From owner-freebsd-questions@freebsd.org Thu Oct 15 16:16:49 2015 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id E4720A15F54 for ; Thu, 15 Oct 2015 16:16:49 +0000 (UTC) (envelope-from amvandemore@gmail.com) Received: from mail-qk0-x22c.google.com (mail-qk0-x22c.google.com [IPv6:2607:f8b0:400d:c09::22c]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id A32AE196E for ; Thu, 15 Oct 2015 16:16:49 +0000 (UTC) (envelope-from amvandemore@gmail.com) Received: by qkap81 with SMTP id p81so41694334qka.2 for ; Thu, 15 Oct 2015 09:16:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=NYzF5r1+qCWV2C4+FoKhh3XNG7JYFVv40qhrXE1LUjo=; b=gvGdKuJoSl+y4K7j/Rd1zncs7Ga7bE2a6NUl6h3cErCeEjCoFRWAqIam3EfiGQ+DOy vPvGUVs8EsPv1sTvE2cnfcKsyEzgnr7daaZeNi5hkfS4wRdcFIKrtXcH24rhDZ+3mU3q /NkjKM71FprQ8rB1IFv3C+o2CES2fzKtLlFucfgFpOsHfCJAggEZuaKhuf3PIKPGDCGj Y51bLYeW4MZ903Ki0AshdrFb9dfSMTaE5JFBT+iH5eF/kgQfvfdOiph4V5UdnjffYpX3 1W4aj/ypElS6Yrm0aNUjgukMV9AeGjpOFMtbJG1jt/uZPZjqjD9hCScaurzzsRXdxDQk ORzw== MIME-Version: 1.0 X-Received: by 10.194.143.43 with SMTP id sb11mr12900736wjb.120.1444925808633; Thu, 15 Oct 2015 09:16:48 -0700 (PDT) Received: by 10.194.16.231 with HTTP; Thu, 15 Oct 2015 09:16:48 -0700 (PDT) In-Reply-To: <561FAEE7.2030505@hiwaay.net> References: <561F9FAC.9080308@hiwaay.net> <561FAEE7.2030505@hiwaay.net> Date: Thu, 15 Oct 2015 11:16:48 -0500 Message-ID: Subject: Re: Follow-up install questions From: Adam Vande More To: "William A. Mahaffey III" Cc: "FreeBSD Questions !!!!" Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 15 Oct 2015 16:16:50 -0000 On Thu, Oct 15, 2015 at 8:47 AM, William A. Mahaffey III wrote: > > I am not streaming 1080p streams on this box, that would be on the smaller > MythTV box. I will be using the larger box to compile in-house analysis > code (predominantly CFD, some FEA) & run validation cases, some of which > can/will produce prodigious amounts of output, ASCII & binary. Larger data > sets can take plural min. to write on linux mdadm RAID0's, current 1st-hand > experience w/ the incumbent 1-box compile-farm-&-validation box, Intel > based. I/O performance *IS* an issue for me, sorry for the bother. I > configure *ALL* of my boxen to possibly serve as validation & calculation > boxen, maxed-out RAM & generous swap space. Again, sorry for that bother. I > am planning to follow the wiki page ( > https://wiki.freebsd.org/RootOnZFS/GPTZFSBoot/9.0-RELEASE) closely, > obviously w/ more HDD's, in my setup, with just the one (1) question about > 'unmirrored zpools'. That page implies that *any* zpool configuration will > work, I am just trying to verify that & save myself as many bumps in the > road & wasted time as possible. TIA for any further help & experience or > sage advice. Have a good one. > You're spending weeks of time reinventing wheels so chasing a wee bit of disk io speed doesn't compute. Also using the 9 branch flies in the face of your stated desires. A single SATA is going to do about 1GB in 10 seconds which is an order of magnitude more what a 1Gb NIC would allow to transfer. > & WTF about white space ? https://www.gonzaga.edu/academics/Colleges-and-schools/School-of-Business-administration/undergraduate/SBAWR/IDR.asp -- Adam