From owner-freebsd-questions@FreeBSD.ORG Tue Sep 13 03:43:30 2011 Return-Path: Delivered-To: questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5B18F106564A for ; Tue, 13 Sep 2011 03:43:30 +0000 (UTC) (envelope-from toomas.aas@raad.tartu.ee) Received: from kuller.raad.tartu.ee (kuller.raad.tartu.ee [213.184.43.8]) by mx1.freebsd.org (Postfix) with ESMTP id 0AE658FC15 for ; Tue, 13 Sep 2011 03:43:29 +0000 (UTC) Received: from kuller.raad.tartu.ee (localhost [127.0.0.1]) by kuller.raad.tartu.ee (Postfix) with ESMTP id 9BE7439864; Tue, 13 Sep 2011 06:43:28 +0300 (EEST) X-Virus-Scanned: amavisd-new at post.raad.tartu.ee Received: from kuller.raad.tartu.ee ([127.0.0.1]) by kuller.raad.tartu.ee (kuller.raad.tartu.ee [127.0.0.1]) (amavisd-new, port 10024) with LMTP id REvQPZQ3KtrC; Tue, 13 Sep 2011 06:43:27 +0300 (EEST) Received: by kuller.raad.tartu.ee (Postfix, from userid 80) id 4491A3982C; Tue, 13 Sep 2011 06:43:27 +0300 (EEST) Received: from 76.20.190.90.dyn.estpak.ee (76.20.190.90.dyn.estpak.ee [90.190.20.76]) by webmail.raad.tartu.ee (Horde Framework) with HTTP; Tue, 13 Sep 2011 06:43:27 +0300 Message-ID: <20110913064327.10411iktiavkkzno@webmail.raad.tartu.ee> Date: Tue, 13 Sep 2011 06:43:27 +0300 From: Toomas Aas To: Chuck Swiger References: <20110913001445.15346yix2qz78j4s@webmail.raad.tartu.ee> <8732CB9D-4085-47B6-A9F2-0EC9A3351D26@mac.com> In-Reply-To: <8732CB9D-4085-47B6-A9F2-0EC9A3351D26@mac.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; DelSp="Yes"; format="flowed" Content-Disposition: inline Content-Transfer-Encoding: 7bit User-Agent: Internet Messaging Program (IMP) H3 (4.3.7) X-Originating-IP: 90.190.20.76 X-Mailman-Approved-At: Tue, 13 Sep 2011 11:13:11 +0000 Cc: questions@freebsd.org Subject: Re: Crash when copying large files X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 13 Sep 2011 03:43:30 -0000 Hello Chuck! > How big are your multi-GB files, anyway? They are approximately between 1 and 4 GB. > > If you want a workaround to avoid the crash, consider using either > rsync or dump/restore to copy the filesystem, rather than using tar. > Thanks for the suggestions, I'll try rsync. The initial idea I had was copy most of the files (which are fairly static) over with tar, which takes ca 1.5 hours, and then run rsync to catch these changes that had happened during that 1.5h period. I may as well just use rsync for the entire process. Past experience on other FreeBSD systems has taught me to avoid dump/restore for large filesystems, because it seems to be an order of magnitude slower than tar. -- Toomas Aas