From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by finch.gentoo.org (Postfix) with ESMTPS id 5F66515815E for ; Wed, 7 Feb 2024 11:04:40 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 9B2F3E2A19; Wed, 7 Feb 2024 11:04:35 +0000 (UTC) Received: from gw1.antarean.org (gw1.antarean.org [194.145.200.214]) by pigeon.gentoo.org (Postfix) with ESMTP id 01C37E2A0A for ; Wed, 7 Feb 2024 11:04:34 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by gw1.antarean.org (Postfix) with ESMTP id 4TVHLn3bz3zyW8 for ; Wed, 7 Feb 2024 11:04:33 +0000 (UTC) X-Virus-Scanned: amavisd-new at antarean.org Received: from gw1.antarean.org ([127.0.0.1]) by localhost (gw1.antarean.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id G8goIT6EW41E for ; Wed, 7 Feb 2024 11:04:32 +0000 (UTC) Received: from mailstore1.adm.antarean.org (localhost [127.0.0.1]) by gw1.antarean.org (Postfix) with ESMTP id 4TVHLm6kPJzyP4 for ; Wed, 7 Feb 2024 11:04:32 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mailstore1.adm.antarean.org (Postfix) with ESMTP id 4TVHLm4xvKz1H for ; Wed, 7 Feb 2024 11:04:32 +0000 (UTC) X-Virus-Scanned: amavisd-new at antarean.org Received: from mailstore1.adm.antarean.org ([127.0.0.1]) by localhost (mailstore1.adm.antarean.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id i0ATQ97JrJGI for ; Wed, 7 Feb 2024 11:04:32 +0000 (UTC) Received: from iris.localnet (iris.adm.antarean.org [10.55.16.47]) by mailstore1.adm.antarean.org (Postfix) with ESMTPA id 4TVHLm2DJfz17 for ; Wed, 7 Feb 2024 11:04:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=antarean.org; s=default; t=1707303872; bh=lJR7Ktvt+S93TrCvf4aHsOtS9KP9RawR9VjCOdgqaC8=; h=From:To:Subject:Date:In-Reply-To:References; b=ODQpdJZnJKKuymCedhQDlHVToBJksTLHhOPjy4gUrqI3SvhfEpxbvQJkzUbzGzW5M c+k8ux2M8EGVRFlnafSBCOFzj/dWgs3PoU238jum97MZQRvOLWkhcwWVjnoe2KqhwV dSGkE3lBkco5dsU6ZZ9jSkc5jPyr89E1U6Y3fuUI= From: "J. Roeleveld" To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Re: Suggestions for backup scheme? Date: Wed, 07 Feb 2024 12:04:32 +0100 Message-ID: <2731442.mvXUDI8C0e@iris> In-Reply-To: References: <4553703.LvFx2qVVIh@iris> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Archives-Salt: 2485dc72-7b6b-48b4-8b77-df63b8d1790b X-Archives-Hash: 0f4bcc124678cfcf4ec1eee8a8ca3970 On Tuesday, February 6, 2024 6:29:09 PM CET Grant Edwards wrote: > On 2024-02-06, J. Roeleveld wrote: > > If you want to use snapshots, the filesystem will need to support it. > > (either LVM or ZFS). If you only want to create snapshots on the > > backupserver, I actually don't see much benefit over using rsync. > > Upthread I've been told that ZFS snapshots > > 1. Require far less disk space than rsync's snapshots. > 2. Are far faster. > 3. Are atomic. True, but the speed is reduced by relying on rsync to copy data from your PC to the backupserver. > > They are normally not visible though, you need to access them specifically > > using "/filesystem/path/.zfs/snapshot" > > Great, that's exactly what I would hope for. I'm reading up on ZFS, > and from what I've gleaned so far, it seems lake ZFS source and ZFS > backup certainly would be ideal. > > It's almost like the ZFS filesystem designers had thought about "how > to backup" from the start. Something that all of the old-school > filesystem designers clearly hadn't. :) I think it's also mainly there to quickly keep a backup server on standby for a quick switch over. -- Joost