Sorry, if you meant distinguishing between true 512 and emulated
512/4k, I don't know, it may be vendor-specific as to whether they
expose it through device commands at all.


On Fri, Jun 15, 2012 at 6:02 PM, Timothy Coalson <> wrote:
> On Fri, Jun 15, 2012 at 5:35 PM, Jim Klimov <> wrote:
>> 2012-06-16 0:05, John Martin wrote:
>>>> Its important to know...
>>> ...whether the drive is really 4096p or 512e/4096p.
>> BTW, is there a surefire way to learn that programmatically
>> from Solaris or its derivates
> prtvtoc <device> should show the block size the OS thinks it has.  Or
> you can use format, select the disk from a list that includes the
> model number and size, and use "verify".
> Tim
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