From owner-freebsd-fs@FreeBSD.ORG Mon Dec 21 02:15:22 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 4B32D106566C for ; Mon, 21 Dec 2009 02:15:22 +0000 (UTC) (envelope-from wonslung@gmail.com) Received: from ey-out-2122.google.com (ey-out-2122.google.com [74.125.78.26]) by mx1.freebsd.org (Postfix) with ESMTP id DDEBE8FC13 for ; Mon, 21 Dec 2009 02:15:21 +0000 (UTC) Received: by ey-out-2122.google.com with SMTP id d26so2366336eyd.3 for ; Sun, 20 Dec 2009 18:15:21 -0800 (PST) MIME-Version: 1.0 Received: by 10.216.93.14 with SMTP id k14mr2187868wef.152.1261361720985; Sun, 20 Dec 2009 18:15:20 -0800 (PST) In-Reply-To: <4B2ED222.4050304@feral.com> References: <20091030223225.GI5120@datapipe.com> <4AEB6D79.5070703@feral.com> <4B2E0FA9.1050003@fsn.hu> <4B2E65FC.9070609@feral.com> <4B2E95AE.9040402@fsn.hu> <4B2ED222.4050304@feral.com> Date: Sun, 20 Dec 2009 21:15:20 -0500 Message-ID: From: Thomas Burgess To: Matthew Jacob Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-fs@freebsd.org Subject: Re: Plans for Logged/Journaled UFS 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, 21 Dec 2009 02:15:22 -0000 yes, it just saved me bit time. I had a raid controller failing on me. It cased errors across several drives. I had set up ZFS in passthrough mode so it was able to find and repair the errors. Without scrubs and this feature i'd just be SOL On Sun, Dec 20, 2009 at 8:40 PM, Matthew Jacob wrote: > > end to end data integrity via checksums is great. >> >> >> > Mandatory given how close disk densities are to random bit failure. > >