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From: Ulli Horlacher <framstag@rus.uni-stuttgart.de>
To: linux-btrfs@vger.kernel.org
Subject: Re: nfs subvolume access?
Date: Wed, 10 Mar 2021 09:09:40 +0100	[thread overview]
Message-ID: <20210310080940.GB2158@tik.uni-stuttgart.de> (raw)
In-Reply-To: <20210310075957.GG22502@savella.carfax.org.uk>

On Wed 2021-03-10 (07:59), Hugo Mills wrote:

> > On tsmsrvj I have in /etc/exports:
> > 
> > /data/fex       tsmsrvi(rw,async,no_subtree_check,no_root_squash)
> > 
> > This is a btrfs subvolume with snapshots:
> > 
> > root@tsmsrvj:~# btrfs subvolume list /data
> > ID 257 gen 35 top level 5 path fex
> > ID 270 gen 36 top level 257 path fex/spool
> > ID 271 gen 21 top level 270 path fex/spool/.snapshot/2021-03-07_1453.test
> > ID 272 gen 23 top level 270 path fex/spool/.snapshot/2021-03-07_1531.test
> > ID 273 gen 25 top level 270 path fex/spool/.snapshot/2021-03-07_1532.test
> > ID 274 gen 27 top level 270 path fex/spool/.snapshot/2021-03-07_1718.test
> > 
> > root@tsmsrvj:~# find /data/fex | wc -l
> > 489887

>    I can't remember if this is why, but I've had to put a distinct
> fsid field in each separate subvolume being exported:
> 
> /srv/nfs/home     -rw,async,fsid=0x1730,no_subtree_check,no_root_squash

I must export EACH subvolume?!
The snapshots are generated automatically (via cron)!
I cannot add them to /etc/exports


-- 
Ullrich Horlacher              Server und Virtualisierung
Rechenzentrum TIK         
Universitaet Stuttgart         E-Mail: horlacher@tik.uni-stuttgart.de
Allmandring 30a                Tel:    ++49-711-68565868
70569 Stuttgart (Germany)      WWW:    http://www.tik.uni-stuttgart.de/
REF:<20210310075957.GG22502@savella.carfax.org.uk>

  reply	other threads:[~2021-03-10  8:10 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20210613115313.BC59.409509F4@e16-tech.com>
2021-03-10  7:46 ` nfs subvolume access? Ulli Horlacher
2021-03-10  7:59   ` Hugo Mills
2021-03-10  8:09     ` Ulli Horlacher [this message]
2021-03-10  9:35       ` Graham Cobb
2021-03-10 15:55         ` Ulli Horlacher
2021-03-10 17:29           ` Forza
2021-03-10 17:46             ` Ulli Horlacher
2021-03-10  8:17   ` Ulli Horlacher
2021-03-11  7:46   ` Ulli Horlacher
2021-07-08 22:17     ` cannot use btrfs for nfs server Ulli Horlacher
2021-07-09  0:05       ` Graham Cobb
2021-07-09  4:05         ` NeilBrown
2021-07-09  6:53         ` Ulli Horlacher
2021-07-09  7:23           ` Forza
2021-07-09  7:24             ` Hugo Mills
2021-07-09  7:34             ` Ulli Horlacher
2021-07-09 16:30               ` Chris Murphy
2021-07-10  6:35                 ` Ulli Horlacher
2021-07-11 11:41                   ` Forza
2021-07-12  7:17                     ` Ulli Horlacher
2021-07-09 16:35           ` Chris Murphy
2021-07-10  6:56             ` Ulli Horlacher
2021-07-10 22:17               ` Chris Murphy
2021-07-12  7:25                 ` Ulli Horlacher
2021-07-12 13:06                   ` Graham Cobb
2021-07-12 16:16                     ` Ulli Horlacher
2021-07-12 22:56                       ` g.btrfs
2021-07-13  7:37                         ` Ulli Horlacher
2021-07-19 12:06                           ` Forza
2021-07-19 13:07                             ` Forza
2021-07-19 13:35                               ` Forza
2021-07-27 11:27                             ` Ulli Horlacher
2021-07-09 16:06       ` Lord Vader
2021-07-10  7:03         ` Ulli Horlacher
     [not found]   ` <162632387205.13764.6196748476850020429@noble.neil.brown.name>
2021-07-15 14:09     ` [PATCH/RFC] NFSD: handle BTRFS subvolumes better Josef Bacik
2021-07-15 16:45       ` Christoph Hellwig
2021-07-15 17:11         ` Josef Bacik
2021-07-15 17:24           ` Christoph Hellwig
2021-07-15 18:01             ` Josef Bacik
2021-07-15 22:37               ` NeilBrown
2021-07-19 15:40                 ` Josef Bacik
2021-07-19 20:00                   ` J. Bruce Fields
2021-07-19 20:44                     ` Josef Bacik
2021-07-19 23:53                       ` NeilBrown
2021-07-19 15:49                 ` J. Bruce Fields
2021-07-20  0:02                   ` NeilBrown
2021-07-19  9:16               ` Christoph Hellwig
2021-07-19 23:54                 ` NeilBrown
2021-07-20  6:23                   ` Christoph Hellwig
2021-07-20  7:17                     ` NeilBrown
2021-07-20  8:00                       ` Christoph Hellwig
2021-07-20 23:11                         ` NeilBrown
2021-07-20 22:10               ` J. Bruce Fields
2021-07-15 23:02       ` NeilBrown
2021-07-15 15:45     ` J. Bruce Fields
2021-07-15 23:08       ` NeilBrown

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