From: Thomas Gleixner <gleixner@autronix.de>
To: Lance Nakamura <LANCE_N@VERIFONE.COM>,
David Woodhouse <dwmw2@infradead.org>
Cc: linux-mtd@lists.infradead.org, jffs-dev@axis.com
Subject: Re: NAND flash and JFFS(2)
Date: Wed, 13 Feb 2002 21:19:47 +0100 [thread overview]
Message-ID: <0202132119470Z.00764@thomas> (raw)
In-Reply-To: <03F65384200AD111936B0060B067AC7B030912AA@HNL-NT-MAIL1.verifone.com>
On Wednesday, 13. February 2002 21:03, Lance Nakamura wrote:
> 2 things:
> 1) can the test be set to remove power more frequently,
> as in every minute rather than every hour? our experience with
> power fail safety is that you have to run at least 100K cycles,
>
> 2) an important test is to remove power while the file
> system is trying to recover. in the real world, power failures
> are rarely clean, isolated instances. you may get multiple failures in
> as little as 1 second (failures a few hundred miliseconds apart).
You're right, but this was a test for a big hack inside the fs.
The power on/off was just a little addon. If we have finished some left
issues i will setup a real power fail safety test.
Thomas
__________________________________________________
Thomas Gleixner, autronix automation GmbH
auf dem berg 3, d-88690 uhldingen-muehlhofen
fon: +49 7556 919891 , fax: +49 7556 919886
mail: gleixner@autronix.de, http://www.autronix.de
next prev parent reply other threads:[~2002-02-13 20:07 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-13 20:03 NAND flash and JFFS(2) Lance Nakamura
2002-02-13 20:19 ` Thomas Gleixner [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-02-11 23:42 Steve_Chen
2002-02-12 0:10 ` Thomas Gleixner
2002-02-11 15:32 Thomas Gleixner
2002-02-11 15:48 ` Thomas Gleixner
2002-02-11 19:28 ` Thomas Gleixner
[not found] <02020523405103.11497@thomas>
2002-02-06 4:54 ` David Woodhouse
2002-02-06 22:47 ` Thomas Gleixner
2002-02-06 22:55 ` David Woodhouse
2002-02-07 6:51 ` Thomas Gleixner
2002-02-07 7:04 ` David Woodhouse
2002-02-11 13:42 ` Thomas Gleixner
2002-02-11 13:53 ` David Woodhouse
[not found] ` <0202121847440K.00764@thomas>
2002-02-13 11:40 ` Thomas Gleixner
2002-02-05 14:41 Veli-Pekka Ylönen
2002-02-05 15:30 ` David Woodhouse
2002-02-05 17:28 ` Thomas Gleixner
2002-02-05 21:18 ` David Woodhouse
2002-02-05 17:35 ` Veli-Pekka Ylönen
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