From owner-freebsd-fs@FreeBSD.ORG  Mon Feb 10 19:30:01 2014
Return-Path: <owner-freebsd-fs@FreeBSD.ORG>
Delivered-To: freebsd-fs@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 23DD3899
 for <freebsd-fs@freebsd.org>; Mon, 10 Feb 2014 19:30:01 +0000 (UTC)
Received: from mail-pa0-x22d.google.com (mail-pa0-x22d.google.com
 [IPv6:2607:f8b0:400e:c03::22d])
 (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits))
 (No client certificate requested)
 by mx1.freebsd.org (Postfix) with ESMTPS id EC4481F88
 for <freebsd-fs@freebsd.org>; Mon, 10 Feb 2014 19:30:00 +0000 (UTC)
Received: by mail-pa0-f45.google.com with SMTP id lf10so6597541pab.32
 for <freebsd-fs@freebsd.org>; Mon, 10 Feb 2014 11:30:00 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
 h=mime-version:sender:date:message-id:subject:from:to:content-type;
 bh=y6ZtYdgxiNPkjwA2g6iGXyDKUsZeytmQs+1u0TagVMk=;
 b=IAZKekKbvKBPIfzX9CThJNyqTcFxKD2s40dPhzNZgydF2Cqxy+95vq/1n0fij64kub
 ElVYvAO9WQrctV+fA4LBJQq5vK03IE9G24foBUEpYHjioCd0ysO4xXfv7lbbBbfFFNJ5
 eSwZT3NeOxMUt9itg74+qTCafIbMioFw5WeWMRRfsaDKYicsl5G8Vy8bNuA6gSIUJPdg
 LmXbwSX5LJtrJ0DaY4j277QWn6XUMkbUUBUHgGxaMgjY/81+kMxXa2JP0XBMo5NJdAWV
 K9QAt88onkKXNvSPnZLlPmxHEjCn4epSr0imAQsW7vATfM71sgfw5ry1J8NOChdsWbfW
 FxjQ==
MIME-Version: 1.0
X-Received: by 10.66.65.204 with SMTP id z12mr27368992pas.60.1392060600582;
 Mon, 10 Feb 2014 11:30:00 -0800 (PST)
Sender: dan.uber@gmail.com
Received: by 10.68.144.167 with HTTP; Mon, 10 Feb 2014 11:30:00 -0800 (PST)
Date: Mon, 10 Feb 2014 14:30:00 -0500
X-Google-Sender-Auth: YtU788uePNlJhycfwtJb0XOZFFY
Message-ID: <CANWh_rV2JU=fydvg-xF+i72eK-W-f4gh5h68qJVExpnZMMvXSA@mail.gmail.com>
Subject: Greetings Noble BSD Gods
From: Dan Uber <dan@hubrisgame.com>
To: freebsd-fs@freebsd.org
Content-Type: text/plain; charset=ISO-8859-1
X-Content-Filtered-By: Mailman/MimeDel 2.1.17
X-BeenThere: freebsd-fs@freebsd.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: Filesystems <freebsd-fs.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-fs>,
 <mailto:freebsd-fs-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-fs/>
List-Post: <mailto:freebsd-fs@freebsd.org>
List-Help: <mailto:freebsd-fs-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-fs>,
 <mailto:freebsd-fs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 10 Feb 2014 19:30:01 -0000

I am but a simple mortal respectfully inquiring about the future potential
of the ZFS spacemap_histogram feature offering write support.

I have a 30TB array that was spawned in FreeNAS (foolish mistake, yes, I
know) that I would really love to migrate to FreeBSD 10, but I'm getting
the following when I try to import it.

root@Galaxy:/home/ub3r # zpool import Galaxy
This pool uses the following feature(s) not supported by this system:
        com.delphix:spacemap_histogram (Spacemaps maintain space
histograms.)
All unsupported features are only required for writing to the pool.
The pool can be imported using '-o readonly=on'.
cannot import 'Galaxy': unsupported version or feature

At first I thought this might be something easy to implement myself, then I
was informed that only the FreeBSD-FS Overlords are capable of dabbling in
such witchcraft.

Thank you for your time, I greatly appreciate it.

Take care,
-Dan Uber