[illumos-Advocates] RTI: RFE #937 - WRITE_SAME support for COMSTAR

[Garrett D'Amore]

I recall that he did quite a lot of perf testing.  Was there something specifically you were looking for?   (I'm happy with the testing, but I don't want to overrule you if you felt there was something specific you wanted to see.)

  -- Garrett D'Amore

On Jun 1, 2011, at 7:13 PM, Gordon Ross <gordon.w.ross at gmail.com> wrote:

> Sorry for the lack of action on this, Dan.
> 
> I remember now, I wasn't sure whether the testing was adequate.
> Nobody else commented either way.
> 
> So, other advocates:  Anyone want more testing?
> Otherwise, I'm inclined to approve Dan's RTI.
> Let me know today, please, if you want more time.
> 
> Thanks,
> Gordon
> 
> 
> On Fri, May 20, 2011 at 3:19 PM, Dan McDonald <danmcd at nexenta.com> wrote:
>> On Fri, May 20, 2011 at 03:12:58PM -0400, Gordon Ross wrote:
>>> Hi Dan,
>>> 
>>> What testing is appropriate for this?
>>> and what has been done?
>> 
>> In-house, I've done write-same testing on the NCP3 version of this change.  I
>> used VMware to iSCSI-initiate to an NS box running these changes.  I wiped
>> 9GB of disk clean using write-same with multiple parameters and even one
>> implementation difference.  I was told the beta (not yet released) VMware we
>> have in-house is the only one that speaks write-same.  OTOH, Google searching
>> indicates release VMware ESX4.2 does it.  I found it hard to get even basic
>> tests done.
>> 
>> If you want some Illumos-specific testing or further tests on the NCP3
>> version, please let me know.  Off the top of my head, I can see maybe:
>> 
>>        - Finding more VMware instances to do parallel testing (though
>>          multiple VMwares sharing the same LU... is that done in the real
>>          world?  COMSTAR already separates LUs rather well).
>> 
>>        - Something I haven't yet imagined.
>> 
>> Hope this helps, and I appreciate any further suggestions,
>> Dan
>> 
> 
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