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Date:      Tue, 22 Mar 2016 15:22:45 +0800
From:      Erich Dollansky <erichsfreebsdlist@alogt.com>
To:        Russell Haley <russ.haley@gmail.com>
Cc:        Warner Losh <imp@bsdimp.com>, freebsd-arm <freebsd-arm@freebsd.org>
Subject:   Re: Effect of partitioning on wear-leveling
Message-ID:  <20160322152245.623de990@X220.alogt.com>
In-Reply-To: <CABx9NuSfUfQudmUESX-MbA7-oL3R0s1LvvPeg-_gWVjfTAPtaw@mail.gmail.com>
References:  <20160321175952.GA83908@www.zefox.net> <1458586884.68920.96.camel@freebsd.org> <20160321221153.GB83908@www.zefox.net> <1458600070.68920.107.camel@freebsd.org> <1973487B-0AA7-468D-A9CC-319FBE2122F0@netgate.com> <CANCZdfrCWXAswe02Qd3tTiDL8O_4TGEWbhFqgft4Q9aKj7ixvg@mail.gmail.com> <20160322033417.GD83908@www.zefox.net> <271EF73A-077C-44A5-8B58-721405800B9F@bsdimp.com> <CABx9NuSfUfQudmUESX-MbA7-oL3R0s1LvvPeg-_gWVjfTAPtaw@mail.gmail.com>

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Hi,

On Mon, 21 Mar 2016 21:39:37 -0700
Russell Haley <russ.haley@gmail.com> wrote:

> How long can nand go without power before it starts to lose data
> integrity?

as said, the manufacturers say 10 years. But those 10 years start with
the writing of the data. As we do not know when the internal controller
does the writing when moving data in the background, we only can assume
a minimal 10 years since the purchase of the device.

Erich



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