From mboxrd@z Thu Jan 1 00:00:00 1970 From: Adam Luter Subject: Re: raidreconf success report Date: Tue, 5 Nov 2002 11:51:29 -0600 Sender: linux-raid-owner@vger.kernel.org Message-ID: <20021105175129.GD22883@smeagol> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8BIT Return-path: Content-Disposition: inline In-Reply-To: To: linux-raid@vger.kernel.org List-Id: linux-raid.ids Even if it can, I haven't heard of any filesystem resizers that could reduce. (But I could be easily wrong). -Adam On Tue, Nov 05, 2002 at 11:14:51AM -0600, Steve Brueggeman wrote: > This is the first I've heard of raidreconf. > > Where is it, and can it be used to reduce a RAID-5 configuration??? > > Steve Brueggeman > > On Sun, 3 Nov 2002 16:33:09 +0000 (GMT), you wrote: > > >I am happy to report successfully using raidreconf to grow a 7 x 73GB > >RAID5 to 10 x 73GB RAID5. > > > >The operation took around 16 hours. Machine is a 4-way xeon with 6GB RAM; > >though the kernel on the CD I booted from only supported UP/1GB RAM. I'm > >not sure whether the extra CPUs/memory would have helped performance. > >Disks are 10kRPM scsi disks. > > > >The sequence of commands was: > > > >boot from cd (raid is root filesystem) > >reiserfsck /dev/md0 > >raidstop /dev/md0 > >raidreconf -o oldraidtab -n newraidtab -m /dev/md0 > >go home and sleep! > >reiserfsck /dev/md0 > >resize_reiserfs /dev/md0 > >reiserfsck /dev/md0 > >then reboot, and machine carried on as before! > > > >No errors were reported at any stage. > > > >All very impressive. Thanks for the good work!