[dm-devel] [PATCH] scsi_dh_alua: Add module parameter to allow failover to non preferred path without STPG

[Hannes Reinecke]

On 03/28/2013 11:07 PM, Stewart, Sean wrote:
> Currently ALUA device handler sends STPG command during failover and failback.
> Failover can be optimized by implicit failover (by not to sending STPG command),
> when 1 is passed as hwhandler parameter in multipath.conf. ex "2 alua 1". We may
> need to pass the parameter through module param for alua device handler to optimize
> failover if incase retain_attached_hwhandler set in multipath.conf and hwhandler
> is set with non-tpgs device handler ex: '1 rdac'.
>
> Signed-off-by: Vijay Chauhan <vijay.chauhan at netapp.com>
> Signed-off-by: Sean Stewart <Sean.Stewart at netapp.com>
>
Acked-by: Hannes Reinecke <hare at suse.de>

Cheers,

Hannes