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 8EBC2C433EF for ; Sun, 3 Jul 2022 20:07:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232357AbiGCUHr (ORCPT ); Sun, 3 Jul 2022 16:07:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34516 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229549AbiGCUHq (ORCPT ); Sun, 3 Jul 2022 16:07:46 -0400 Received: from mail1.merlins.org (magic.merlins.org [209.81.13.136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 407342BFC for ; Sun, 3 Jul 2022 13:07:44 -0700 (PDT) Received: from lfbn-idf3-1-1056-96.w90-46.abo.wanadoo.fr ([90.46.126.96]:56466 helo=sauron.svh.merlins.org) by mail1.merlins.org with esmtpsa (Cipher TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.94.2 #2) id 1o85AF-00085Z-2a by authid with srv_auth_plain; Sun, 03 Jul 2022 13:07:42 -0700 Received: from merlin by sauron.svh.merlins.org with local (Exim 4.92) (envelope-from ) id 1o85sb-00DAka-2q; Sun, 03 Jul 2022 13:07:41 -0700 Date: Sun, 3 Jul 2022 13:07:41 -0700 From: Marc MERLIN To: linux-raid@vger.kernel.org Subject: Is it correct that raid5 cannot be converted from Consistency Policy: bitmap to ppl? Message-ID: <20220703200741.GA3138296@merlins.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Sysadmin: BOFH X-URL: http://marc.merlins.org/ X-SA-Exim-Connect-IP: 90.46.126.96 X-SA-Exim-Mail-From: marc@merlins.org Precedence: bulk List-ID: X-Mailing-List: linux-raid@vger.kernel.org Is there any way around this, or not without a full reformat/rebuild? gargamel:~# mdadm --query --detail /dev/md5 /dev/md5: Version : 1.2 Creation Time : Tue Jan 21 10:35:52 2014 Raid Level : raid5 Array Size : 15627542528 (14903.59 GiB 16002.60 GB) Used Dev Size : 3906885632 (3725.90 GiB 4000.65 GB) Raid Devices : 5 Total Devices : 5 Persistence : Superblock is persistent Intent Bitmap : Internal Update Time : Sun Jul 3 03:02:01 2022 State : active, checking Active Devices : 5 Working Devices : 5 Failed Devices : 0 Spare Devices : 0 Layout : left-symmetric Chunk Size : 512K Consistency Policy : bitmap Check Status : 99% complete Name : gargamel.svh.merlins.org:5 (local to host gargamel.svh.merlins.org) UUID : ec672af7:a66d9557:2f00d76c:38c9f705 Events : 642977 Number Major Minor RaidDevice State 0 8 193 0 active sync /dev/sdm1 6 8 177 1 active sync /dev/sdl1 2 8 209 2 active sync /dev/sdn1 3 8 1 3 active sync /dev/sda1 5 8 17 4 active sync /dev/sdb1 gargamel:~# mdadm --grow --consistency-policy=ppl /dev/md5 mdadm: Current consistency policy is bitmap, cannot change to ppl Kernel 5.16. Thanks, Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Home page: http://marc.merlins.org/ | PGP 7F55D5F27AAF9D08