From owner-freebsd-fs@FreeBSD.ORG Wed Mar 24 18:17:16 2010 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 02A11106564A; Wed, 24 Mar 2010 18:17:16 +0000 (UTC) (envelope-from sfourman@gmail.com) Received: from mail-pw0-f54.google.com (mail-pw0-f54.google.com [209.85.160.54]) by mx1.freebsd.org (Postfix) with ESMTP id C3FC48FC15; Wed, 24 Mar 2010 18:17:15 +0000 (UTC) Received: by pwj4 with SMTP id 4so5762723pwj.13 for ; Wed, 24 Mar 2010 11:17:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=lqBH1JqcyCpTeeodRZqfesqIZPNUDHczZ2pMNhl0KyU=; b=HHlrTZ2zJPXqu2s2xo1H1ZriyEbzAHgmtFIIQUsxVE16fgN92tpVFPvcCqRaQOboOs H7nrjLVbvieU0wTSCgMZ17qbspTFNzDTDApfGhRJV8MBAsS2tu21h/HJOiUcVAL8+5J0 WPd0D8W4tWf5xBJwe2jNZyEE4YEC2xe69Cqzs= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=IfjvDlI5G/gAj64u9Qx6DFq/ctlvFAns/703olmTQv1D5kIrJ27JJOQ59k7l65bqKo LSmRAdX9lAZOikPcNliC/K0+gmjznVXRRIryx38g/4E+SNPvt7R0toZ2FaujRBtgpKTu hgbUqJOhiTytyP/fTRPPOab4uReFa74NDZ7DY= MIME-Version: 1.0 Received: by 10.114.16.19 with SMTP id 19mr796502wap.92.1269454635183; Wed, 24 Mar 2010 11:17:15 -0700 (PDT) In-Reply-To: References: <4BAA3E25.9040108@icyb.net.ua> <2FF0A3E3-AF2F-4674-8648-FC01EC87445E@mac.com> Date: Wed, 24 Mar 2010 13:17:15 -0500 Message-ID: <11167f521003241117tc9821b8s58f3cdf018e6dd71@mail.gmail.com> From: "Sam Fourman Jr." To: Xin LI Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: freebsd-fs@freebsd.org, Steve Pate , Pawel Jakub Dawidek , Andriy Gapon Subject: Re: ZFS and Deduplication? X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 24 Mar 2010 18:17:16 -0000 > > In the past we broke ABI across ZFS v6 -> v13 update. =A0This basically > means one will have to update kernel and userland at the same time, > which would make the upgrade an one-way ticket (otherwise it would be > impossible to do operations like zpool import once kernel is upgraded > and restarted). =A0I think, if we plan to MFC it we need to make some > compatibility shims instead of using the current approach. > > Cheers, > -- > Xin LI http://www.delphij.net is it possible that ZFS v22 will be only FreeBSD 9.x or greater ? Sam Fourman Jr. Fourman Networks