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 7368CC00144 for ; Tue, 26 Jul 2022 21:40:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239069AbiGZVkY (ORCPT ); Tue, 26 Jul 2022 17:40:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45240 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229480AbiGZVkW (ORCPT ); Tue, 26 Jul 2022 17:40:22 -0400 Received: from rin.romanrm.net (rin.romanrm.net [IPv6:2001:bc8:2dd2:1000::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B1F4A624E for ; Tue, 26 Jul 2022 14:40:19 -0700 (PDT) Received: from nvm (nvm2.home.romanrm.net [IPv6:fd39::4a:3cff:fe57:d6b5]) by rin.romanrm.net (Postfix) with SMTP id DA56A5BD; Tue, 26 Jul 2022 21:40:16 +0000 (UTC) Date: Wed, 27 Jul 2022 02:40:15 +0500 From: Roman Mamedov To: Rich Rauenzahn Cc: Btrfs BTRFS Subject: Re: Combining two filesystems into single pool Message-ID: <20220727024015.3e87bb13@nvm> In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On Tue, 26 Jul 2022 13:32:22 -0700 Rich Rauenzahn wrote: > Could I, say, move /A to a subvolume A in itself and then permanently > "connect" /B as a subvolume B, putting all the disks into a single > pool? And then mount the two subvolumes as /A and /B? > > I'd swear I'd seen instructions on how to combine filesystem pools > before, but I can't find it again. Check out MergerFS. Although that adds a FUSE layer on top of both filesystems, which might be fine for a home media library, but maybe not for some other uses. -- With respect, Roman