9fans - fans of the OS Plan 9 from Bell Labs
 help / color / mirror / Atom feed
From: erik quanstrom <quanstro@quanstro.net>
To: 9fans@9fans.net
Subject: Re: [9fans] [RQ:] SATA HD 2+ TB native recommendations
Date: Wed, 20 Feb 2013 16:43:50 -0500	[thread overview]
Message-ID: <c5be49ba309edcfc4643bdb14a0fcb61@ladd.quanstro.net> (raw)
In-Reply-To: <51253FBD.9090605@yahoo.fr>

On Wed Feb 20 16:28:48 EST 2013, nbercher@yahoo.fr wrote:
> On 20/02/2013 15:04, erik quanstrom wrote:
> > 4k drives only work in 9atom.  and they're not recommended
> > as a boot drive.
>
> Do you mean 4k drives that reports 4k block size or 4k drives that
> report 512B?

i understand the terminology to be
4k drive		4k physical sectors, 4k logical (reported to os) sectors
512e drive	4k physical sectors, 512b logical sectors

> My WD hdd hosts a "Plan 9 from Bell Labs" from Bell Labs, it is a
> WDC WD15EARS-00Z.  I'm 99% sure* it is a 4k hdd that reports 512B block
> sizes.  And when I installed the system, I did all the partitioning by
> hand to ensure alignment for every Plan 9 partition.  It was quite a
> pain.

that should work just fine.  it can be pretty slow if ever
alignment gets off.  some of these drives have a 1 sector
offset to help older versions of windows, so it's fiddly.

- erik



      reply	other threads:[~2013-02-20 21:43 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-20  9:37 Peter A. Cejchan
2013-02-20 10:26 ` David du Colombier
2013-02-20 10:45   ` Peter A. Cejchan
2013-02-20 11:22     ` David du Colombier
2013-02-20 13:04       ` dexen deVries
2013-02-20 16:57   ` [9fans] arcnet steve
2013-02-20 17:34     ` Matthew Veety
2013-02-21  6:22     ` lucio
2013-02-21  9:19       ` Steve Simon
2013-02-21 12:54         ` hiro
2013-02-21 14:16           ` Charles Forsyth
2013-02-21 15:09             ` David Leimbach
2013-02-21 17:39           ` lucio
2013-02-21 18:44             ` erik quanstrom
2013-02-21 19:26               ` Jeff Sickel
2013-02-21 19:32                 ` Calvin Morrison
2013-02-21 19:39                   ` hiro
2013-02-21 19:44                     ` Calvin Morrison
2013-02-21 17:36         ` lucio
2013-02-21 21:11           ` steve
2013-02-20 13:44 ` [9fans] [RQ:] SATA HD 2+ TB native recommendations Nicolas Bercher
2013-02-20 14:04 ` erik quanstrom
2013-02-20 21:27   ` Nicolas Bercher
2013-02-20 21:43     ` erik quanstrom [this message]

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=c5be49ba309edcfc4643bdb14a0fcb61@ladd.quanstro.net \
    --to=quanstro@quanstro.net \
    --cc=9fans@9fans.net \
    /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).