From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from auth-3.ukservers.net ([217.10.138.152]:55671 "EHLO auth-3.ukservers.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755139AbeAMNSt (ORCPT ); Sat, 13 Jan 2018 08:18:49 -0500 Subject: Re: Growing RAID10 with active XFS filesystem References: <20180108192607.GS5602@magnolia> <20180108220139.GB16421@dastard> <5A548D31.4000002@youngman.org.uk> <20180109222523.GJ16421@dastard> <85f60b96-b2ca-be84-a7f6-380b545c3ac8@turmel.org> <20180111030723.GU16421@dastard> <5A58B901.7080609@youngman.org.uk> <20180112152538.2c4d8cd4@harpe.intellique.com> <5A58F5FB.7000101@youngman.org.uk> <20180112193710.1369f4ad@harpe.intellique.com> <8a8f7b91-80b5-3600-a82b-b55691d0ac6b@youngman.org.uk> <268a13e5-5075-7fb9-caae-8ab281737ff2@fnarfbargle.com> From: Wols Lists Message-ID: <5A5A0736.7090306@youngman.org.uk> Date: Sat, 13 Jan 2018 13:18:46 +0000 MIME-Version: 1.0 In-Reply-To: <268a13e5-5075-7fb9-caae-8ab281737ff2@fnarfbargle.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: linux-xfs-owner@vger.kernel.org List-ID: List-Id: xfs To: Brad Campbell , Emmanuel Florac Cc: Dave Chinner , linux-xfs@vger.kernel.org, linux-raid@vger.kernel.org On 13/01/18 12:30, Brad Campbell wrote: > > If I were to suggest an addition to the RAID wiki, it'd be to elaborate > on the *creation* time tuning a filesystem create tool does with the > RAID geometry, and to point out that once you grow the RAID, all > performance bets are off. I've never met a filesystem that would break > however. You know me ... If you read the wiki you'll notice I tend to be very much "pros and cons. Choose what works for you". This write-up will be very much in the same vein ... Cheers, Wol