From: David Woodhouse <dwmw2@infradead.org>
To: Padraig Brady <Padraig@AnteFacto.com>
Cc: Pavel Machek <pavel@suse.cz>,
kernel list <linux-kernel@vger.kernel.org>,
jffs-dev@axis.com
Subject: Re: jffs on non-MTD device?
Date: Mon, 11 Jun 2001 13:41:08 +0100 [thread overview]
Message-ID: <3437.992263268@redhat.com> (raw)
In-Reply-To: <3B24AF66.3010602@AnteFacto.com>
In-Reply-To: <3B24AF66.3010602@AnteFacto.com> <20010525005253.A16005@bug.ucw.cz>
Padraig@AnteFacto.com said:
> Some (most?) CF disks have hareware wareleveling. I use ext2 with
> e2compr patch.
There are some who want a journalling filesystem on their CF device.
Did anyone do e3compr yet? :)
Personally, I wouldn't bother with it - these things have a form of
pseudo-filesystem, probably similar to FTL or NFTL, implemented internally
to emulate a block device, and it's been reported that they don't do that
particularly well - they break down and lose data if you put them through
the kind of repeated power cycle tests that JFFS and JFFS2 have been
subjected to. A journalling filesystem on an unreliable medium is sort of
pointless.
Far better to use a real flash device. But maybe I'm biased :)
--
dwmw2
prev parent reply other threads:[~2001-06-11 12:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-24 22:52 jffs on non-MTD device? Pavel Machek
2001-05-25 8:44 ` David Woodhouse
2001-06-11 11:45 ` Padraig Brady
2001-06-11 12:41 ` David Woodhouse [this message]
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