"At least some of the servers that I can't access are using NFSv3"
It has been my experience that NFSv4 on Solaris 10 and NFSv3 on other
hosts, including NetApp filers, cause all sorts of problems. Either you
get "No Directory" or the directory/files are owned by "nobody".
I don't know about NetApp's NFS but the latter issue can usually be
resolved by setting NFSMAPID_DOMAIN on the Solaris side to tell
nfsmapid(1M) what NFSv4 domain to use.
You'll want to restart svc:/network/nfs/mapid after making this
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