Date: Sat, 19 May 2012 07:49:47 -0600 (MDT) From: Warren Block <wblock@wonkity.com> To: Matthias Apitz <guru@unixarea.de> Cc: User Wojtek <wojtek@wojtek.tensor.gdynia.pl>, Dimitry Andric <dim@freebsd.org>, freebsd-hackers@freebsd.org Subject: Re: proper newfs options for SSD disk Message-ID: <alpine.BSF.2.00.1205190747500.30455@wonkity.com> In-Reply-To: <20120519085444.GA2966@tinyCurrent> References: <alpine.BSF.2.00.1205182209010.9350@wojtek.tensor.gdynia.pl> <4FB6B713.7080807@FreeBSD.org> <alpine.BSF.2.00.1205191039090.12010@wojtek.tensor.gdynia.pl> <20120519085444.GA2966@tinyCurrent>
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This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---902635197-829386930-1337435387=:30455 Content-Type: TEXT/PLAIN; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8BIT On Sat, 19 May 2012, Matthias Apitz wrote: > El día Saturday, May 19, 2012 a las 10:40:32AM +0200, User Wojtek escribió: > >>> You may be able to find the exact erase block size in the technical >>> documentation of your specific SSD. But the manufacturers don't always >>> tell. :) >>> ... > > Hi, > > Some weeks ago in the context of Openmoko (my Linux based cellphone) > I came across to this very interesting article about file systems and > SSD; even if the article is in Linux context, it contains useful > information about how SSD behaves when updating blocks on SSD. > > https://lwn.net/Articles/428584/ That's an excellent article. It mentions a flashbench tool which can help determine data for a particular SSD: git://git.linaro.org/people/arnd/flashbench.git I haven't tried it yet. ---902635197-829386930-1337435387=:30455--
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