From: Eric Sandeen <sandeen@sandeen.net>
To: Christoph Hellwig <hch@infradead.org>
Cc: Michael Monnerie <michael.monnerie@is.it-management.at>, xfs@oss.sgi.com
Subject: Re: 4k sector drives
Date: Sat, 24 Jul 2010 16:07:03 -0500 [thread overview]
Message-ID: <4C4B55F7.2090501@sandeen.net> (raw)
In-Reply-To: <20100724084751.GA32006@infradead.org>
Christoph Hellwig wrote:
> On Fri, Jul 23, 2010 at 12:59:07PM +0200, Michael Monnerie wrote:
>> On Freitag, 23. Juli 2010 Christoph Hellwig wrote:
>>> -b size=4096 is the default anyway, for 4k sector drivers you also
>>> want -s size=4096, which you do not want for 512 byte sector disks.
>> Thanks for clarification. Should I use "-s size=4096" despite the drive
>> saying 512b sectors? It's a "hidden" 4K sector drive, so maybe declaring
>> it extra for XFS helps performance? Or does it not matter at all?
>
> If it really is one using -s size=4096 is the right thing to do.
Haven't read the whole thread so maybe this is redundant, but make
sure all partitions (if any) are 4k aligned as well (unless it has
the secret-handshake sector 63 offset...)
-Eric
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next prev parent reply other threads:[~2010-07-24 21:04 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-21 10:33 4k sector drives Khelben Blackstaff
2010-07-21 12:21 ` Michael Monnerie
2010-07-23 6:09 ` Michael Monnerie
2010-07-23 9:58 ` Christoph Hellwig
2010-07-23 10:42 ` Stan Hoeppner
2010-07-23 10:47 ` Christoph Hellwig
2010-07-23 12:41 ` Stan Hoeppner
2010-07-23 10:59 ` Michael Monnerie
2010-07-23 12:56 ` Emmanuel Florac
2010-07-23 13:10 ` Stan Hoeppner
2010-07-23 13:38 ` Matthias Schniedermeyer
2010-07-23 13:50 ` Emmanuel Florac
2010-07-23 14:13 ` Matthias Schniedermeyer
2010-07-24 8:47 ` Christoph Hellwig
2010-07-24 21:07 ` Eric Sandeen [this message]
2010-07-24 22:35 ` Michael Monnerie
2010-07-25 15:33 ` Christoph Hellwig
-- strict thread matches above, loose matches on Subject: below --
2010-07-23 15:02 Khelben Blackstaff
2010-07-23 15:28 ` Emmanuel Florac
2010-07-23 9:19 Khelben Blackstaff
2010-07-21 7:53 Khelben Blackstaff
2010-07-21 9:14 ` Michael Monnerie
2010-07-21 10:33 ` Emmanuel Florac
2010-07-20 18:58 Michael Monnerie
2010-07-20 20:30 ` Stan Hoeppner
2010-07-20 20:39 ` Emmanuel Florac
2010-07-20 21:34 ` Michael Monnerie
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