Date: Thu, 21 Nov 2019 15:57:15 +0100 From: Borja Marcos <borjam@sarenet.es> To: Eric Borisch <eborisch@gmail.com> Cc: Martin Simmons <martin@lispworks.com>, freebsd-fs <freebsd-fs@freebsd.org> Subject: Re: ZFS snapdir readability (Crosspost) Message-ID: <51805C8F-75D6-4DA1-A28E-68DAFC8A0276@sarenet.es> In-Reply-To: <CAMsT2=nBEiaiBNMD9_j1JNBwDueq8anOa2rtO_jPFoRcm0_uDA@mail.gmail.com> References: <20191107004635.c6d2e7d464d3d556a0d87465@magnetkern.de> <CAOtMX2huHZcXHH%2B=3Bx7hX_p9udJ2acOX%2BZL8vW=pjqbe6mOAA@mail.gmail.com> <e2eecef7-21b6-0ff2-b259-71421b7d097c@sentex.net> <9B22AD46-BE87-4305-9638-74D23AD4C8CA@sarenet.es> <cfcc12dd-e9eb-5a98-a031-ab18436a2dd3@sentex.net> <261FE331-EC5C-48C8-9249-9BCBF887CE38@sarenet.es> <913f7040-6e38-452d-6187-e17fae63b652@sentex.net> <20191120144041.7f916360dc0c69bf509c9bd1@magnetkern.de> <AEF4CA02-36B3-42FC-BE92-14DF0AF99540@sarenet.es> <20191120163437.691abd369ab9c0a6d7d45ff2@magnetkern.de> <CF38B478-3638-4C18-B69F-E589DE9BBB95@sarenet.es> <20191120175803.03401c3316fe756cc46f79f1@magnetkern.de> <3C5DC6DD-C44B-41EE-B7AB-6D8F94E43174@sarenet.es> <201911211259.xALCxShX008743@higson.cam.lispworks.com> <462E2C53-2490-4B8C-BB54-BCE8B75BAEB0@sarenet.es> <CAMsT2=nBEiaiBNMD9_j1JNBwDueq8anOa2rtO_jPFoRcm0_uDA@mail.gmail.com>
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> On 21 Nov 2019, at 15:18, Eric Borisch <eborisch@gmail.com> wrote: > > On Thu, Nov 21, 2019 at 7:46 AM Borja Marcos <borjam@sarenet.es> wrote: > > On 21 Nov 2019, at 13:59, Martin Simmons <martin@lispworks.com> wrote: > > I think that is incorrect. You can mount a snapshot on /mnt like this: > > > > /sbin/mount -t zfs filesystem@snapname /mnt > > I’ve never seen that and, indeed, on FreeBSD 12.1 it’s not possible. Or I am terribly > sloppy today! > > Did I miss anything? Is it a new ZFS on Linux feature? > > In a quick test, this works both on Linux and on FreeBSD running ZoF (2019101600). Thanks, so it’s a new feature from ZoL. I am running the stock ZFS. Is it really intended to work or just some misunderstanding? ZFS originally didn’t offer any mechanism to mount snapshots explicitly. Except by cloning. Borja.
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