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 25FEBC43334 for ; Mon, 20 Jun 2022 16:27:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241044AbiFTQ1l (ORCPT ); Mon, 20 Jun 2022 12:27:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48726 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237807AbiFTQ1k (ORCPT ); Mon, 20 Jun 2022 12:27:40 -0400 Received: from mail1.merlins.org (magic.merlins.org [209.81.13.136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6E6C720BDE for ; Mon, 20 Jun 2022 09:27:38 -0700 (PDT) Received: from [76.132.34.178] (port=59372 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 1o3JX7-000451-A9 by authid with srv_auth_plain; Mon, 20 Jun 2022 09:27:36 -0700 Received: from merlin by sauron.svh.merlins.org with local (Exim 4.92) (envelope-from ) id 1o3KFU-007uzY-B3; Mon, 20 Jun 2022 09:27:36 -0700 Date: Mon, 20 Jun 2022 09:27:36 -0700 From: Marc MERLIN To: Ghislain Adnet Cc: linux-btrfs@vger.kernel.org Subject: Re: Suggestions for building new 44TB Raid5 array Message-ID: <20220620162736.GB1878147@merlins.org> References: <20220611045120.GN22722@merlins.org> <5e1733e6-471e-e7cb-9588-3280e659bfc2@aqueos.com> <20220620150132.GM1664812@merlins.org> <8d54c3c5-a0b5-fdca-f31d-f9b5c3eea655@aqueos.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <8d54c3c5-a0b5-fdca-f31d-f9b5c3eea655@aqueos.com> X-Sysadmin: BOFH X-URL: http://marc.merlins.org/ X-Broken-Reverse-DNS: no host name for IP address 76.132.34.178 X-SA-Exim-Connect-IP: 76.132.34.178 X-SA-Exim-Mail-From: marc@merlins.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On Mon, Jun 20, 2022 at 05:52:14PM +0200, Ghislain Adnet wrote: > well i completly understand i use btrfs for the same reason but > it seems on your side that this use case is a little far from the > features provided. > The more layer i use the more i fear a Pise tower syndrome :) I share that worry, but using ZFS simply isn't an option to me for the reasons explained. But indeed, I removed bcache as a layer. 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