RE: System-supplied output file QAIZACVN not valid

[rob@xxxxxxxxx]

When I do DSPLIBL (do NOT use EDTLIBL!!!!!) I see QSYS above QUSRSYS.

QSYS often has "shell" copies of data files.  They are often copied by 
these IBM utilities into QUSRSYS and then populated with data.

WRKOBJ QAIZACVN

Object      Type      Library     Attribute   Text 
QAIZACVN    *FILE     QSYS        PF          SYSTEM SUPPLIED OUTFILE FOR
QAIZACVN    *FILE     QUSRSYS     PF          Output file for ANZOBJCVN 

Which one has text like "system supplied outfile" which matches your error 
message?
Perhaps it's trying to update the wrong one?

Sticking another library, like RBTSYSLIB above QSYS is not unheard of. 
I've not heard of sticking QUSRSYS above QSYS though.  Perhaps someone 
buggered up WRKSYSVAL QSYSLIBL when adding RBTSYSLIB?

Rob Berendt