From owner-freebsd-fs@freebsd.org  Wed Jul  8 21:39:01 2020
Return-Path: <owner-freebsd-fs@freebsd.org>
Delivered-To: freebsd-fs@mailman.nyi.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1])
 by mailman.nyi.freebsd.org (Postfix) with ESMTP id 15E9D355B84;
 Wed,  8 Jul 2020 21:39:01 +0000 (UTC)
 (envelope-from mmacy@freebsd.org)
Received: from smtp.freebsd.org (smtp.freebsd.org
 [IPv6:2610:1c1:1:606c::24b:4])
 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
 key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256
 client-signature RSA-PSS (4096 bits) client-digest SHA256)
 (Client CN "smtp.freebsd.org",
 Issuer "Let's Encrypt Authority X3" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id 4B2CP06swrz4698;
 Wed,  8 Jul 2020 21:39:00 +0000 (UTC)
 (envelope-from mmacy@freebsd.org)
Received: from mail-lj1-f173.google.com (mail-lj1-f173.google.com
 [209.85.208.173])
 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))
 (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK))
 (Authenticated sender: mmacy)
 by smtp.freebsd.org (Postfix) with ESMTPSA id C9E481B97A;
 Wed,  8 Jul 2020 21:39:00 +0000 (UTC)
 (envelope-from mmacy@freebsd.org)
Received: by mail-lj1-f173.google.com with SMTP id e8so13866ljb.0;
 Wed, 08 Jul 2020 14:39:00 -0700 (PDT)
X-Gm-Message-State: AOAM533oPBHjaOhWxUQDUAkAC8m8IiXzWr5Fdj+NmkiCesIo2BaXA8gr
 +jfM8iGj9Kh0RXC8xY6tAR0JVBTFs84wZbSWFhE=
X-Google-Smtp-Source: ABdhPJwL4BO4hAzjODcNu461p3QculXkL1tFgcDVJ0yVuQNmP6PstV61cERF9UhP1rNOWpZzYuZikcnz3+/5eAHIFnI=
X-Received: by 2002:a05:651c:307:: with SMTP id
 a7mr33532041ljp.297.1594244339383; 
 Wed, 08 Jul 2020 14:38:59 -0700 (PDT)
MIME-Version: 1.0
References: <CAPrugNp8xQiz-Sun0Z2Ay7H0qE_09jm1NFPJcgYmNH-fs5wezg@mail.gmail.com>
In-Reply-To: <CAPrugNp8xQiz-Sun0Z2Ay7H0qE_09jm1NFPJcgYmNH-fs5wezg@mail.gmail.com>
From: Matthew Macy <mmacy@freebsd.org>
Date: Wed, 8 Jul 2020 14:38:48 -0700
X-Gmail-Original-Message-ID: <CAPrugNqJdGKVrtAHyHrBAvLYHgiV2B63=0FeH5vRbgeSwFCS0Q@mail.gmail.com>
Message-ID: <CAPrugNqJdGKVrtAHyHrBAvLYHgiV2B63=0FeH5vRbgeSwFCS0Q@mail.gmail.com>
Subject: Further note - Re: CFT for vendor openzfs
To: freebsd-fs <freebsd-fs@freebsd.org>, freebsd-hackers@freebsd.org, 
 freebsd-current <freebsd-current@freebsd.org>
Content-Type: text/plain; charset="UTF-8"
X-BeenThere: freebsd-fs@freebsd.org
X-Mailman-Version: 2.1.33
Precedence: list
List-Id: Filesystems <freebsd-fs.freebsd.org>
List-Unsubscribe: <https://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: <https://lists.freebsd.org/mailman/listinfo/freebsd-fs>,
 <mailto:freebsd-fs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 08 Jul 2020 21:39:01 -0000

Do NOT zpool upgrade unless you are willing to live without the
ability to ever rollback to the legacy zfs kmod.

On Wed, Jul 8, 2020 at 2:31 PM Matthew Macy <mmacy@freebsd.org> wrote:
>
> Checkout updated HEAD:
> % git clone https://github.com/mattmacy/networking.git -b
> projects/openzfs_vendor freebsd
>
> Checkout updated openzfs in to sys/contrib:
> % git clone https://github.com/zfsonfreebsd/ZoF.git -b
> projects/openzfs_vendor freebsd/sys/contrib/openzfs
>
> Build world and kernel with whatever your usual configuration is.
> Where possible the openzfs kmod is backward compatible with the cmd
> utils in HEAD so common operations work with existing tools and the
> new kmod. In the projects/openzfs_vendor branch of ZoF ozfs libraries
> are backward compatible with the zfs kmod in HEAD. Although ideally
> one would test this in a separate boot environment, the
> interoperability should allow one to rollback without too much
> difficulty.
>
> Thanks in advance for your time.
> -M