IBM TS2340 User Guide - Page 238

AIX 3494 Enterprise Tape Library Driver AIX Device Driver Trace Facility The AIX trace facility is supported for the device driver. The trace event is identified with a hookword. The hookword used by the device driver is 426. The trace can be initiated at any time before an operation on a tape device. Enter the following command to start the trace: trace -a -j 426 This command starts the trace in the background and collects only the trace events with the 426 hookword. Enter the following command to stop the trace: trcstop This command stops the trace after the tape operations are performed. Enter the following command to view the trace: trcrpt > lmcp.trace.out This command formats the trace output into a readable form and places it in a file for viewing. The /etc/lmcp.trcfmt file is installed into /etc during installation. It provides the formatting statements needed by trcrpt. Daemon Trace Facility The following trace facility is available for the lmcp daemon and device driver: trcatl -[ald] Arguments: -a -l -d (trace all libraries defined in /etc/ibmatl.conf) (name of library) (delete all log files; requires root authority) Examples: trcatl -a >/tmp/trace-out trcatl -l libmgrc7 Note: The -a argument takes precedence over the -l argument. 220 IBM Tape Device Drivers Installation and User's Guide