Admin has to set change permission for user1 to /vol/userhome/*DOMAIN_NAME*/user1.
Note: only user1 can get access to \\filer\user1$. Users who already mapped a share from \\filer are not able to map share \\filer\user1$ even if they use user1's credencials. This is a great feature of NetApp home_dir implementation.
Hmm I have this configured and tested it for my user. However the hard limit is not being applied as I can happily copy more than my quota into my home directory. Any clues what could be wrong ? I don't see any usage against the quota in quota report
ok I figured it out. My user account is a member of a group that is itself a member of the BUILTIN\Administrators group. It seems that this means any files I write to the filer has the owner set to the BUILTIN\Administrator group so quotas are not applied.
Not sure I would call it standard windows behavior. Windows usually sets ownership to be the the User rather than a group the user happens to be in. It looks to me like the NetApp is purposefully setting the owner to be the id of the Administrators group rather than the id of the user writing the file.