TFA Commands

Introduction:

Oracle Trace File Analyzer (TFA) is a powerful diagnostic tool included with AHF (Autonomous Health Framework). It helps Oracle DBAs and system administrators collect, analyze, and manage diagnostic data for Oracle Database, Grid Infrastructure, and ASM environments — especially during performance or crash issues.

1. Check TFA Status

tfactl status
tfactl start
tfactl stop

2. Collect Diagnostics:

Connect as root user,
Be sure to set the date and time to 2 hours before and after the issue occurred in node-wise if it is RAC.

tfactl diagcollect -from "Jan/01/2025 00:00:00" -to "Jan/01/2025 02:00:00" -noclassify

--It will take some time to collect all the data.