From owner-freebsd-questions@freebsd.org Wed Oct 28 06:37:12 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 1A42443DE53 for ; Wed, 28 Oct 2020 06:37:12 +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 4CLf4l1xmbz3SZJ for ; Wed, 28 Oct 2020 06:37:10 +0000 (UTC) (envelope-from ralf-mardorf@riseup.net) Received: from bell.riseup.net (bell-pn.riseup.net [10.0.1.178]) (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 4CLf4X5rsbzFtNG for ; Tue, 27 Oct 2020 23:37:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=riseup.net; s=squak; t=1603867020; bh=0Yu3dMu12YRR4SziubPk5UGMN+1onx9EGV/9e2OGyl4=; h=Date:From:To:Subject:In-Reply-To:References:From; b=N4WY4sLphCFbvbx2mweo9WTbCl1iLUjmYpkmvnlStOYY8EC6GnR+qDSMn24ZQtdAu u1YD4i4u3pqYPgNf3+Vd7tIPDQ/SNTOnF5NwWAHnIr88yZM/i3X2rOSj1+q7ABNqzX 461wOp8Ud6Ptblqk+MvUHemAyVu9m8VurbUk6JoE= X-Riseup-User-ID: 215C38E5643303C16501FF56C6C1EBF11AA704041BFBC1A8C0BAD2CFC152881C Received: from [127.0.0.1] (localhost [127.0.0.1]) by bell.riseup.net (Postfix) with ESMTPSA id 4CLf4X1BwczJmgH for ; Tue, 27 Oct 2020 23:36:55 -0700 (PDT) Date: Wed, 28 Oct 2020 07:36:44 +0100 From: Ralf Mardorf To: freebsd-questions@freebsd.org Subject: Re: What is the "better / best " method to multi-boot different OSes natively WITHOUT VirtualBox(es) ? Message-ID: <20201028073644.52fed6c6@archlinux> In-Reply-To: References: <20201024123148.4929fb9e.freebsd@edvax.de> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4CLf4l1xmbz3SZJ X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=riseup.net header.s=squak header.b=N4WY4sLp; 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 [-2.97 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; RWL_MAILSPIKE_GOOD(0.00)[198.252.153.129:from]; R_SPF_ALLOW(-0.20)[+mx]; TO_DN_NONE(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; DKIM_TRACE(0.00)[riseup.net:+]; DMARC_POLICY_ALLOW(-0.50)[riseup.net,none]; NEURAL_HAM_SHORT(-0.35)[-0.351]; 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_IN_DNSWL_LOW(-0.10)[198.252.153.129:from]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.98)[-0.978]; R_DKIM_ALLOW(-0.20)[riseup.net:s=squak]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.05)[-1.046]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-questions@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; DWL_DNSWL_LOW(-1.00)[riseup.net:dkim]; MID_RHS_NOT_FQDN(0.50)[]; RCVD_TLS_ALL(0.00)[]; MAILMAN_DEST(0.00)[freebsd-questions] 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, 28 Oct 2020 06:37:12 -0000 On Tue, 27 Oct 2020 23:57:05 +0000 (UTC), doug@safeport.com wrote: >I would be interested in opinions on the best hard disks. ^^^^^^^^ a good chosen word, since not many undisputed facts do exist In my experiences a batch of series x of vendor y could be very good or bad and for the next batch it could be vice versa or a good series is discontinued. Interesting are statistics from Google. I don't have a link at hand, but I remember that they successfully used consumer instead of enterprise disks and IIRC what Google experienced with countless disks, was similar to my experiences with just a few disks. I read an article years ago. IOW related to the lifespan it seems to be a lotto draw. Related to performance simple technical facts and clear measurements do exist. It was already hinted by this thread. Shingled magnetic recording makes drives inexpensive, because it does increase storage capacity. Due to the procedure it is required to rewrite tracks, which results in performance lags. Different SMR drives suffer from different performance lags. However, more expensive drives, not using SMR technology tend to be faster when writing data. In the end you need to read a lot of papers and decide on your own what is "the best" for you or in your opinion.