From owner-freebsd-fs@FreeBSD.ORG Thu May 24 17:37:46 2007 Return-Path: X-Original-To: freebsd-fs@freebsd.org Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 1118D16A41F for ; Thu, 24 May 2007 17:37:46 +0000 (UTC) (envelope-from lists.freebsd@gmail.com) Received: from qb-out-0506.google.com (qb-out-0506.google.com [72.14.204.236]) by mx1.freebsd.org (Postfix) with ESMTP id ABA7913C44C for ; Thu, 24 May 2007 17:37:45 +0000 (UTC) (envelope-from lists.freebsd@gmail.com) Received: by qb-out-0506.google.com with SMTP id b14so439574qbc for ; Thu, 24 May 2007 10:37:44 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:references; b=g/s+jzFTPuiAsx16/MTNgV7I52ABn/xOCc2K1HWe/ViNMDPj+m/dTVb0x55AeyC2xieLwXWavCOdGJHiikvQCZo2Z38P6dm10g3maci5qjYolJMEmjfEwXZd111nZxAHjHpCM/wXh2LsWrMLqeUa+GpKyFmml6mDoQP7037I3yI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:references; b=AO9c3t/L2nyf5cZwVMc3rcIqGdmyxNtSN115H0uAuWrc4QqVe/RMuEqTCu4n/BpCUxEk0GCRmuCeVXNWGTlrOp+GASr+N3/aduxEPuXg6ZTfxWTaV0d31uTUQbPkBfnWMZPU3kCXWnlZ+ezGqB7kbJBXvr0neIrgTfd7l7uIlCc= Received: by 10.100.173.19 with SMTP id v19mr1846488ane.1180028264440; Thu, 24 May 2007 10:37:44 -0700 (PDT) Received: by 10.100.8.19 with HTTP; Thu, 24 May 2007 10:37:44 -0700 (PDT) Message-ID: <99c92b5f0705241037p2d84cb4dp2f19c81795b4f6e6@mail.gmail.com> Date: Thu, 24 May 2007 19:37:44 +0200 From: "Richard Noorlandt" To: freebsd-fs@freebsd.org In-Reply-To: <4c948f810705240924j17788423xde7c2cbfe3cfc036@mail.gmail.com> MIME-Version: 1.0 References: <99c92b5f0705240730o146c1bb4x326591687e445cd@mail.gmail.com> <82231.51840.qm@web30307.mail.mud.yahoo.com> <99c92b5f0705240855n4fb4c4d8xd5dbee26bdb52222@mail.gmail.com> <4c948f810705240924j17788423xde7c2cbfe3cfc036@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: Re: Growing UFS beyond 2 TB 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: Thu, 24 May 2007 17:37:46 -0000 2007/5/24, JH : > > On 5/24/07, Richard Noorlandt wrote: > > > > Will it be possible to create the tables with the current GPT tool, and > > later grow them safely with the new tool when it's available? > > > > It sounds like you're at the newfs stage this week, so it's the perfect > opportunity for testing. Actually I already have been doing some tests with array growth. That's how I found out that I was in trouble.... "Trust, but verify." > > Advice heard on the list is fine, but you really want to see the growfs > operation happen safely on your setup. Make the filesystem, fill it to > 90% full with a few big and little dummy files, then follow the modification > advice, create new files so you're back at 90% full, and verify that md5's > of the old files are still intact. The two professions where we find the > most time spent on rehearsals are acting and system administration. I totally agree with you here. Ideas from the mailinglist are very valuable, but I first want to test things myself. My data is too valuable for me to just do something and cross my fingers. Anyway, I guess I'll try the delete and recreate strategy on GPT when I have time, and see what happens. But I'm afraid it will destroy the data, so other/more suggestions are still welcome. Best regards, Richard