From mboxrd@z Thu Jan 1 00:00:00 1970 From: Laurent CARON Subject: Re: mdadm + raid1 of 2 disks and now need to add more Date: Tue, 11 Apr 2006 19:25:58 +0200 Message-ID: <443BE6A6.5000202@unix-scripts.info> References: <20060411145142.GR29446@strugglers.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20060411145142.GR29446@strugglers.net> Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids Andy Smith wrote: > On Tue, Apr 11, 2006 at 04:41:30PM +0200, Shai wrote: >> I have two SCSI disks on raid1. >> Since I have lots of reads from that raid, I want to add two more >> disks to this raid so that read will be faster. >> >> How should I add the new disks? > > Is this possible with md currently: > > Create a RAID-10 on the two new disks specifying one disk missing > from each mirror. > > Then copy data over and add the two existing disks letting it > resync? Why not growing the array with 2 more disks?