On Mar 3, 2023, at 12:41 PM, Martin Wilck <mwilck@xxxxxxxx> wrote:
>
> On Fri, 2023-03-03 at 09:18 -0800, Brian Bunker wrote:
>>>
>> Hello Martin,
>>
>> Doesn’t "something in between failed and up” semantics describe ALUA
>> state transitioning pretty well?
>
> transitioning - yes. standby - ??
>
> Martin
>
The checking for standby is 14 years old, and says that TUR returns
a unit attention when the path is in standby. I am not sure why that
wouldn’t be handled by this code above: I would think there should be
just one unit attention for each I_T_L when an ALUA state change
happens.Not sure how it exceeds the retry count.
if (key == 0x6) {
/* Unit Attention, retry */
if (—retry_tur)
goto retry;
}
>From my perspective failing a path for ALUA state standby is reasonable
since it is not an active state.
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