From: Michael Mol <mikemol@gmail.com>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] the same hard-drives, different number of sectors...
Date: Thu, 27 Oct 2011 15:22:16 -0400 [thread overview]
Message-ID: <CA+czFiA1V=a50ZTSU3x25d8qb7yoxEVuPA5Amz5L0k2XnCuVOA@mail.gmail.com> (raw)
In-Reply-To: <4EA9A5F7.9050904@gmail.com>
On Thu, Oct 27, 2011 at 2:41 PM, Jarry <mr.jarry@gmail.com> wrote:
> Hi, perhaps someone could explain this to me:
>
> I have bouth two the same hard-drives. The same model
> (Hitachi HUA722050CLA330), the same firmware (JP20A3EA),
> the same size (500GB). Well, not exactly. Both hdparm
> and fdisk report different number of sectors (976771055
> versus 976773168). Although not a big difference, yet
> I expected them to be exactly the same (want to use
> them for raid1).
>
> So how is it possible they do not have the same number
> of sectors? I have bought them from one supplier, even
> their serial numbers are very close (only the last 2
> characters out of 24 are different)...
Should be fine. The raid implementation will use the smaller of the
two for a baseline.
As for why, I can only make educated guesses.
--
:wq
next prev parent reply other threads:[~2011-10-27 19:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-27 18:41 [gentoo-user] the same hard-drives, different number of sectors Jarry
2011-10-27 19:22 ` Michael Mol [this message]
2011-10-27 19:35 ` Mark Knecht
2011-10-31 9:38 ` James Broadhead
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='CA+czFiA1V=a50ZTSU3x25d8qb7yoxEVuPA5Amz5L0k2XnCuVOA@mail.gmail.com' \
--to=mikemol@gmail.com \
--cc=gentoo-user@lists.gentoo.org \
/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