From nobody Thu Feb 22 21:16:01 2024 X-Original-To: freebsd-questions@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4TgmCb6ywQz5BQtf for ; Thu, 22 Feb 2024 21:16:11 +0000 (UTC) (envelope-from dpchrist@holgerdanske.com) Received: from holgerdanske.com (holgerdanske.com [IPv6:2001:470:0:19b::b869:801b]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "holgerdanske.com", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4TgmCZ64LWz40JY for ; Thu, 22 Feb 2024 21:16:10 +0000 (UTC) (envelope-from dpchrist@holgerdanske.com) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=holgerdanske.com header.s=nov-20210719-112354 header.b=L2279FoS; spf=pass (mx1.freebsd.org: domain of dpchrist@holgerdanske.com designates 2001:470:0:19b::b869:801b as permitted sender) smtp.mailfrom=dpchrist@holgerdanske.com; dmarc=pass (policy=none) header.from=holgerdanske.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=holgerdanske.com; s=nov-20210719-112354; t=1708636561; bh=Ha0DsAnlzoAkgxnPSc2bWwhYom9OAFObpyvvju1d6dM=; h=Received:Message-ID:Date:MIME-Version:User-Agent:From:Subject:To: References:Content-Language:In-Reply-To:Content-Type: Content-Transfer-Encoding; b=L2279FoS+pY+DGu4asjVe4TNzK/Y076hQdqGJ0PRIcQ6EO6ydd3TEiXQi3mYcrWp+ yifzbL1eWfRMLwPGIhG7OGoT1QDz3MB+lf0IPPfjucFLHzybW/jMjNa4K4NpR0QjxP jAwXIS1nT5yjH3WlE8oTxVEeuu31o1YwoTpw5lrxV/FkAA+qJIl19ftslgPhnEZgL6 N7Owe6RtLdJCCc0NHDgXMkEt90aEfAiMQBt4tpE/lOVJfmPS2xA3pDRiebrkJnRcFq rPvSg/vuvER4/lfX7EHladbpu7Gvp69rQPU4SiGcGThwWWb0fJTb+A+QSqhkcmFYid Gc8xT1XY1oFzMI5Yi/U2DkpwNUcYsebn86VEqaj+ZFXbFGcTqyLSgWXmi84Oupa3NI uzbE99ZnG7tuW7jY7WEoiAUkfNSUawlmgpLzM5/ZxEb0h47ifWZ0GCousBUAcGs9cW gGZgnIN2BJGt2ktlB7ouz/brTo09gorjFYjy2xAJ7GemIYSInKkvDyFx9w9EleC449 HOHf6smqZJt7uQkPQqeKUjTux9a3yCK/194on6LLFy/q0hWhu9Wx5i9aGGrY3fAg+0 cNoDArS+S4s781Y8AlGbPqrb5nbyTlQbO1qPOyONOjclhRiZoBdCRB7ApjUFAAQafG VPeDeWbaeAD2SzuhZct2bH0w= Received: from 99.100.19.101 (99-100-19-101.lightspeed.frokca.sbcglobal.net [99.100.19.101]) by holgerdanske.com with ESMTPSA (TLS_AES_128_GCM_SHA256:TLSv1.3:Kx=any:Au=any:Enc=AESGCM(128):Mac=AEAD) (SMTP-AUTH username dpchrist@holgerdanske.com, mechanism PLAIN) for ; Thu, 22 Feb 2024 13:16:01 -0800 Message-ID: <0248f46d-c2ba-4774-9419-369541ddd2c0@holgerdanske.com> Date: Thu, 22 Feb 2024 13:16:01 -0800 List-Id: User questions List-Archive: https://lists.freebsd.org/archives/freebsd-questions List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-questions@freebsd.org X-BeenThere: freebsd-questions@freebsd.org MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: David Christensen Subject: Re: FreeBSD, Illumos ZFS, and OpenZFS To: freebsd-questions@freebsd.org References: <4ff00fb1-6f7b-476e-8eb5-7d5db8262a23@holgerdanske.com> <0e86a3fe-a4f5-470e-aec2-f739802277fa@heuristicsystems.com.au> Content-Language: en-US In-Reply-To: <0e86a3fe-a4f5-470e-aec2-f739802277fa@heuristicsystems.com.au> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4TgmCZ64LWz40JY X-Spamd-Bar: --- X-Spamd-Result: default: False [-3.89 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-1.000]; DMARC_POLICY_ALLOW(-0.50)[holgerdanske.com,none]; R_SPF_ALLOW(-0.20)[+a:november.he.net]; R_DKIM_ALLOW(-0.20)[holgerdanske.com:s=nov-20210719-112354]; ONCE_RECEIVED(0.10)[]; MIME_GOOD(-0.10)[text/plain]; XM_UA_NO_VERSION(0.01)[]; RCPT_COUNT_ONE(0.00)[1]; RCVD_VIA_SMTP_AUTH(0.00)[]; ASN(0.00)[asn:6939, ipnet:2001:470::/32, country:US]; MIME_TRACE(0.00)[0:+]; RCVD_COUNT_ONE(0.00)[1]; RCVD_TLS_ALL(0.00)[]; MLMMJ_DEST(0.00)[freebsd-questions@freebsd.org]; ARC_NA(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; TO_DN_NONE(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-questions@freebsd.org]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DKIM_TRACE(0.00)[holgerdanske.com:+] On 2/18/24 22:39, Dewayne Geraghty wrote: > PS ufs2 is well supported and both gmirror and geli are reliable > friends. ;) Thank you for the reply. :-) Today, I was preparing a disk and (re-)discovered that geli(8) can do data integrity verification: init Initialize providers which need to be encrypted. ... -a aalgo Enable data integrity verification (authentication) using the given algorithm. So (?): * geli(8) for data integrity verification. * gmirror(8) for data integrity repair via data redundancy. * gstripe(8) for capacity (RAID10). newfs(8): * Defaults to UFS2. Are there any good reasons for choosing UFS1 today? * I see three related options -- journaling (-J), soft updates (-U), and soft updates journaling (-j). * Is -j alone equal to -J and -U together? * It appears -j is incompatible with mount(8) live snapshots (?). * Is -J compatible with mount(8) live snapshots? * Is -U compatible with mount(8) live snapshots? * Other feature interactions I should consider? I own a stack of Lucas books, notably the following: https://mwl.io/nonfiction/os#fmse Are there other resources I should read? Comments or suggestions? David