From mboxrd@z Thu Jan 1 00:00:00 1970 From: Phil Turmel Subject: Re: mdadm does not create partition devices whatsoever, "partitionable" functionality broken Date: Fri, 13 May 2011 15:39:54 -0400 Message-ID: <4DCD890A.8000706@turmel.org> References: <4DCD4A83.8060202@pulseforce.com> <4DCD6119.3080705@turmel.org> <4DCD67EF.1070602@pulseforce.com> <4DCD6B27.70402@pulseforce.com> <20110513234055.4307c536@natsu> <4DCD72AF.1070809@pulseforce.com> <4DCD75FE.8010703@turmel.org> <4DCD7E78.6050000@pulseforce.com> <4DCD84E1.3040704@turmel.org> <20110514013221.552dc8ef@natsu> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20110514013221.552dc8ef@natsu> Sender: linux-raid-owner@vger.kernel.org To: Roman Mamedov Cc: Christopher White , linux-raid@vger.kernel.org List-Id: linux-raid.ids On 05/13/2011 03:32 PM, Roman Mamedov wrote: > On Fri, 13 May 2011 15:22:09 -0400 > Phil Turmel wrote: > >> I always use LVM. While the lack of attention to MD partitions might >> justify that, the real reason is the sheer convenience of creating, >> manipulating, and deleting logical volumes on the fly. While you may not >> need it *now*, when you discover that you *do* need it, you won't be able to >> use it. Online resizing of any of your LVs is the killer feature. > > Can it defragment non-contiguous LVs yet? Automatically, no (so far as I've seen). If you have a suitable free space chunk in the group, though, you can manually create a contiguous mirror, let it sync, then remove the original segments. Do it twice if placement is critical. Phil