Re: [LSF/MM TOPIC] really large storage sectors - going beyond 4096 bytes

Hannes Reinecke
2014-01-22T07:14:47Z

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@suse.de +49 911 74053 688
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