From owner-freebsd-questions@freebsd.org Sun Jul 14 23:39:42 2019 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 E3E35AB091 for ; Sun, 14 Jul 2019 23:39:42 +0000 (UTC) (envelope-from lee@adminart.net) Received: from mo6-p00-ob.smtp.rzone.de (mo6-p00-ob.smtp.rzone.de [IPv6:2a01:238:20a:202:5300::10]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "*.smtp.rzone.de", Issuer "TeleSec ServerPass Class 2 CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 76E5B6C15A for ; Sun, 14 Jul 2019 23:39:41 +0000 (UTC) (envelope-from lee@adminart.net) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1563147579; s=strato-dkim-0002; d=adminart.net; h=References:Message-ID:Date:In-Reply-To:Subject:Cc:To:From: X-RZG-CLASS-ID:X-RZG-AUTH:From:Subject:Sender; bh=CKHDzUxTuPOjI5uNyvbu1CXzGn76cYdSO8ATTdZii6g=; b=WOlWoexUkhLjL7a/UoZTdnDND+2kRxzn+A/oNoNsqnsF+w3zS0C+Z8KY2rLxBGU7zD WGZZfghTsRDTeoHc64JydPd057EnY5Qrc3cRUJ8n19PMfgdeAKMs9z2cLIZYE+WyNBPz Sw0PxgWVvg0oI4PtJVPiQsUXKIHqVzM/6JiUViA/5aZCB+EUkeQ76WNnCEmyTRjMP0+V aPimHPRHFUJs5T+D3k7X1wrzp9qkad4zQDAOowm5RQkOZORTEDr60j/4N8PLJiVsQRSr +NJevebS4MuGlTvq0lmvrurWPvTYCPXvfHjFPBOBpWK9ruWdK3ewyH3YKghwnoBtM5XS Mbqw== X-RZG-AUTH: ":O2kGeEG7b/pS1FS4THaxjVF9w0vVgfQ9xGcjwO5WMRo5c+h5ceMqQWZ3yrBp+ARdaXvxIDf7nlw=" X-RZG-CLASS-ID: mo00 Received: from himinbjorg.adminart.net by smtp.strato.de (RZmta 44.24 DYNA|AUTH) with ESMTPSA id e0059dv6ENdcRKo (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (curve secp521r1 with 521 ECDH bits, eq. 15360 bits RSA)) (Client did not present a certificate); Mon, 15 Jul 2019 01:39:38 +0200 (CEST) Received: from toy.adminart.net ([192.168.3.55]) by himinbjorg.adminart.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.92) (envelope-from ) id 1hmo5h-00014L-DK; Mon, 15 Jul 2019 01:39:37 +0200 Received: from lee by toy.adminart.net with local (Exim 4.92) (envelope-from ) id 1hmo5g-00010P-TJ; Mon, 15 Jul 2019 01:39:37 +0200 From: hw To: Ruben Cc: "Kevin P. Neal" , freebsd-questions@freebsd.org, "Clay Daniels Jr." Subject: Re: dead slow update servers In-Reply-To: <0ed2aef9-0cb8-b7ab-711e-34f139c60285@osfux.nl> (Ruben's message of "Sun, 14 Jul 2019 10:37:51 +0200") Date: Mon, 15 Jul 2019 00:44:52 +0200 Message-ID: <87zhlgqlqz.fsf@toy.adminart.net> References: <87sgrbi3qg.fsf@toy.adminart.net> <20190712171910.GA25091@neutralgood.org> <871ryuj3ex.fsf@toy.adminart.net> <874l3qfvqw.fsf@toy.adminart.net> <20190714011303.GA25317@neutralgood.org> <87v9w58apd.fsf@toy.adminart.net> <0ed2aef9-0cb8-b7ab-711e-34f139c60285@osfux.nl> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Rspamd-Queue-Id: 76E5B6C15A X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=adminart.net header.s=strato-dkim-0002 header.b=WOlWoexU X-Spamd-Result: default: False [-3.67 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_DKIM_ALLOW(-0.20)[adminart.net:s=strato-dkim-0002]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[4]; TO_DN_SOME(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; TAGGED_RCPT(0.00)[]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[adminart.net]; RCVD_COUNT_THREE(0.00)[4]; TO_MATCH_ENVRCPT_SOME(0.00)[]; MX_GOOD(-0.01)[cached: smtpin.rzone.de]; DKIM_TRACE(0.00)[adminart.net:+]; NEURAL_HAM_SHORT(-0.82)[-0.823,0]; R_SPF_NA(0.00)[]; FORGED_SENDER(0.30)[hw@adminart.net,lee@adminart.net]; RCVD_IN_DNSWL_LOW(-0.10)[0.1.0.0.0.0.0.0.0.0.0.0.0.0.3.5.2.0.2.0.a.0.2.0.8.3.2.0.1.0.a.2.list.dnswl.org : 127.0.5.1]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:6724, ipnet:2a01:238::/32, country:DE]; FROM_NEQ_ENVFROM(0.00)[hw@adminart.net,lee@adminart.net]; IP_SCORE(-0.74)[ipnet: 2a01:238::/32(-3.27), asn: 6724(-0.41), country: DE(-0.01)] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 14 Jul 2019 23:39:43 -0000 Ruben writes: > On 7/14/19 7:10 AM, hw wrote: >> "Kevin P. Neal" writes: > > stuff snipped > >> >> What do you do when you put FreeBSD on a server that has a hardware RAID >> controller which doesn't do JBOD? Use ZFS on the RAID? > > > I've created rock-solid setups over the years where you just create 6 > raid0 arrays and have zfs use those 6 raid0 arrays for a raidz2 zpool. > > I've created a bunch of buggy zpools that way as well, kind of depends > on the raid controller i guess. > > You can get second hand raid controllers that have been flashed with > JBOD firmware from > > https://www.ebay.nl/usr/theartofserver > > Those raidcontrollers are great for running FreeBSD and the guy posts > lots of interesting videos on youtube and is very responsive in > support requests as well. What is the point of doing this? When you have hardware RAID, just use it rather than ZFS. What about compatibility? I had to return Dell controllers because they would not run in any of the machines I put them in, and who says any of the controllers this guy sells would have no issues in, for example, a DL380? Do you change out the backplane as well, or modifiy it, in case you have somehow managed to figure out that it is giving you trouble, and/or do you adjust the firmware of the disks in case the HP firmware doesn't like the Dell or the LSI controller? Do you send controllers back and forth until you find one that seems to work, perhaps paying international shipping? > I'd always use JBOD for ZFS. That's what it is for. > If it doesn't, try to reflash or just ditch the raid-controller if it > doesn't support it (and get a "proper" one). This is ridiculous.