From owner-freebsd-fs@FreeBSD.ORG Wed Mar 24 17:24:06 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 B0ED11065679; Wed, 24 Mar 2010 17:24:06 +0000 (UTC) (envelope-from spate@mac.com) Received: from asmtpout024.mac.com (asmtpout024.mac.com [17.148.16.99]) by mx1.freebsd.org (Postfix) with ESMTP id 9BDA18FC1E; Wed, 24 Mar 2010 17:24:06 +0000 (UTC) MIME-version: 1.0 Content-transfer-encoding: 7BIT Content-type: text/plain; charset=us-ascii Received: from [10.0.1.4] ([75.44.206.54]) by asmtp024.mac.com (Sun Java(tm) System Messaging Server 6.3-8.01 (built Dec 16 2008; 32bit)) with ESMTPA id <0KZS00DYXR034D00@asmtp024.mac.com>; Wed, 24 Mar 2010 10:24:06 -0700 (PDT) X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 ipscore=0 phishscore=0 bulkscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx engine=5.0.0-0908210000 definitions=main-1003240153 From: Steve Pate In-reply-to: <4BAA3E25.9040108@icyb.net.ua> Date: Wed, 24 Mar 2010 10:24:03 -0700 Message-id: <2FF0A3E3-AF2F-4674-8648-FC01EC87445E@mac.com> References: <4BAA3E25.9040108@icyb.net.ua> To: Andriy Gapon X-Mailer: Apple Mail (2.1077) Cc: freebsd-fs@freebsd.org, Pawel Jakub Dawidek 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 17:24:06 -0000 I'm really not familiar with the FreeBSD development process so I apologize if I'm asking questions which appear naive. We'd like to ship a FreeBSD-based product by early next year that contains ZFS with de-dup. From what I see, FreeBSD seems to be tracking Solaris in terms of taking stable versions of ZFS. In other words, you're taking the version of ZFS that will next move from Open Solaris to Solaris. Is that correct? >From what I understand FreeBSD 8-STABLE includes ZFS version 14, which brings it to parity with Solaris 10. ZFS version 21 contains de-duplication so is quite a long way ahead of where FreeBSD is today. This implies that it will take quite some time for ZFS + de-dupe to get into a stable version of FreeBSD. Correct? Now, if we were to port ZFS version 22 (or later) to FreeBSD 8.x (version number TBD), how could we work with the FreeBSD team to get ZFS version 21+ back into a subsequent FreeBSD release? Cheers, Steve > on 24/03/2010 17:27 Steve Pate said the following: >> I work in a stealth mode startup and we'd be interested in porting the latest version of ZFS (incl dedup) over to FreeBSD. We have some very experienced filesystem engineers who can work on this. >> >> Does anyone have any idea if someone in the community has started this work? > > I guess that pjd is doing that, CC-ed. > > -- > Andriy Gapon