'rmtab' isn't meant to be in a very readable format, it's for the system to know what mounts are current.
You may get a better view of it by using 'cat from a Unix host. You could just run 'showmount' from a unix host:
[root@localhost ~]# showmount -a sim1 All mount points on sim1: 192.168.222.138:/vol/vol0 simhost:/vol/vol0
I had been uder the impression that nfs.mountd.trace would log to syslog, but it doesn't:
nfs.mountd.trace When enabled, all mount requests are logged. This option is intended to help debug denied mount requests. Valid values for this option are on (enabled) or off (disabled). The default value for this option is off to avoid too many messages. The output is stored in /mountd_trace.log and can be translated by the mountd_trace.pl program. This program can be found on the NOW site. Turning the option on clears the log file and starts the logging process. Since the logs are kept in memory, the option needs to be turned off to flush the logs to the file.
Hrrrm, that could chew through some memory fast with a lot mounting going on ...
1. Use the nfsstat -l command to view a list of clients. Enable NFS per client statistics collecting:
options nfs.per_client_stats.enable on
Note: As do other statistics gathering tools, the nfs.per_client_ stats.enable usually causes an unnoticable performance reduction, however if you do experience an unacceptable performance reduction, simply disable the option: options nfs.per_client_stats.enable off
Enter nfsstat -l to view all NFS clients connected to the filer.
Use nfsstat -z to zero the statistics if you prefer.
When finished viewing/collecting statistics enter options nfs.per_client_stats.enable off.
2. Use the NTAPTOP script. The following link has instructions for downloading and using NTAPTOP: