linux-kernel - Re: [LSF/MM TOPIC] really large storage sectors

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Message-ID: <52DF6FE7.2080901@suse.de>
Date:	Wed, 22 Jan 2014 08:14:47 +0100
From:	Hannes Reinecke <hare@...e.de>
To:	Ric Wheeler <rwheeler@...hat.com>, linux-scsi@...r.kernel.org,
	linux-ide@...r.kernel.org, linux-mm@...ck.org,
	linux-fsdevel@...r.kernel.org, lsf-pc@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org
Subject: Re: [LSF/MM TOPIC] really large storage sectors - going beyond 4096
 bytes

On 01/22/2014 06:20 AM, Joel Becker wrote:
> On Tue, Jan 21, 2014 at 10:04:29PM -0500, Ric Wheeler wrote:
>> One topic that has been lurking forever at the edges is the current
>> 4k limitation for file system block sizes. Some devices in
>> production today and others coming soon have larger sectors and it
>> would be interesting to see if it is time to poke at this topic
>> again.
>>
>> LSF/MM seems to be pretty much the only event of the year that most
>> of the key people will be present, so should be a great topic for a
>> joint session.
> 
> Oh yes, I want in on this.  We handle 4k/16k/64k pages "seamlessly," and
> we would want to do the same for larger sectors.  In theory, our code
> should handle it with the appropriate defines updated.
> 
+1

The shingled drive folks would really love us for this.
Plus it would make live really easy for those type of devices.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		      zSeries & Storage
hare@...e.de			      +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)
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