Thank you all for your input and ideas, it has been an interesting time.
I have ended up with the following conclusions, some of which are specific to our circumstance. * lofs Having all zfs file-systems as one export, would have been very attractive, but unfortunately, lofs will only let you export one zfs. If there is another file-system it will only appear as an empty directory after NFS export. Worse, you can write to this directory on the NFS clients, and the changes happen "under" the zfs file-system. This solution will not work here. If only it handled just 2-levels of file-systems! * automount Apart from my initial reservation on using automount, I did find that if I set the timeout to 1 minute or so, I successfully managed to rsync the NetApp users on the volumes I copied, to the x4500. (during copy the number of mounts stayed around ~500). With a higher timeout, it reached about 2000 mounts before the NFS client stalled, and rsync died with errors. However, I have not been about to find a way to make automount detect a newly created zfs. Not even forcing re-mount appears to work if the mount is busy. Re-mounting, successful or not, on 500 servers when we create a new user is not acceptable. * NFSv4 mirror-mounts Untested as it is not available (at least not as a Solaris install DVD from sun.com). However, upgrading 500 NFS client servers to NFSv4 means this is simply not feasible. [1] * What I have not tested: Since I fill users into LDAP, perhaps I can configure automount to read user's home-directory paths there, and detect new accounts quicker. Maybe? I have run out of solutions to test, so unless someone can come up with other suggestions or solutions, we have to consider that the x4500 can not live up to the requirements of our current NetApp system. Jorgen Lundman [1] I am also unsure if the nfsv4-idmapping will be an issue. The NetApp / NAS does not care about uids, nor should it, whereas Solaris appears to map "unknown" users to nobody with nfsv4. Having a complete uid->textname listed on a NAS should not be required, but maybe there is a way around it, I have not had time to test. -- Jorgen Lundman | <[EMAIL PROTECTED]> Unix Administrator | +81 (0)3 -5456-2687 ext 1017 (work) Shibuya-ku, Tokyo | +81 (0)90-5578-8500 (cell) Japan | +81 (0)3 -3375-1767 (home) _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
