From owner-freebsd-fs@FreeBSD.ORG Sat Dec 22 03:34:07 2007 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 E87F916A418 for ; Sat, 22 Dec 2007 03:34:07 +0000 (UTC) (envelope-from jklimek@gmail.com) Received: from wa-out-1112.google.com (wa-out-1112.google.com [209.85.146.176]) by mx1.freebsd.org (Postfix) with ESMTP id A984E13C45A for ; Sat, 22 Dec 2007 03:34:07 +0000 (UTC) (envelope-from jklimek@gmail.com) Received: by wa-out-1112.google.com with SMTP id k17so973988waf.3 for ; Fri, 21 Dec 2007 19:34:07 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=5RTqKqBEnj4banomoF7ADNU7G1DGlv3VVfVhnt3FLzc=; b=tcAWwqdY/gK2y5LoJSMClIT9wyNIKQ5C1E5PHFdm6uJTvfwKsQOCt19A9ygAgjNeocRMyLwMtqkJhMb/IjlNe3psfiRJ1fKljcoQZ7X8FZJqmAerI/7eiLO7STtGD4aI++tECRVEQzZHRilxxCWPHgk+R2NXO8uC2gQe9s5dU80= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=BDSsDNIaUX2AGRddEv44Bgn3nxpguijZtttoq2JkEm2ZMA3QUKCfgB4fE3/bmbhOvQxsRhzHEwbzGzL821pLYQXo1qGAQLhQVlHO/z5aFpeaD+odwGhwSqxmiU2f/c+e+vNmqcPsjB7rZzf5hZ1Cz7eHaQ2hhvhPMIUL/aPy9U0= Received: by 10.142.110.3 with SMTP id i3mr992375wfc.178.1198294447242; Fri, 21 Dec 2007 19:34:07 -0800 (PST) Received: by 10.142.254.3 with HTTP; Fri, 21 Dec 2007 19:34:07 -0800 (PST) Message-ID: Date: Fri, 21 Dec 2007 22:34:07 -0500 From: "John Klimek" To: "Wes Morgan" In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: Cc: freebsd-fs@freebsd.org Subject: Re: How safe is ZFS to use for a home user? 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: Sat, 22 Dec 2007 03:34:08 -0000 Has anybody ever lost data due to any bugs or anything like that? I'm going to use this ZFS as my primary storage medium (and poor man's backup solution), so I would be devastated if I lost my entire array due to a bug or other issue (aside from losing two hard drives in a three hard drive RAID-Z array). Also, my system is going to have 3x 400 GB (RAID-Z) and 1x 80 GB (Standalone ZFS) and has 1.5 GB RAM (P3-1.0 GHz). What should I be setting my kmem and kmem_max to (or whatever) to avoid this bug I keep hearing about? On Dec 21, 2007 10:20 PM, Wes Morgan wrote: > > On Fri, 21 Dec 2007, John Klimek wrote: > > > I'm looking to setup a file server using RAID 5 (or the equivilant > > RAID-Z) and I'm interested in using ZFS. > > > > It looks like my primary options are Solaris or FreeBSD and since I'm > > beginning to really dislike Solaris I'm leaning towards using FreeBSD > > however I've heard that there are some issues with ZFS on FreeBSD > > specifically regarding some "kmap_mem" or something like that. > > > > Can anybody tell me if ZFS is safe to use for home users? I'm just > > looking to setup RAID-Z with 3x 300 GB and another pool for 1x80GB (I > > guess). > > I got tired of waiting for fsck's and have been using zfs for both my i386 > laptop and amd64 media server. I had a couple panics on the media server > before I upgraded to 4gb of ram, but basically none since then. On the > laptop, I can't recall having any, and it only has 1.5gb. > > I think that by the design of zfs, the panic might not even have a chance > of damaging your data, only losing a write that had not completed, but I > can't say I am an expert. > > In short, it has not given me any problems at all on two different > configurations. > >