[dm-devel] multipath state discrepancies between user and kernel space
christophe varoqui
christophe.varoqui at free.fr
Fri Jul 1 22:07:40 UTC 2005
On ven, 2005-07-01 at 17:30 -0400, goggin, edward wrote:
>
> (1) In the event that automatic path group failback is not configured, which
> value for the highest
> priority path group should be displayed by "multipath -l" -- the one used by
> the multipath target
> driver in the kernel or the path group which is actually the highest
> priority path group at that
> moment in time? Or both -- or still do (see issue (2) below) for path
> state?
>
> The notion of highest priority path group in the kernel may be different
> from the actual highest
> priority path group in a case whereby:
>
> (a) auto failback is not enabled
> (b) all paths to the highest priority path group are failed
> (c) multipath is run manually -- causing path group switching to another
> path group
> (d) one or more of the paths that were had failed are now made active
> again -- yet
> because auto failback is not enabled, this path group is not made
> the highest
> priority path group in the kernel, although by definition it is the
> highest priority
> path group
>
Would printing the "PG-summed path priorities" value for each PG meet
your needs/taste ?
Regards,
--
christophe varoqui <christophe.varoqui at free.fr>
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