From mboxrd@z Thu Jan  1 00:00:00 1970
From: erik quanstrom <quanstro@quanstro.net>
Date: Thu,  5 Jan 2012 13:01:52 -0500
To: 9fans@9fans.net
Message-ID: <ea7157b338d53727cc50bd6fee724a5f@chula.quanstro.net>
In-Reply-To: <20120105175106.6FAD9B852@mail.bitblocks.com>
References: <20120105124852.GA940@polynum.com>
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	<20120105151518.GB435@polynum.com>
	<CADSkJJXMBGnjtXbL5w+WMuxVbnW_+D6hQXYMN04wzYu+yXaCzA@mail.gmail.com>
	<20120105163907.GA761@polynum.com>
	<20120105175106.6FAD9B852@mail.bitblocks.com>
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Subject: Re: [9fans] venti and "contrib": RFC
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> if you read 1TB, you have 8% chance of a silent bad read
> sector.  More important to worry about that in today's world
> than optimizing disk space use.

do you have a citation for this?  i know if you work out the
numbers from the BER, this is about what you get, but in
practice i do not see this 8%.  we do pattern writes all the
time, and i can't recall the last time i saw a "silent" read error.

- erik