From owner-freebsd-fs@FreeBSD.ORG Mon Aug 24 14:17:58 2009 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 102D4106568D for ; Mon, 24 Aug 2009 14:17:58 +0000 (UTC) (envelope-from spawk@acm.poly.edu) Received: from acm.poly.edu (acm.poly.edu [128.238.9.200]) by mx1.freebsd.org (Postfix) with ESMTP id CE2478FC08 for ; Mon, 24 Aug 2009 14:17:56 +0000 (UTC) Received: (qmail 60650 invoked from network); 24 Aug 2009 14:17:36 -0000 Received: from unknown (HELO ?10.0.0.135?) (spawk@128.238.64.31) by acm.poly.edu with AES256-SHA encrypted SMTP; 24 Aug 2009 14:17:36 -0000 Message-ID: <4A92A0E9.1060508@acm.poly.edu> Date: Mon, 24 Aug 2009 10:17:13 -0400 From: Boris Kochergin User-Agent: Thunderbird 2.0.0.19 (X11/20090108) MIME-Version: 1.0 To: "Mikhail (Plus Plus)" References: <4A927CB3.3040402@plus-plus.su> <20090824125737.GA92643@noc.ntua.gr> <4A92902F.70606@plus-plus.su> In-Reply-To: <4A92902F.70606@plus-plus.su> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-fs@freebsd.org Subject: Re: need help with ZFS 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: Mon, 24 Aug 2009 14:17:58 -0000 Mikhail (Plus Plus) wrote: > Panagiotis Christias wrote: > > I would suggest you try FreeBSD 8.0 that includes the latest > version of >> ZFS (version 13), which fixed several problems present in 7.x. Then, >> check for crash dumps (see dumpon(8)), collect any available info and >> sent it to the list. >> > > Does that mean I will have to format my current zpool in order to > "upgrade" to ZFS v13? And if it is true then another problem is that I > have to backup current data somewhere before I'll be able to format > zpool to new version, but I cannot do this because server simply > crashes every time I try to copy that much of data to another hdd. > > Mikhail. > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" ZFS version 13 refers to two things: the ZFS code, and the on-disk format. Most, if not all of your problems will probably be resolved by upgrading to the new code, as found in 7.2-STABLE and 8.0. New versions of the code are backwards compatible with old on-disk formats. Should you decide to upgrade to the new on-disk format with "zfs set version=3" and "zpool upgrade," the process is documented as keeping your data intact. While it is always a good idea to back up your data before potentially-dangerous filesystem operations, I, along with many other people, have upgraded ZFS on-disk formats without issue. -Boris