The z/OS NFS server has various trace types which control the amount of trace diagnostic information recorded.

ERROR

Only writes error messages to the log data set. Some informational messages are also written to the console. See Network File System messagesfor details.

WARN

Writes both error and warning messages to the NFS server log data set. Some informational messages are also written to the console. See Network File System messagesfor details.

INFO

Writes error, warning and informational messages to the NFS server log data set. Some informational messages are also written to the console. See Network File System messagesfor details.