From: Nicolas Bercher <nbercher@yahoo.fr>
To: 9fans@9fans.net
Subject: Re: [9fans] [RQ:] SATA HD 2+ TB native recommendations
Date: Wed, 20 Feb 2013 22:27:25 +0100 [thread overview]
Message-ID: <51253FBD.9090605@yahoo.fr> (raw)
In-Reply-To: <c87a9fc8381e26e65391c302943c2fa2@kw.quanstro.net>
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've found it hard to tell, even reading the data sheets if a drive
> is 512 or 4k. but many drives have the lba number on the sticker. and
> for example 3907029168 corresponds to 512-byte sectors, 2T.
>
> 3907029168*512/1000^4 = 2.0
>
> - erik
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.
I didn't take a look seriously to the sticker, I will next time the
box will be opened.
Nicolas
--
* If I remember well, I did some tests with misaligned partitions
under Linux, R/W operations were so slow...! To me, it's hard to be
sure whether it's a 512B or 4kB hdd without performing some tests, like
this.
next prev parent reply other threads:[~2013-02-20 21:27 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 [this message]
2013-02-20 21:43 ` erik quanstrom
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