[dm-devel] [PATCH 14/15] multipath-tools: replace queue-length by default selector

Hannes Reinecke hare at suse.de
Thu Aug 11 05:58:32 UTC 2016


On 08/10/2016 06:20 PM, Xose Vazquez Perez wrote:
> service-time is more advanced, and it works better in asymmetric and
> asymmetric environments.
> 
> Cc: Hannes Reinecke <hare at suse.de>
> Cc: Benjamin Marzinski <bmarzins at redhat.com>
> Cc: Christophe Varoqui <christophe.varoqui at opensvc.com>
> Cc: device-mapper development <dm-devel at redhat.com>
> Signed-off-by: Xose Vazquez Perez <xose.vazquez at gmail.com>
> ---
>  libmultipath/hwtable.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
> index bc2d407..edfd8fe 100644
> --- a/libmultipath/hwtable.c
> +++ b/libmultipath/hwtable.c
> @@ -198,7 +198,6 @@ static struct hwentry default_hw[] = {
>  	{
>  		.vendor        = "XtremIO",
>  		.product       = "XtremApp",
> -		.selector      = "queue-length 0",
>  		.pgpolicy      = MULTIBUS,
>  		.pgfailback    = FAILBACK_UNDEF,
>  	},
> @@ -823,7 +822,6 @@ static struct hwentry default_hw[] = {
>  	{
>  		.vendor        = "PURE",
>  		.product       = "FlashArray",
> -		.selector      = "queue-length 0",
>  		.pgpolicy      = MULTIBUS,
>  		.pgfailback    = FAILBACK_UNDEF,
>  		.fast_io_fail  = 10,
> 
I would _not_ do this, unless tested on the real hardware.
Just claiming 'the other one is more advanced' is not enough here.

NACK.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		   Teamlead Storage & Networking
hare at suse.de			               +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
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