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 TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by finch.gentoo.org (Postfix) with ESMTPS id BAA2D13933E for ; Thu, 1 Jul 2021 17:35:33 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 40B4EE0896; Thu, 1 Jul 2021 17:35:28 +0000 (UTC) Received: from mout.gmx.net (mout.gmx.net [212.227.15.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id 7DFA1E0884 for ; Thu, 1 Jul 2021 17:35:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1625160915; bh=pjjqBWIdYGLcCbatxzNqiBsY+j6a6VjvFKKi+yzi/LM=; h=X-UI-Sender-Class:Date:From:To:Subject:References:In-Reply-To; b=ikbxLiLVLYSIOwP9zLpEpGW3zOux9Vljs5pLKqU/lAUmAtS7W3CIxQGTh3ATmRpBP /09BEQdGfe9Q018kPKHH/vKfeKEJWvBbuL3RFR9tCB222bA2RqL5Bvx3coEvDQxFB2 uSQKBjQPR3WgqGSpTHMUvLSfOTfuTfjo5nOtjqvM= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from kern ([92.117.33.81]) by mail.gmx.net (mrgmx004 [212.227.17.190]) with ESMTPSA (Nemesis) id 1MrhQ6-1lSuu73CRI-00nlW6 for ; Thu, 01 Jul 2021 19:35:15 +0200 Date: Thu, 1 Jul 2021 19:35:14 +0200 From: Frank Steinmetzger To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] [OT] Using an odd number of drives in ZFS RaidZ Message-ID: Mail-Followup-To: gentoo-user@lists.gentoo.org References: <7622209.dfAi7KttbR@robert-notebook> <5d972c64-3803-9e14-9302-3cb8ca4eb09e@youngman.org.uk> 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-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="w0m3RfH9SGak3vIs" Content-Disposition: inline In-Reply-To: <5d972c64-3803-9e14-9302-3cb8ca4eb09e@youngman.org.uk> User-Agent: Mutt 2.1; VIM - Vi IMproved 8.2 X-Provags-ID: V03:K1:hCJTm3PzruBlwmnX9njM0Zz+B1rTMAmxSc97MvnrIqJrvPTKxp5 CvumQ1hEVLYmdrVDs8qXHLZOAHYE+KxZQ3gVT9mbgUqji4iVTJNFbNuEk5LxHeL4rGxqwyj R6Z6//NykporcGH/xdtDLi0adYVXXYUT2CfH8UeV/7H0I7YAvuEVXa3QySrZSx5P5siRzHF EA2hpYS38vc6nRukILSfw== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:lSuHCWG2cbU=:xvdz8VpNePv8d78+RzqKve aukT0oloP7VHS99VQB1hUBSzH2H/mS4CsZ73LnbvkO1TImJsHp11partiid8e/ldzLs5Lfq64 hJzIK0EQr/i+myP+CaplUukpByCIu5mQxzl8qJzlGDUCAxXGPR3c+/0SP2ohxeikZAxB+Lna0 rguDDp7qa+o+uGT66InsZUIFoa+PEeaJ7kBMELKeWLrlFq7P7Q6QSJ+8LtF1wGiQMBLPcuZui jVJ+A+k634YO7wydSlV/MF9eGJdaLifc0O3lgIKe7InbAZ20+otKjoTlxM5gjUO5ujZV/gyDg V+rIn40mFhNv6Iy5u7JU88ygkJb/3HJB9+QWbZzoqIbxvKvQH7YhmZKcrzBowCggRbkOlbwxb i43JarppLA0z+mXHYGybZlNl07pJUQ4Hq0I7KLbIS8kmbFnXXePK9G+WijRIOMCeeU6K0eRq0 NFFmKGjjmKDK2bLXxqB/5PW/g1V3mjFTq+baKkymJmhT9JDjnZZOTBe6hkuOC8CN4g1fy2nRX BGCKimz1rtgJC5tSUMkNlOvUOhQMAknaFTdQupGP3JV1l0UwnZlaJJanvjoKDt3RmZkqpdlFc 7EzoKOV0aRsAnvIc6Q1OXZKQerhI3/Dpcs1NNLA9s7KefFfQ1VJqH0qaDN0pVUI/4wMpqkzgE BE3/ceO/I9Gqcai8c3E3Me+1lG0KKj8nLE5zy3ITOnb0G3p7dLV/v4bcd83vYCqDTapA4bISd oDQlxQtbL6PWDMXR4v1tigprfF889qMQ/J2YyJowouC1bv+S90LnbXu6ReukNK9IBeAfnEYqi Lg9nMPPwU5pfdwSUcs6Qtw3ZKs4xGucJr9QJpGh9DYoOq37oSbTiFH+kcWRihOQvJIFtutHQr