Date: Tue, 30 Aug 2016 18:46:44 +0200 From: Lev Serebryakov <lev@FreeBSD.org> To: Willem Jan Withagen <wjw@digiware.nl>, Julien Cigar <julien@perdition.city>, freebsd-fs@freebsd.org Subject: Re: ZFS + NFS + multiple hosts/mount options ..? Message-ID: <5aee018f-51aa-2aeb-0964-7bfc88b7bf54@FreeBSD.org> In-Reply-To: <dab0002c-61d7-3bf9-cadd-faf564d1f413@digiware.nl> References: <20160829211001.GI1779@mordor.lan> <7a508630-3bcc-2e3d-a78e-8d5e0675ab85@FreeBSD.org> <dab0002c-61d7-3bf9-cadd-faf564d1f413@digiware.nl>
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On 30.08.2016 18:31, Willem Jan Withagen wrote: >>> Is there a way through the zfs set sharenfs="..." property to share >>> data/somefs readonly to host "dev.lan" _and_ read/write to host >>> "duvel.prod.lan" ? Or should I just set sharenfs="off" and use >>> /etc/exports (I'm using NFS4) ? It seems impossible to have multiple >>> hosts/options/... when the sharenfs property is used .. >> No luck here. I've raised this question multiple times withoput any >> reaction. Here is (very old) PRs with patch, which implements this: >> >> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=147881 >> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=202820 >> > > I'd say, forget about getting any flexible through sharenfs. WHY?! > Did that discussion about 3 years ago, and it boiled down. Don't dare to I don't see any good reason to not support this, aside "It will not be compatible with Illumos". I don't buy this, sorry. Any other reasons? > change it because the people doing ZFS don't like it. There is one BIG problem: deep ZFS hierarchies. If I need to export 100 FSes (100 users' home directories, for example) in one ZFS tree to 4 networks (2xIPv4, 2xIPv6) I need to add 400 (!!!) lines to /etc/exports by hands. All these lines will be virtually the same, and good luck to maintain this mess. If "sharenfs" supports multiple hosts/networks, I need to set this property ONCE (on zpool/home, parent of all FSes in question) and IT'S ALL! And if I need to change same options, I need to change it ONCE and re-export ZFS. Unfortunately, it is NOT enough to export parent FS :( -- // Lev Serebryakov
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