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Groups > linux.debian.user > #187327

Re: disk partitioners vs disk with 2048 byte phusical sectors

From Michael Stone <mstone@debian.org>
Newsgroups linux.debian.user
Subject Re: disk partitioners vs disk with 2048 byte phusical sectors
Date 2017-09-27 19:30 +0200
Message-ID <uuojM-63X-9@gated-at.bofh.it> (permalink)
References <uujWO-2Bu-3@gated-at.bofh.it> <uukga-35a-31@gated-at.bofh.it> <uumBj-4YL-5@gated-at.bofh.it>
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On Wed, Sep 27, 2017 at 11:32:31AM -0400, Gene Heskett wrote:
>Oh? The last time I used fdisk I wound up with writes under 15
>megs/second, and read of about 21 megs/second. Fixed it so it was
>aligned, and its now around 120 megs/second both ways.

And that was presumably a very long time ago. Current tools just start 
the first partition at a large power of two offset and alignment issues 
consequently aren't a problem unless you work at it. (This was mainly 
only an issue with old DOS-style partition tables that started the first 
partition at 32256 bytes. The 1M first partition offset has been the 
default in debian I think since wheezy.)

Mike Stone

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Thread

disk partitioners vs disk with 2048 byte phusical sectors Gene Heskett <gheskett@shentel.net> - 2017-09-27 14:50 +0200
  Re: disk partitioners vs disk with 2048 byte phusical sectors Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-09-27 15:10 +0200
    Re: disk partitioners vs disk with 2048 byte phusical sectors "Thomas Schmitt" <scdbackup@gmx.net> - 2017-09-27 15:40 +0200
    Re: disk partitioners vs disk with 2048 byte phusical sectors Gene Heskett <gheskett@shentel.net> - 2017-09-27 17:40 +0200
      Re: disk partitioners vs disk with 2048 byte phusical sectors "Thomas Schmitt" <scdbackup@gmx.net> - 2017-09-27 18:10 +0200
        Re: disk partitioners vs disk with 2048 byte phusical sectors Gene Heskett <gheskett@shentel.net> - 2017-09-27 19:30 +0200
          Re: disk partitioners vs disk with 2048 byte phusical sectors "Thomas Schmitt" <scdbackup@gmx.net> - 2017-09-27 21:20 +0200
      Re: disk partitioners vs disk with 2048 byte phusical sectors David Wright <deblis@lionunicorn.co.uk> - 2017-09-27 18:40 +0200
      Re: disk partitioners vs disk with 2048 byte phusical sectors Michael Stone <mstone@debian.org> - 2017-09-27 19:30 +0200
        Re: disk partitioners vs disk with 2048 byte phusical sectors Gene Heskett <gheskett@shentel.net> - 2017-09-27 19:40 +0200
  Re: disk partitioners vs disk with 2048 byte phusical sectors Cousin Stanley <cousinstanley@gmail.com> - 2017-09-27 19:40 +0200

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