From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Fri, 14 Dec 2012 15:10:49 -0500
From: Mike Snitzer <snitzer@redhat.com>
Message-ID: <20121214201049.GA3859@redhat.com>
References: <50C9F2D6.7090802@ubuntu.com> <20121214192953.GB3148@redhat.com>
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Subject: Re: [linux-lvm] Non 512 byte sectors
Reply-To: LVM general discussion and development <linux-lvm@redhat.com>
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To: Phillip Susi <psusi@ubuntu.com>
Cc: LVM general discussion and development <linux-lvm@redhat.com>

On Fri, Dec 14 2012 at  2:56pm -0500,
Phillip Susi <psusi@ubuntu.com> wrote:

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> 
> On 12/14/2012 2:29 PM, Mike Snitzer wrote:
> > On Thu, Dec 13 2012 at 10:23am -0500, Phillip Susi
> > <psusi@ubuntu.com> wrote:
> > 
> >> -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
> >> 
> >> Is it possible to get dm to report > 512 byte sector size?  If
> >> so, how?
> > 
> > DM will automatically stack the physical and logical sector sizes
> > based on the devices that are assembled into the DM device.
> 
> Yes, but what if I am using two physical disks with 512 byte sectors,
> but want the dm to appear to have 2048 byte sectors?

DM has no role in fabricating devices with artificial limits.
What do you hope to accomplish with this?