> Simon Gao wrote: > > Here is one issue I am running into when setting up > a new NFS server to share several zfs file systems. > > > > I created following zfs file system from a zfs pool > called bigpool. The bigpool is the top level file > system and mounted as /export/bigpool. > > > > file system mount point > > > > bigpool /export/bigpool > > bigpool/zfs1 /export/bigpool/zfs1 > > bigpool/zfs2 /export/bigpool/zfs2 > > > > All directories under /export are owned by a group > called users. Also group users have write access to > them. > > > > Next, I exported bigpool (zfs1 and zfs2 inherited > from bigpool) as NFS share. > > > > zfs set sharenfs=on bigpool > > > > On a Linux client, I can mounte all shares directly > without problem. If I mounted /export/bigpool to > /mnt/nfs_share on the Linux client. The ownership and > permissions > > on /mnt/nfs_share match to /export/bigpool on the > nfs server. > > > > However, permissions on /mnt/nfs_share/zfs1 or > /mnt/nfs_share/zfs2 are not inherited correctly. The > group ownership is switched to root on > /mnt/nfs_share/zfs1,zfs2 and write permission is > removed. I expect /mnt/nfs_share/zfs1 should match > /export/bigpool/zfs1, so does for zfs2. Why ownership > and permissions do not get inherited? > > > > > > Are you doing an ls or have you actually gone into > the mount points? >
I actually cd into the directory and tried creating files. But It did not work. Looks NFS v3 or maybe NFS v4 does not cross file systems automatically. After mounting /export/bigpool, one has to mount /export/bigpool/zfs1 to see the real directory on a client. So there are two mounts to do to get to /export/bigpool/zfs on the client side. The deeper directory tree gets, the more mounts one has do on the client side. > > Are you using NFS v3 or NFS v4? > > In either event, you could get packet traces > corresponding to the events > to see what it is flowing > across the wire. I.e., you don't know enough right > know to be blaming > the server, whether it is > for NFS or ZFS. > I am using NFS v3. I don't believe I am the only one or first one running into this problem. I would like to know how others deal with such problem. Using OpenSolaris is not an option in our production environment. Without being able to use sub file systems easily, I will be forced to use one big file system without a quota utility that can report each user's usage. That's a real hindering thing. I really wish Sun can put the traditional quota utility back. Simon This message posted from opensolaris.org
