[OmniOS-discuss] 4kn or 512e with ashift=12

[Bob Friesenhahn]

On Mon, 21 Mar 2016, Richard Elling wrote:
>>
>> Adding the ashift argument to zpool was discussed every few years and so far was always deemed not enterprisey enough for the Solaris heritage, so the setup to tweak sd driver reports and properly rely on that layer was pushed instead.
>
> The issue is that once a drive model lies, then the Solaris approach is to encode
> the lie into a whitelist, so that the lie is always handled properly. The whitelist is in the
> sd.conf file.

Does this approach require that Illumos users only use drive hardware 
much older than the version of Illumos they happen running since 
outdated whitelist won't know about the new lies?

What if a user is using classic drives but wants to be prepared to 
install newer drives which require ashift=12?

Bob
-- 
Bob Friesenhahn
bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/