[dm-devel] multipath-tools: add INSPUR/MCS to hardware table
Martin Wilck
mwilck at suse.com
Tue Jan 30 07:33:10 UTC 2018
On Tue, 2018-01-30 at 01:54 +0000, Tom Geng(耿芳忠) wrote:
> Hi, Martin,
> .pgfailback = -FAILBACK_IMMEDIATE is OK for INSPUR/MCS in ALUA
> mode. We have tested failback function, the device controller works
> well.
> Thank you a lot.
That's not what I meant. ".pgfailback" controls what happens if a once
lost path comes back online. ".pgpolicy" controls how the load is
distributed over healthy paths. The default .pgpolicy = failover means
that you'll only ever have one "running" path at any time (iow, no load
balancing). I asked you to confirm that that's what you need.
Martin
>
>
>
> -----Original Message-----
> From: Martin Wilck [mailto:mwilck at suse.com]
> Sent: Monday, January 29, 2018 9:38 PM
> To: Tom Geng(耿芳忠) <gengfangzhong at inspur.com>; xose.vazquez at gmail.com
> Cc: dm-devel at redhat.com
> Subject: Re: [dm-devel] multipath-tools: add INSPUR/MCS to hardware
> table
>
> On Mon, 2018-01-29 at 06:04 +0000, Tom Geng(耿芳忠) wrote:
> > Hi, Xose,
> > I sent the patch to dm-devel last week, but forgot to CC you.
> > Please
> > help to review and have chance to submit to the mainline.
> > Thank you a lot.
> >
> >
> > > From 091bae5fec22c61f0c3e6f9ab848fecae5203122 Mon Sep 17 00:00:00
> > > 2001
> >
> > From: Tom Geng <gengfangzhong at inspur.com>
> > Date: Tue, 23 Jan 2018 15:33:09 +0800
> > Subject: [PATCH] multipath-tools: add INSPUR/MCS to hardware table
> >
> > ---
> > libmultipath/hwtable.c | 11 +++++++++++
> > 1 file changed, 11 insertions(+)
> >
> > diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c index
> > 448effe3..93d67df0 100644
> > --- a/libmultipath/hwtable.c
> > +++ b/libmultipath/hwtable.c
> > @@ -1181,6 +1181,17 @@ static struct hwentry default_hw[] = {
> > .pgpolicy = MULTIBUS,
> > .no_path_retry = 30,
> > },
> > + /*
> > + * INSPUR
> > + */
> > + {
> > + /* AS5300/AS5500 G2 */
> > + .vendor = "INSPUR",
> > + .product = "MCS",
> > + .pgpolicy = GROUP_BY_PRIO,
> > + .pgfailback = -FAILBACK_IMMEDIATE,
> > + .prio_name = PRIO_ALUA,
> > + },
> > /*
> > * EOL
> > */
>
> multipath-tools default to .pgpolicy = failover. Please confirm that
> this is really your intention.
>
> Martin
>
> --
> Dr. Martin Wilck <mwilck at suse.com>, Tel. +49 (0)911 74053 2107 SUSE
> Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB
> 21284 (AG Nürnberg)
>
--
Dr. Martin Wilck <mwilck at suse.com>, Tel. +49 (0)911 74053 2107
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton
HRB 21284 (AG Nürnberg)
More information about the dm-devel
mailing list