From owner-freebsd-questions@freebsd.org Wed Jul 8 20:24:59 2020 Return-Path: Delivered-To: freebsd-questions@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 2084E36E602 for ; Wed, 8 Jul 2020 20:24:59 +0000 (UTC) (envelope-from ralf-mardorf@riseup.net) Received: from mx1.riseup.net (mx1.riseup.net [198.252.153.129]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.riseup.net", Issuer "Sectigo RSA Domain Validation Secure Server CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4B29lZ2KGJz3d5L for ; Wed, 8 Jul 2020 20:24:58 +0000 (UTC) (envelope-from ralf-mardorf@riseup.net) Received: from capuchin.riseup.net (capuchin-pn.riseup.net [10.0.1.176]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (Client CN "*.riseup.net", Issuer "Sectigo RSA Domain Validation Secure Server CA" (not verified)) by mx1.riseup.net (Postfix) with ESMTPS id 4B29lX3c5XzFc8b for ; Wed, 8 Jul 2020 13:24:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=riseup.net; s=squak; t=1594239896; bh=w+gXegN27Q/cUhejWAbznmmcVrMs9erUquwLqhyR5S0=; h=Date:From:To:Subject:In-Reply-To:References:From; b=loBeGEiw88tE2CwBwjQ0aMsD/LO4WWtPjNIsssBYhX1ddjp1rqOOrEGCtwlj4zGRR RoUfOKIxLEsPM/3RTUw3iU/qXWhFkLHWkz3IH3MgE6M26/DWmtn+ftoG0rYPTLsb1t PBqRvWk1erMCfT5pxm70penikOleSCOjwwmhEJQc= X-Riseup-User-ID: F4C188FCDC0AD01332E43C298218B6349C9B45158ECEE0F690356222D25E5E1F Received: from [127.0.0.1] (localhost [127.0.0.1]) by capuchin.riseup.net (Postfix) with ESMTPSA id 4B29lW5vSkz8v0v for ; Wed, 8 Jul 2020 13:24:55 -0700 (PDT) Date: Wed, 8 Jul 2020 22:24:53 +0200 From: Ralf Mardorf To: freebsd-questions@freebsd.org Subject: Re: Are there any real advantages of ext4 over ext2 ? Message-ID: <20200708222453.43ccdcda@archlinux> In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4B29lZ2KGJz3d5L X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=riseup.net header.s=squak header.b=loBeGEiw; dmarc=pass (policy=none) header.from=riseup.net; spf=pass (mx1.freebsd.org: domain of ralf-mardorf@riseup.net designates 198.252.153.129 as permitted sender) smtp.mailfrom=ralf-mardorf@riseup.net X-Spamd-Result: default: False [-3.27 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; R_DKIM_ALLOW(-0.20)[riseup.net:s=squak]; NEURAL_HAM_MEDIUM(-1.02)[-1.018]; FROM_HAS_DN(0.00)[]; RWL_MAILSPIKE_GOOD(0.00)[198.252.153.129:from]; TO_MATCH_ENVRCPT_ALL(0.00)[]; R_SPF_ALLOW(-0.20)[+mx]; MIME_GOOD(-0.10)[text/plain]; TO_DN_NONE(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-questions@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; DWL_DNSWL_LOW(-1.00)[riseup.net:dkim]; RCVD_COUNT_THREE(0.00)[3]; MID_RHS_NOT_FQDN(0.50)[]; DKIM_TRACE(0.00)[riseup.net:+]; DMARC_POLICY_ALLOW(-0.50)[riseup.net,none]; NEURAL_HAM_SHORT(-0.60)[-0.598]; NEURAL_HAM_LONG(-1.06)[-1.055]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; SUBJECT_ENDS_QUESTION(1.00)[]; ASN(0.00)[asn:16652, ipnet:198.252.153.0/24, country:US]; RCVD_TLS_ALL(0.00)[]; RCVD_IN_DNSWL_LOW(-0.10)[198.252.153.129:from] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 08 Jul 2020 20:24:59 -0000 "A journaling file system is a file system that keeps track of changes not yet committed to the file system's main part by recording the intentions of such changes in a data structure known as a "journal", which is usually a circular log. In the event of a system crash or power failure, such file systems can be brought back online more quickly with a lower likelihood of becoming corrupted." - https://en.wikipedia.org/wiki/Journaling_file_system ext2 isn't a journaling file system, while ext3 and ext4 are journaling file systems.