains the saved trace buffer files.The TRACE_LOG_DIR/TRACE_CURR_BOOT files can be reached by FTP or by using the show filecommand from the flash://TRACE_LOG_DIR directory.Buffer full conditionWhen the Trace Ring Buffer fills up, trace logs are saved into the flash so the buffer can be clear for furthertrace activity. The saved file is named hw_trace_RPM0CP.0, for example. If the buffer fills a second time,a second file is created as hw_trace_RPM0CP.1 and saved to the flash. Following the fifth file created(hw_trace_RPM0CP.4), the saved files are overwritten starting with the .1 version (hw_trace_RPM0CP.1).These files will be saved in flash:/TRACE_LOG_DIR/TRACE_CURR_BOOT. At reload this directory isrenamed as flash:/TRACE_LOG_DIR/TRACE_LAST_BOOT and an empty flash:/TRACE_LOG_DIR/TRACE_CURR_BOOT directory is created.Trace file hw_trace_RPM0CP.0 is not overwritten so that chassis bootup message are preserved.The CP and LP trace file names are:• CP [SW trace] : sw_trace_RPM0CP.0, sw_trace_RPM0CP.1, sw_trace_RPM0CP.2,sw_trace_RPM0CP.3 and sw_trace_RPM0CP.4• CP [HW trace] : hw_trace_RPM0CP.0, hw_trace_RPM0CP.1, hw_trace_RPM0CP.2,hw_trace_RPM0CP.3 and hw_trace_RPM0CP.4• LP [SW trace] : sw_trace_LPX.0, sw_trace_LP1.1, sw_trace_LP1.2, sw_trace_LP1.3 andsw_trace_LP1.4• LP [HW trace] : hw_trace_LPX.0, hw_trace_LP1.1, hw_trace_LP1.2, hw_trace_LP1.3 andhw_trace_LP1.4Trace files are saved in the directory flash:/TRACE_LOG_DIR/TRACE_CURR_BOOT. Upon a system reloadthis directory is renamed flash:/TRACE_LOG_DIR/TRACE_LAST_BOOT, and an empty flash:/TRACE_LOG_DIR/TRACE_CURR_BOOT directory is created.Note: At reload this directory is renamed to flash:/TRACE_LOG_DIR/TRACE_LAST_BOOT and a newempty flash:/TRACE_LOG_DIR/TRACE_CURR_BOOT directory is created.Note: Line card 1 is taken as the example for the following filenames.
