[OpenIndiana-discuss] The+AShift+Value+and+Advanced+Format+disks+and+ZFS

Rich rercola at acm.jhu.edu
Sun Jun 17 19:54:47 UTC 2012


https://github.com/illumos/illumos-gate/commit/2384d9f8fcca0a7ef8b3ae674d94df82832c0fce
sure looks like it does this in Illumos, though I don't think the OI
kernel in 151a4 is that new [OI IllumOS kernel is dated April 2012,
that patch went into IllumOS early May].

- Rich

On Sun, Jun 17, 2012 at 12:04 PM, Hans J. Albertsson
<hans.j.albertsson at branneriet.se> wrote:
> Are you saying that you have no idea at all if these facilities have been
> implemented anywhere??
>
> Can anyone else say???
>
>
> On 2012-06-17 17:51, Richard Elling wrote:
>>
>> On Jun 16, 2012, at 8:52 AM, Jim Klimov wrote:
>>
>>> 2012-06-16 19:41, Hans J. Albertsson wrote:
>>>>
>>>> are the overrides described in that wiki page available in OI151a4??
>>>>>
>>>>>
>>>>> http://wiki.illumos.org/display/illumos/The+AShift+Value+and+Advanced+Format+disks+and+ZFS
>>>
>>> Renamed to:
>>> http://wiki.illumos.org/display/illumos/ZFS+and+Advanced+Format+disks
>>>
>>> In the course of discussion, and by further updates from Richard Elling,
>>> I was led to believe that the sd.conf overrides are part of the lowlevel
>>> illumos-gate shared by several distros, including OI.
>>
>> There are two ways to set overrides:
>> 1. compile them into the driver, which was common for Sun to do for Sun
>> hardware
>> 2. add them to the driver configuration files
>>
>> IMHO, #2 is much easier than compiling them in, and can be done more
>> easily by
>> distros. When I worked at Nexenta, I proposed fixes that did change the
>> default
>> driver config files, but I do not follow Nexenta's current distributions
>> to see if the
>> fixes were integrated. In any case, your distribution might have applied
>> changes there.
>>  -- richard
>>
>
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