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* feature="1 queue_if_no_path" vs. no_path_retry=queue
@ 2011-09-16 22:47 Oren Held
  2011-09-20  3:05 ` Kiyoshi Ueda
  0 siblings, 1 reply; 2+ messages in thread
From: Oren Held @ 2011-09-16 22:47 UTC (permalink / raw)
  To: dm-devel

Hi,

According to all docs I've read, and some code, the following settings seem to have the same effect:
1. Setting features = "1 queue_if_no_path"
2. Setting no_path_retry = "queue"

Now that's confusing, especially when having conflicting configuration, e.g., from hwtable.c:
                /* IBM DS4100 */
                .vendor        = "IBM",
                .product       = "1724",
                .features      = "1 queue_if_no_path",
                .no_path_retry = 300,

It's not clear enough what would be the resulting behavior of this configuration.

Did I get it right? Is there a reason for keeping the features = "1 queue_if_no_path" option available in multipath-tools?

Thanks

Regards

- Oren

^ permalink raw reply	[flat|nested] 2+ messages in thread
* Re: feature="1 queue_if_no_path" vs. no_path_retry=queue
  2011-09-16 22:47 feature="1 queue_if_no_path" vs. no_path_retry=queue Oren Held
@ 2011-09-20  3:05 ` Kiyoshi Ueda
  0 siblings, 0 replies; 2+ messages in thread
From: Kiyoshi Ueda @ 2011-09-20  3:05 UTC (permalink / raw)
  To: device-mapper development

Hi,

Oren Held wrote:
> Hi,
> 
> According to all docs I've read, and some code, the following settings seem to have the same effect:
> 1. Setting features = "1 queue_if_no_path"
> 2. Setting no_path_retry = "queue"
> 
> Now that's confusing, especially when having conflicting configuration, e.g., from hwtable.c:
>                 /* IBM DS4100 */
>                 .vendor        = "IBM",
>                 .product       = "1724",
>                 .features      = "1 queue_if_no_path",
>                 .no_path_retry = 300,
> 
> It's not clear enough what would be the resulting behavior of this configuration.
> 
> Did I get it right? Is there a reason for keeping the features = "1 queue_if_no_path" option available in multipath-tools?

See http://marc.info/?l=dm-devel&m=124572577028515&w=2

Thanks,
Kiyoshi Ueda


> Thanks
> 
> Regards
> 
> - Oren

^ permalink raw reply	[flat|nested] 2+ messages in thread
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2011-09-16 22:47 feature="1 queue_if_no_path" vs. no_path_retry=queue Oren Held
2011-09-20  3:05 ` Kiyoshi Ueda

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