From debbugs-submit-bounces@debbugs.gnu.org Thu May 28 11:15:13 2020 Received: (at submit) by debbugs.gnu.org; 28 May 2020 15:15:13 +0000 Received: from localhost ([127.0.0.1]:52791 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jeKFQ-0003cU-PS for submit@debbugs.gnu.org; Thu, 28 May 2020 11:15:13 -0400 Received: from lists.gnu.org ([209.51.188.17]:49366) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jeI9n-00006M-VQ for submit@debbugs.gnu.org; Thu, 28 May 2020 09:01:12 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:37662) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jeI9n-0000kJ-O1 for bug-parted@gnu.org; Thu, 28 May 2020 09:01:11 -0400 Received: from mail.aixigo.de ([5.145.142.10]:34668) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jeI9l-0004nc-Jq for bug-parted@gnu.org; Thu, 28 May 2020 09:01:11 -0400 Received: from srvvm01.ac.aixigo.de (mail.ac.aixigo.de [172.19.96.11]) by gate5a.ac.aixigo.de (OpenSMTPD) with ESMTPS id 61ec8042 (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256:NO) for ; Thu, 28 May 2020 15:00:44 +0200 (CEST) Received: from dpcl082.ac.aixigo.de (dpcl082.ac.aixigo.de [172.19.97.128]) by srvvm01.ac.aixigo.de (8.15.2/8.15.2/Debian-14~deb10u1) with ESMTP id 04SD0hgc987059; Thu, 28 May 2020 15:00:43 +0200 To: bug-parted@gnu.org From: Harald Dunkel Subject: automatic alignment Message-ID: <1bc50cd8-88f1-b4d3-ecc7-8d848a89ccf5@aixigo.com> Date: Thu, 28 May 2020 15:00:43 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.1 MIME-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Virus-Scanned: clamav-milter 0.102.2 at srvvm01.ac.aixigo.de X-Virus-Status: Clean Received-SPF: pass client-ip=5.145.142.10; envelope-from=harald.dunkel@aixigo.com; helo=mail.aixigo.de X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/28 09:00:44 X-ACL-Warn: Detected OS = ??? X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-Spam-Score: -1.4 (-) X-Debbugs-Envelope-To: submit X-Mailman-Approved-At: Thu, 28 May 2020 11:15:07 -0400 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -2.4 (--) Hi folks, Finding a good alignment appears to be a pretty complex task, esp. for some RAID devices, so I wonder if this could be better supported in parted? The current [bzzzzzzzz] The resulting partition is not properly aligned for best performance. for all 2**n is *more* than annoying. For my lsi RAID I had to use Number Start End Size File system Name Flags 1 1536s 46880782847s 46880781312s export following the guidelines on [1]. Obviously the align-check option has some deeper knowledge about a good alignment, but it doesn't tell. :-( Regards Harri [1] https://bdoga.com/how-to-fix-warning-device-is-not-properly-aligned-with-parted/ From debbugs-submit-bounces@debbugs.gnu.org Thu May 28 19:57:44 2020 Received: (at 41577-close) by debbugs.gnu.org; 28 May 2020 23:57:44 +0000 Received: from localhost ([127.0.0.1]:53288 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jeSP9-0007of-Vx for submit@debbugs.gnu.org; Thu, 28 May 2020 19:57:44 -0400 Received: from us-smtp-2.mimecast.com ([207.211.31.81]:46918 helo=us-smtp-delivery-1.mimecast.com) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jeSP7-0007oU-62 for 41577-close@debbugs.gnu.org; Thu, 28 May 2020 19:57:42 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1590710260; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=exidwzXuCfrQ9H0Pn+eJZ9E2M/DesFvUvjahf/ax+W0=; b=TpmvEsim5MH4mEh4MdoEOZsoOqf2C+DzVZwU5UXVM3EWR9ct0fU+WXUNj0f3i/NnkebBCb aGlBKvF2TrM7bmdRdLp+qbvxDLM8JeKuZnwJwAY9pLWbx8bHGN0g+jCZH2Vc3m69RffWgF nbX+3fszG0hrtb8n80yAtnoHCXcSy80= Received: from mail-pl1-f200.google.com (mail-pl1-f200.google.com [209.85.214.200]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-511-ZDs5uHC5NuaYBG96iqSEwQ-1; Thu, 28 May 2020 19:57:36 -0400 X-MC-Unique: ZDs5uHC5NuaYBG96iqSEwQ-1 Received: by mail-pl1-f200.google.com with SMTP id f12so626120plr.14 for <41577-close@debbugs.gnu.org>; Thu, 28 May 2020 16:57:36 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=exidwzXuCfrQ9H0Pn+eJZ9E2M/DesFvUvjahf/ax+W0=; b=o6BOKyLOREFlQXKDAw2jijhWXhBAa/XSdem+ECoFDXFdR1UvOQ3c05BmYz6pypCn4r O195c9Hm1dmeRkp//1o/CeMDmFGCuwh66nZXhVCQGcDd5hIa2tMcSoi5vI/Sp7jWjzkx Nkk/osxfhkeYYdZHBdXYElABlGTHTUM9FN0bhNdiWH6sPbRPcLckmFNzHualrTgxCtYn 7zy0cmP3JxSL9XGK+gg1qhO5exFk8fx59cQuu1QFpQV6Alp2NUN83usGt4gsK91caSnU S6LKEB88RdF1QtZnKy6z2A0Z+kDFEB4iVLVwT2OnMI6xSgSCAmAx9ra5kVyJ/QHURBWw Dzvw== X-Gm-Message-State: AOAM533zkg1FJ0LbIVP67r7e4iTbFT9kpNbGwij7NDglcBcxGVfX7pHI 8oxhO+Fm29pWvieIImBf7jUXeN+ynS4YtGYv0tcQVnZ/ql/M614xBldxsgp/7kHaLeuOjHjZCkB dcZdtnunYWVPwX13TYSJzfWs= X-Received: by 2002:a65:5645:: with SMTP id m5mr5354191pgs.434.1590710255420; Thu, 28 May 2020 16:57:35 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxq3A8wUZwxqpRRPg64SgZgMITPwVyDJ7fAhFiYKnhDPj1STU8G89Q1jYM2i5+XISE8T94ang== X-Received: by 2002:a65:5645:: with SMTP id m5mr5354177pgs.434.1590710255092; Thu, 28 May 2020 16:57:35 -0700 (PDT) Received: from ohop.brianlane.com (c-73-157-81-114.hsd1.wa.comcast.net. [73.157.81.114]) by smtp.gmail.com with ESMTPSA id m18sm5949979pjl.14.2020.05.28.16.57.