NFS Services Administrator's Guide (B1031-90072, March 2011)

Unmount Event Tracing Output
The general format of an unmount event trace is:
UNMOUNT REQUEST:<time stamp>
<other tracing>
...
<other tracing>
UNMOUNT REPLY: <status>=unmount status
The unmount status in the unmount reply contains 0 if the unmount is successful; it has a
non-zero value when the unmount is not successful.
The following is an example of a typical unmount trace event:
May 13 18:46:27 t1 UNMOUNT REQUEST: Tue May 13 18:46:27 2003
May 13 18:46:27 t1 dev=44000004 rdev=0 direct
May 13 18:46:27 t1 ping: hpnfs127 request vers=3 min=2
May 13 18:46:27 t1 pingnfs OK: nfs version=3
May 13 18:46:27 t1 nfsunmount: umount /n2ktmp_8264/nfs127/tmp
May 13 18:46:27 t1 Port numbers are 937, 937
May 13 18:46:27 t1 Port match
May 13 18:46:27 t1 nfsunmount: umount /n2ktmp_8264/nfs127/tmp OK
May 13 18:46:27 t1 unmount /n2ktmp_8264/nfs127/tmp OK
May 13 18:46:27 t1 UNMOUNT REPLY: status=0
78 Configuring and Administering AutoFS