From: Wolfgang Denk <wd@denx.de>
To: Chris Murphy <lists@colorremedies.com>
Cc: "linux-raid@vger.kernel.org List" <linux-raid@vger.kernel.org>,
Roman Mamedov <rm@romanrm.net>,
Roger Heflin <rogerheflin@gmail.com>
Subject: Re: writing zeros to bad sector results in persistent read error
Date: Mon, 09 Jun 2014 21:37:23 +0200 [thread overview]
Message-ID: <20140609193723.79F1B3809B0@gemini.denx.de> (raw)
In-Reply-To: <0E76B97E-96DF-43A3-B8EC-4867964BF8E9@colorremedies.com>
Dear Chris,
In message <0E76B97E-96DF-43A3-B8EC-4867964BF8E9@colorremedies.com> you wrote:
>
> # dd if=/dev/zero of=/dev/sda seek=430234064 count=8 oflag=direct
> 8+0 records in
> 8+0 records out
> 4096 bytes (4.1 kB) copied, 3.73824 s, 1.1 kB/s
This has been pointed out before - if this is a 4k sector drive, then
you should really write in units of 4 k, not 8 x 512 bytes as you do
here.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
"Security is mostly a superstition. It does not exist in nature...
Life is either a daring adventure or nothing." - Helen Keller
next prev parent reply other threads:[~2014-06-09 19:37 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-07 0:11 writing zeros to bad sector results in persistent read error Chris Murphy
2014-06-07 1:26 ` Roger Heflin
2014-06-07 1:51 ` Roman Mamedov
2014-06-07 16:42 ` Chris Murphy
2014-06-07 18:26 ` Chris Murphy
2014-06-08 0:52 ` Chris Murphy
2014-06-08 1:50 ` Roger Heflin
2014-06-08 21:50 ` Chris Murphy
2014-06-08 8:10 ` Wilson Jonathan
2014-06-10 0:09 ` Chris Murphy
2014-06-10 6:52 ` Wilson Jonathan
2014-10-08 17:56 ` Phillip Susi
2014-06-09 19:37 ` Wolfgang Denk [this message]
2014-06-10 2:48 ` Chris Murphy
2014-06-10 13:40 ` Phil Turmel
2014-06-29 0:05 ` Chris Murphy
2014-06-29 23:50 ` Martin K. Petersen
2014-06-30 0:51 ` Roger Heflin
2014-10-08 17:51 ` Phillip Susi
2014-06-10 22:18 ` Eyal Lebedinsky
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=20140609193723.79F1B3809B0@gemini.denx.de \
--to=wd@denx.de \
--cc=linux-raid@vger.kernel.org \
--cc=lists@colorremedies.com \
--cc=rm@romanrm.net \
--cc=rogerheflin@gmail.com \
/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;
as well as URLs for NNTP newsgroup(s).