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To: mj@feral.com
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Mon, 19 Dec 2011 14:25:55 PST."
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Date: Mon, 19 Dec 2011 23:07:56 +0000
Message-ID: <92954.1324336076@critter.freebsd.dk>
Cc: 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 <4EEFB9F3.80603@feral.com>, Matthew Jacob writes:
>On 12/19/2011 2:22 PM, Poul-Henning Kamp wrote:
>> 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.
>
>No, sorry, that's not really true.

Pray tell!

There will always be charge leakage, but last I talked to
silicon-pushers, that was (almost) entirely independent of read-access
and correlated strongly with temperature*duration.

Obviously, if your flash controller lies to you and do needless writes
anyway, we are not talking read-only.

Those are the only two effects I know of ?


-- 
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.