Use the log operand to set the level of NFS logging messages to be collected. Enter the operand as follows:

>>-+-MODIFY-+--mvsnfs,log=-+-error----+------------------------><
   '-F------'              +-info-----+   
                           +-warn-----+   
                           '-memstats-'   

where

log=error

collects only error messages.

log=info

collects error, attention, and informational messages.

log=warn

Ccollects error message and attention messages.

log=memstats

requests the NFS Server to write memory usage statistics to the NFS Log.

The diagnostic message level can also be set in the execution statement of the NFS startup procedure. For more information, see Capturing diagnostic information using z/OS NFS log data sets and from other components.