Thanks, Drew!

On Apr 11, 2012, at 10:02 PM, Drew Fisher wrote:

> LGTM!
> 
> Thanks for working on the fix to this!
> 
> -Drew
> 
> 
> 
> On 4/11/12 7:58 PM, Jesse Butler wrote:
>> Could I get a review for:
>> 
>>      7150578 install discovery ignores device path lun numbers
>> 
>> This CR is a small piece of the overall multipath target selection issue 
>> that the discovery code has. When we encounter multipath targets with MPxIO 
>> disabled, as is the default on SPARC, everything kind of falls apart. This 
>> is being worked separately.
>> 
>> During that work, this bug was discovered. For each drive we discover, we 
>> retrieve a WWN. If the WWN name is found, we use it. We throw out subsequent 
>> drives with the same WWN.
>> 
>> This is a problem in a few scenarios, most commonly when a RAID array is 
>> used. Most RAID arrays use the WWN of the HBA and a LUN number to identify a 
>> LUN. So, the current code will only discover one LUN per WWN, throwing away 
>> all the other LUNs using the same WWN. This could be the entire array on 
>> some configurations. Further, the ones that are put on the list are missing 
>> their LUN number.
>> 
>> This changeset tacks the LUN number onto the end of the WWN string if it's 
>> in use, thus getting around the bad duplication avoidance, and setting a 
>> full WWN+LUN descriptor for each Disk object.
>> 
>>      https://cr.opensolaris.org/action/browse/caiman/jesseb/7150578/webrev/
>> 
>> Thanks
>> Jesse
>> 
>> _______________________________________________
>> caiman-discuss mailing list
>> [email protected]
>> http://mail.opensolaris.org/mailman/listinfo/caiman-discuss

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