I am using Opensolaris 2009.06 and found that the nfs server stopped serving after about 15 days of operation. This is a datastore used for esx hosts. All esx hosts reported lost connection to to mount point /datastore/nfs/esx_prod01 which is the nfs share created with zfs set sharenfs=anon=0 /datastore/nfs/esx_prod01. Not sure if restarting the service solved the issue as I am still monitoring. The logs in /var/svc/logs/network-nfs-* don't really show much. -- This message posted from opensolaris.org