On Feb 15, 2012, at 10:47 AM, Richard Elling wrote:
> On Feb 15, 2012, at 8:24 AM, Gordon Ross wrote:
>
>> A recent version of the "ashift" patch can be found here:
>> http://yalms.org/cr/zfs-blksize/
>
> Upon further consideration, the UI here is very inconsistent with other
> options.
> Actually I think the UI issues are more difficult and important than the
> actual asize
> change. To wit, no other nvlist options are set via vdev specification. I'd
> much
> rather see any such setting as normal options. In other words, the above code
> specifies something like:
> zpool create zwimming blocksize=4096 c0t0d0
> rather than the more consistent:
> zpool create -b 4k zwimming c0t0d0
Good point. That's an easy enough thing to fix, I think. :-)
- Garrett
>
> -- richard
>
>>
>> There are also changes there for the format command to make it do
>> megabyte aligned partitions. With both changes in place, one can
>> ensure 4k-aligned access on an illumos partition.
>>
>> Gordon
>>
>> On Wed, Feb 15, 2012 at 8:22 AM, Alasdair Lumsden <[email protected]>
>> wrote:
>>> Hi Roy,
>>>
>>>> Any idea how much code this is? Or is it the old patch that was rejected a
>>>> year ago or so?
>>>
>>> It is indeed that patch.
>>>
>>> Illumos wasn't prepared to integrate it, but potentially OI could, as a
>>> workaround until Illumos provide whatever solution they had in mind.
>>>
>>> I'll try and get hold of the code.
>>>
>>> Regards,
>>>
>>> Alasdair
>>>
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