From owner-freebsd-current@FreeBSD.ORG  Mon Dec 19 22:22:23 2011
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To: Alexander Best <arundel@freebsd.org>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Mon, 19 Dec 2011 22:16:17 GMT."
	<20111219221617.GA70383@freebsd.org>
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Date: Mon, 19 Dec 2011 22:22:22 +0000
Message-ID: <42198.1324333342@critter.freebsd.dk>
Cc: freebsd-fs@freebsd.org, freebsd-current@freebsd.org
Subject: Re: can a wrong alignment cause a decrease in a hdd's life
	expectancy?
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In message <20111219221617.GA70383@freebsd.org>, Alexander Best writes:

>ps: the hdd only gets mounted read-only!

There is no known wear-effects in flash storage as long as you
only read.

You may need to do refresh-writes every 5-10 years to avoid
tunnel-leakage bit errors, but most flash controllers use semi-long
ECC syndromes and will do so on first bit that gives an read error.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.