YVhBCU+5ekDviCTJvEHt5gW5ugpkl9lh0o01OMoj8nUr+VispezjrOeXiG7Yk4ILyjbrtiPZ3 GR2nMj7aTkjf7fkG+kL/u0t3Z4f/fAfcbLS5lIP3+Vpwmz9ImpS2zTaM/3KoKhIXClzIv6zpz OMOBqUql6+XNwlJw4EEWeE+x2ToeslPXYAZFtMP8pVIpX/kiU6WZhKVNxuaIloQq3iBtAgHmp Yt3L6g/b9LfSGWqG8fi54XHqqcK/QPOaIOv X-Archives-Salt: 75d95e61-bc58-4158-993e-34d0bf195251 X-Archives-Hash: 56a44e230f14b34ccea86aae0ed31f32 --w0m3RfH9SGak3vIs Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Am Thu, Jul 01, 2021 at 04:01:25PM +0100 schrieb antlists: > On 01/07/2021 14:47, Robert David wrote: > > Hi Frank, > >=20 >=20 > >=20 > > In any of my data arrays I have long time migrated off the RAIDZ to the > > MIRROR or RAID10. You will find finally that the RAIDZ is slow and not > > very flexible. Flexibility indeed. This bites me in the butt now. But performance is sufficient for me, because everything can saturate gigabit ethernet and there are no VMs involved. A scrub currently takes 10=C2=BD hours. Considering each drive is filled wi= th 6 TB * 80 % =3D 4.8 TB, that=E2=80=99s an average of 130 MB/s/device which = seems not so bad for 5400 rpm drives. When I installed drives #3 and 4, I thought long and hard about whether to use Raid-10 or Z2. The increased resilience won the argument (any 2 drives over 2 particular drives). > > If you really need the additional space, consider adding second jbod > > with another disks. >=20 > That'd be my approach - migrate a load of stuff off onto another disk > elsewhere, but that's not what the OP wants to do. Yeah=E2=80=A6 I know that for some people, carrying around TBs of movies an= d TV series is overkill, but I like having them, and I like having them all in this neat little box: https://www.inter-tech.de/products/ipc/storage-cases/sc-4100 :) --=20 Gr=C3=BC=C3=9Fe | Greetings | Qapla=E2=80=99 Please do not share anything from, with or about me on any social network. =E2=80=9CIf I could explain it to the average person, I wouldn't have been = worth the Nobel Prize.=E2=80=9D =E2=80=93 Richard Feynman --w0m3RfH9SGak3vIs Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEVbE9o2D2lE5fhoVsizG+tUDUMMoFAmDd/NIACgkQizG+tUDU MMqwYA/9H5T4qA/Saf5uSWvvpNQxwS7wFdS3XjJH3vrKLCt2FymFB0dEfyKLB6K/ akO+xkVFiUkJXIsOyNABqPiJcuedmrGhkcFf8h5Oz9LlLIvLArWfRPgzHRlJ9+3V lmoG/vy81tX6N5Q+Dvje9w/VoZqiuIJz+2AqwN5J1NuvCQuEyWeZ4ZYE06hoS+6P MbnyMBkBvVuKrdMCU1k131QOcilFKN27L0VKiP4N09lIq3un7WTqO4wP4zdTVC5q KVA9pVbpAZcQY6zl7chVjZeA0ScVaMokvCT+H6RV7r063FwJyElN67tpCSyhZGvH 3AE7U07mUiQp1UqG6xKE3c6nzfUdO9xlPbbxOaShlIxKSfMqjcmeO7Sbub01li1L ZKYyZiSVmaQyX3j6WycwEzMpaz9xAGWSLNd1HiGmgF2/3CFlBvdTH6G3YkgIo/3H jorUyGNjMszXKyXwtgSb8lRMhdCGO6dSGpcPpKodgg+AOJTQLpfFzZKGUpyNUdxX NSZlY5UkwQy53FUTC23lvG2Opze2MscHyFJikXZAF51GtDPOrIyM41J83dueFZK3 13kFiCY5EGXLov0JcjsBlK4D59RlwkC/52E5Y7NnAiTXxzAIUJlb726ogHNu32xb Kp+T7CUBT9/ZoLqwKe3SDFF/FTNoRENyS+wukt0gYe58aTXp9BQ= =UE8c -----END PGP SIGNATURE----- --w0m3RfH9SGak3vIs--