From: "Jörn Engel" <joern@logfs.org>
To: Pavel Machek <pavel@suse.cz>
Cc: Chris Snook <csnook@redhat.com>,
Stefan Monnier <monnier@iro.umontreal.ca>,
linux-kernel@vger.kernel.org
Subject: Re: Filesystem for block devices using flash storage?
Date: Sun, 12 Oct 2008 15:01:04 +0200 [thread overview]
Message-ID: <20081012130103.GA14119@logfs.org> (raw)
In-Reply-To: <20081011143552.GA1556@ucw.cz>
On Sat, 11 October 2008 16:35:52 +0200, Pavel Machek wrote:
>
> I don't think ext3 is safe w.r.t. whole eraseblocks disappearing. So
> if you write data 'nearby' root directory and power fails, bye bye
> filesystem, and journal will not help.
No device I've ever seen is that stupid.
Judging the reports I have of actual corruptions, the main problem
appears to be write disturb. Writes tend to inject charge into
neighboring blocks. If any part of the device gets hammered with
writes, there is a good chance of corruption nearby.
Write performance is another issue, of course.
Jörn
--
You ain't got no problem, Jules. I'm on the motherfucker. Go back in
there, chill them niggers out and wait for the Wolf, who should be
coming directly.
-- Marsellus Wallace
next prev parent reply other threads:[~2008-10-12 13:01 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-08 16:38 Filesystem for block devices using flash storage? Stefan Monnier
2008-10-08 20:51 ` Chris Snook
2008-10-11 14:35 ` Pavel Machek
2008-10-11 16:29 ` Arjan van de Ven
2008-10-11 17:51 ` Alan Cox
2008-10-12 13:01 ` Jörn Engel [this message]
2008-10-13 10:57 ` Pavel Machek
2008-10-13 12:10 ` Jörn Engel
2008-10-14 18:04 ` Lennart Sorensen
2008-10-12 14:35 ` Jörn Engel
2008-10-13 17:30 ` Chris Snook
2008-10-13 18:13 ` Jörn Engel
2008-10-13 18:38 ` Chris Snook
2008-10-14 11:18 ` Jörn Engel
2008-10-14 13:05 ` Stefan Monnier
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20081012130103.GA14119@logfs.org \
--to=joern@logfs.org \
--cc=csnook@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=monnier@iro.umontreal.ca \
--cc=pavel@suse.cz \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox