Hello Christophe,
Christophe Varoqui wrote:
> Hi,
>
> the precedence chain is :
>
> multipaths > user-specified per-device > default per-device > default
>
> The issue adressed by Ben's patch would not be solved by your suggestion,
> as far as I can see. The proposed override section is just a way not repeat
> a per-device in each multipath (insane) or device (tedious) section.
care to explain why setting the precedence to
multipaths > user-specified per-device > default > default per-device
would not fix the issue?
Lets assume the following default device and user configuration:
.vendor = "COMPELNT",
.product = "Compellent Vol",
.pgpolicy = MULTIBUS,
.pgfailback = -FAILBACK_IMMEDIATE
.no_path_retry = NO_PATH_RETRY_QUEUE,
.checker_name = TUR
defaults {
no_path_retry fail
}
devices {
device {
vendor "COMPELNT"
product "Compellent Vol"
path_grouping_policy "group_by_prio"
}
}
multipaths {
multipath {
wwid 1234
failback 15
}
}
The default section should change no_path_retry from "queue" to "fail".
The device section should change path_grouping_policy from "multibus"
to "group_by_prio" for "COMPELNT/Compellent Vol".
The multipath section should change failback from "immediate" to 15
for wwid 1234.
The path_checker would still be "tur".
Is this not what the "overrides" patch intended?
Sebastian
--
dm-devel mailing list
dm-devel@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/dm-devel
