From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0ED17C4321E for ; Sun, 27 Nov 2022 12:05:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229583AbiK0MFA (ORCPT ); Sun, 27 Nov 2022 07:05:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51482 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229678AbiK0ME5 (ORCPT ); Sun, 27 Nov 2022 07:04:57 -0500 X-Greylist: delayed 1100 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Sun, 27 Nov 2022 04:04:56 PST Received: from mail.thelounge.net (mail.thelounge.net [91.118.73.15]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 94D75F022 for ; Sun, 27 Nov 2022 04:04:56 -0800 (PST) Received: from [10.10.10.2] (rh.vpn.thelounge.net [10.10.10.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) (Authenticated sender: h.reindl@thelounge.net) by mail.thelounge.net (THELOUNGE MTA) with ESMTPSA id 4NKmyx36PlzXLK; Sun, 27 Nov 2022 12:46:33 +0100 (CET) Message-ID: Date: Sun, 27 Nov 2022 12:46:33 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.5.0 Subject: Re: how do i fix these RAID5 arrays? Content-Language: en-US To: John Stoffel , Wols Lists Cc: David T-G , Linux RAID list References: <20221123220736.GD19721@jpo> <20221124032821.628cd042@nvm> <20221124211019.GE19721@jpo> <25474.28874.952381.412636@quad.stoffel.home> From: Reindl Harald Organization: the lounge interactive design In-Reply-To: <25474.28874.952381.412636@quad.stoffel.home> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-raid@vger.kernel.org Am 26.11.22 um 21:02 schrieb John Stoffel: > I call it a failure of the layering model. If you want RAID, use MD. > If you want logical volumes, then put LVM on top. Then put > filesystems into logical volumes. > > So much simpler... have you ever replaced a 6 TB drive and waited for the resync of mdadm in the hope in all that hours no other drive goes down? when your array is 10% used it's braindead when your array is new and empty it's braindead ZFS/BTRFS don't neeed to mirror/restore 90% nulls