Unable to umount nfs fs

I have a Solaris 2.6 database which has a '/backup' directory that is
mounted from a Solaris 2.6 fileserver.

The fileserver is going away, and I'm trying to move the '/backup' mount
point to the new fileserver.

When I try to umount it says it's busy, however no processes show up
when I run an 'fuser -c'. I tried manually locking it with lockfs, but
got a 'Inappropriate ioctl for device'...

Anyone have any ideas?

root at harp (/) % umount /backup
nfs umount: /backup: is busy
root at harp (/) % fuser -c /backup
/backup:
root at harp (/) % lockfs -h /backup
/backup: Inappropriate ioctl for device
root at harp (/) % umount /backup
nfs umount: /backup: is busy

kyle.

Kyle Bresin
Senior Solaris Systems Administrator
Go2call.com

[975 byte] By [CodeProf.com] at [2007-12-24 20:16:00]