From owner-freebsd-questions@FreeBSD.ORG  Wed Jan 22 20:51:07 2014
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 5DAED2C4
 for <freebsd-questions@freebsd.org>; Wed, 22 Jan 2014 20:51:07 +0000 (UTC)
Received: from email2.allantgroup.com (email2.emsphone.com [199.67.51.116])
 (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by mx1.freebsd.org (Postfix) with ESMTPS id 1BE2B1260
 for <freebsd-questions@freebsd.org>; Wed, 22 Jan 2014 20:51:06 +0000 (UTC)
Received: from dan.emsphone.com (dan.emsphone.com [172.17.17.101])
 by email2.allantgroup.com (8.14.7/8.14.7) with ESMTP id s0MKmSCT032878
 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO);
 Wed, 22 Jan 2014 14:48:28 -0600 (CST)
 (envelope-from dan@dan.emsphone.com)
Received: from dan.emsphone.com (smmsp@localhost [127.0.0.1])
 by dan.emsphone.com (8.14.7/8.14.6) with ESMTP id s0MKmSKh033719
 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO);
 Wed, 22 Jan 2014 14:48:28 -0600 (CST)
 (envelope-from dan@dan.emsphone.com)
Received: (from dan@localhost)
 by dan.emsphone.com (8.14.7/8.14.7/Submit) id s0MKmSPw033718;
 Wed, 22 Jan 2014 14:48:28 -0600 (CST) (envelope-from dan)
Date: Wed, 22 Jan 2014 14:48:28 -0600
From: Dan Nelson <dnelson@allantgroup.com>
To: Chris Stankevitz <chrisstankevitz@gmail.com>
Subject: Re: ZFS: pool vs FS
Message-ID: <20140122204828.GA6033@dan.emsphone.com>
References: <CAPi0psvd++LdTf_STaAytnNSrwMWsj3dhM8Mho=Wb-XbAWojZw@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CAPi0psvd++LdTf_STaAytnNSrwMWsj3dhM8Mho=Wb-XbAWojZw@mail.gmail.com>
X-OS: FreeBSD 9.2-STABLE
User-Agent: Mutt/1.5.22 (2013-10-16)
X-Virus-Scanned: clamav-milter 0.98.1 at email2.allantgroup.com
X-Virus-Status: Clean
X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7
 (email2.allantgroup.com [172.17.19.78]); Wed, 22 Jan 2014 14:48:28 -0600 (CST)
X-Spam-Status: No, score=-3.9 required=5.0 tests=ALL_TRUSTED,BAYES_00,
 RP_MATCHES_RCVD autolearn=ham version=3.3.2
X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on
 email2.allantgroup.com
X-Scanned-By: MIMEDefang 2.73
Cc: freebsd-questions@freebsd.org
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-questions>, 
 <mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions/>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
 <mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 22 Jan 2014 20:51:07 -0000

In the last episode (Jan 22), Chris Stankevitz said:
> Please identify any incorrect statements:
> 
> 1. Filesystems, not pools, can be mounted
> 
> 2. "zpool create foo /dev/bar" makes new pool called foo
> 
> 3. (2) does not create a file system

"zpool create" does create a filesystem.  The manpage doesn't say so
explicitly, but does document the -O flag, which only makes sense if a
filessytem is created to apply the properties to:

  -O file-system-property=value [-O file-system-property=value] ...

        Sets the given file system properties in the root file system
        of the pool. See zfs(8) Properties for a list of valid prop-
        erties that can be set.

 
> 4. After (2), /foo is mounted and ready for writing
> 
> 5. (4) violates (1)

-- 
	Dan Nelson
	dnelson@allantgroup.com