Date: Fri, 20 Feb 2015 20:34:58 +0100 From: Rainer Duffner <rainer@ultra-secure.de> To: Christian Baer <christian.baer@uni-dortmund.de> Cc: freebsd-fs@freebsd.org Subject: Re: The magic of ZFS and NFS (2nd try) Message-ID: <C2F282EB-FA11-4676-93E0-68112EB03A1D@ultra-secure.de> In-Reply-To: <4257601.p3oiXZFr4n@falbala.rz1.convenimus.net>
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> Am 20.02.2015 um 20:11 schrieb Christian Baer <christian.baer@uni-dortmund.de>: > > Hi everyone! > > I've already asked this question (basically) in the questions list, but I > didn't get anything that really helped me along. I am hoping to get a little > further on this list. > > Using my search engines, I have found out that exporting a ZFS is a by > picky. However I have found no general rules of what to do - yet. > > My file server is called obelix, my workstation falbala. Feel free to make > fun of that fact. :-) > > obelix boots from an SSD. There is a raidz2 configured with 7 HDDs, mounted > under /zfs/arc1. This is the main (basic, root) mount point of the ZFS pool > and it is pretty much empty. There are other tanks I have defined and they > are under /usr/archive/. The directory /usr/archive/ is of course still part > of the SSD. > > When I set /usr/archive as an export in /etc/exports, I can mount that from > falabala. I see all the subdirectories too - each of these are ZFS tanks. > However, I cannot access the contents of the tanks. I've played around here > a bit and there are two things that can happen: > > 1. I can dive into the directories but they look empty from falbala. > 2. Access to the directories is refused completely. > > I don't remember what I did to get each of these results, so please don't > ask. :-) > > Ok, so I read that I cannot export all ZFS mounts together like this and > have to create an export for each seperately. Fine with me. :-) > > So I created and export to /usr/archive/shared which is the mount point of a > ZFS tank. But if I try to mount that via NFS from falbala, the connection is > denied completely. This is logged in /var/log/messages on obelix - without > any reason however. > > Now it might be that I am just to dumb to understand the works of NFS and > ZFS or I am just missing a piece of the puzzle. Can someone please give me a > push, please? You must use the syntax of exports(5) also with zfs set sharenfs= AFAIK, you shouldn’t use /etc/exports to do zfs exports but the above command If your hosts you export to are in your nfs-server’s /etc/hosts, you will need to use the names they resolve to also in the exports-statement. (Though that might be wrong - it was the case with Solaris, though). uids/gids should match, too, of course. Rainerhome | help
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