[dm-devel] [PATCH] libmultipath: update 3PARdata builtin config

[Benjamin Marzinski]

On Wed, Jun 28, 2017 at 07:48:38PM +0200, Xose Vazquez Perez wrote:
> On 06/26/2017 09:03 PM, Benjamin Marzinski wrote:
> 
> > This updated config comes from hp.
> 
> It would be nice to have more information.
> Why and when is this needed?

I assume the change to dev_loss_tmo is simply a preference issue. Like
Netapp, they don't want their devices to get auto-removed when they go
down. I also assume that in their internal testing, they hit cases where
5 seconds wasn't enough time to wait for some transient issue with the
array to resolve.  At any rate, I'm simply passing along their request,
which seems like a perfectly reasonable one to me.

-Ben

> 
> 
> BTW: HPE 'MSA 205x' and 'StoreVirtual 3200'(LeftHand) are missing.
> 
> > Signed-off-by: Benjamin Marzinski <bmarzins at redhat.com>
> > ---
> >  libmultipath/hwtable.c | 2 ++
> >  1 file changed, 2 insertions(+)
> > 
> > diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
> > index 390d143..54bdcfc 100644
> > --- a/libmultipath/hwtable.c
> > +++ b/libmultipath/hwtable.c
> > @@ -49,6 +49,8 @@ static struct hwentry default_hw[] = {
> >  		.hwhandler     = "1 alua",
> >  		.prio_name     = PRIO_ALUA,
> >  		.no_path_retry = 18,
> > +		.fast_io_fail  = 10,
> > +		.dev_loss      = MAX_DEV_LOSS_TMO,
> >  	},
> >  	{
> >  		/* RA8000 / ESA12000 */
> >