Question & Answer
Question
What information is needed by IBM i support to debug issues with the IBM i QNTC file system?
Answer
To gather the PTF level for the primary service program for QNTC (QZLCKERN), run the command: DSPOBJD QZLCKERN *SRVPGM *SERVICE then page down to the second page of information to retrieve the value for "PTF number". Please update the case with that PTF number.
Gather traces of the failure:
For the STRTRC command, specify job information for the job to be traced, that is, the job on the IBM i accessing QNTC. If that is the same job that you are starting and ending the traces in, the JOB parameter can be omitted; otherwise, specify the job user or job name for the job that uses QNTC.
Use the following commands to start the traces from an IBM i command line:
STRTRC SSNID(QNTC) JOB((*ALL/YourQNTCProfile/*ALL *ALL)) MAXSTG(500000) TRCTYPE((*QNTC *VERBOSE))TRCCNN SET(*ON) TRCTYPE(*IP) TRCTBL(TRCCNN) SIZE(500 *MB) TCPDTA(*TCP () () *N 'n.n.n.n') Replace the n.n.n.n in the TRCCNN command with the actual IP address of the remote file server.
Replace 'YourQNTCProfile' with the user profile that the job is using when accessing the QNTC file system.
Re-create the QNTC failure from the job that the traces were started for.
Stop the traces:
These two commands produce 3 spooled files. The first creates a spooled file named QPSRVTRCJ and the TRCCNN creates two spooled files named QSYSPRT and QPCSMPRT. The two TRCCNN spooled files contain the same information, so, we only need the QPCSMPRT file.
Re-create the QNTC failure from the job that the traces were started for.
Stop the traces:
ENDTRC SSNID(QNTC) PRTTRC(*YES)TRCCNN SET(*OFF) TRCTBL(TRCCNN)These two commands produce 3 spooled files. The first creates a spooled file named QPSRVTRCJ and the TRCCNN creates two spooled files named QSYSPRT and QPCSMPRT. The two TRCCNN spooled files contain the same information, so, we only need the QPCSMPRT file.
Copy these spooled files to your PC in text file format by using either IBM Navigator for i (under Basic Operations - Printer Output) or the Printer Output feature in IBM i Access Client Solutions.
NOTE: IBM support tools cannot parse PDF files so do not send PDF file versions of traces or logs.
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Document Information
Modified date:
14 November 2025
UID
nas8N1022299