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 May 2020 16:57:34 -0700 (PDT) Date: Thu, 28 May 2020 16:57:32 -0700 From: "Brian C. Lane" To: Harald Dunkel Subject: Re: bug#41577: automatic alignment Message-ID: <20200528235732.GF49241@ohop.brianlane.com> References: <1bc50cd8-88f1-b4d3-ecc7-8d848a89ccf5@aixigo.com> MIME-Version: 1.0 In-Reply-To: <1bc50cd8-88f1-b4d3-ecc7-8d848a89ccf5@aixigo.com> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 41577-close Cc: 41577-close@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) On Thu, May 28, 2020 at 03:00:43PM +0200, Harald Dunkel wrote: > Hi folks, > > Finding a good alignment appears to be a pretty complex task, esp. > for some RAID devices, so I wonder if this could be better supported > in parted? The current > > [bzzzzzzzz] The resulting partition is not properly aligned for best performance. > > for all 2**n is *more* than annoying. For my lsi RAID I had to use > > Number Start End Size File system Name Flags > 1 1536s 46880782847s 46880781312s export > > following the guidelines on [1]. > > Obviously the align-check option has some deeper knowledge about > a good alignment, but it doesn't tell. :-( Yeah, it's complicated :) But if you use the latest parted it will tell you more if you try to create a mis-aligned partition: Start? 8s End? 100% Warning: You requested a partition from 4096B to 1074MB (sectors 8..2097151). The closest location we can manage is 17.4kB to 1074MB (sectors 34..2097118). Is this still acceptable to you? Yes/No? y Warning: The resulting partition is not properly aligned for best performance: 34s % 2048s != 0s Ignore/Cancel? This means that it needs to be multiples of 2048 sectors to be aligned (this example is just an example with a disk image). Brian -- Brian C. Lane (PST8PDT) - weldr.io - lorax - parted - pykickstart From debbugs-submit-bounces@debbugs.gnu.org Fri May 29 07:17:34 2020 Received: (at 41577) by debbugs.gnu.org; 29 May 2020 11:17:35 +0000 Received: from localhost ([127.0.0.1]:53977 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jed14-0005zr-GY for submit@debbugs.gnu.org; Fri, 29 May 2020 07:17:34 -0400 Received: from mail.aixigo.de ([5.145.142.10]:35004) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jeYCK-0006iJ-NJ for 41577@debbugs.gnu.org; Fri, 29 May 2020 02:08:53 -0400 Received: from srvvm01.ac.aixigo.de (mail.ac.aixigo.de [172.19.96.11]) by gate5a.ac.aixigo.de (OpenSMTPD) with ESMTPS id 8b36b975 (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256:NO) for <41577@debbugs.gnu.org>; Fri, 29 May 2020 08:08:50 +0200 (CEST) Received: from dpcl082.ac.aixigo.de (dpcl082.ac.aixigo.de [172.19.97.128]) by srvvm01.ac.aixigo.de (8.15.2/8.15.2/Debian-14~deb10u1) with ESMTP id 04T68oAT1118521; Fri, 29 May 2020 08:08:50 +0200 Subject: Re: bug#41577: closed (Re: bug#41577: automatic alignment) To: 41577@debbugs.gnu.org References: <20200528235732.GF49241@ohop.brianlane.com> <1bc50cd8-88f1-b4d3-ecc7-8d848a89ccf5@aixigo.com> From: Harald Dunkel Message-ID: <5d8275ec-28b5-b4f0-eff4-42484678d173@aixigo.com> Date: Fri, 29 May 2020 08:08:50 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Virus-Scanned: clamav-milter 0.102.2 at srvvm01.ac.aixigo.de X-Virus-Status: Clean X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 41577 X-Mailman-Approved-At: Fri, 29 May 2020 07:17:23 -0400 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) Much better, but IMHO there is still room for improvement. It could say (for example) (parted) mkpart primary 100000s 199999s Warning: The resulting partition is not properly aligned for best performance. Suggested is sectors 100352 .. 198655 Accept/Reject? Just a suggestion, of course. Regards Harri From unknown Thu Aug 14 21:56:17 2025 Received: (at fakecontrol) by fakecontrolmessage; To: internal_control@debbugs.gnu.org From: Debbugs Internal Request Subject: Internal Control Message-Id: bug archived. Date: Fri, 26 Jun 2020 11:24:06 +0000 User-Agent: Fakemail v42.6.9 # This is a fake control message. # # The action: # bug archived. thanks # This fakemail brought to you by your local debbugs # administrator