From: Mike Snitzer <snitzer@redhat.com>
To: dm-devel@redhat.com
Subject: Re: multipath: change the DEFAULT_MINIO for the request based multipath
Date: Mon, 31 Jan 2011 22:13:16 -0500 [thread overview]
Message-ID: <20110201031316.GA10957@redhat.com> (raw)
In-Reply-To: <20110201022120.GA24297@us.ibm.com>
On Mon, Jan 31 2011 at 9:21pm -0500,
Malahal Naineni <malahal@us.ibm.com> wrote:
> Christophe Varoqui [christophe.varoqui@gmail.com] wrote:
> > I pushed an implementation of the fully capable solution.
> >
> > The behaviour is unchanged with dm-multipath <= 1.1.0
> > For newer driver, if no additional config is added to multipath.conf the
> > minio will be set to 1.
> >
> > If Mike S. tests prove this value is not always optimal, it can be tuned
> > per device in hwtable (hwe->minio_rq) and overridden in multipath.conf
> > device{} and multipath{} section.
> >
> > This seemed to be the most consistent behaviour, to me. But feel free to
> > disagree.
> >
> > Please test carefully as the patch is quite invasive. I built and tested
> > lightly with a NetApp iSCSI simulator. The session produced the
> > following output
>
> Where is the patch? I would like test it. I have a patch set that does
> what I said and was planning on adding a field to hwentry structure
> without adding a new config keyword in /etc/multipath.conf. It doesn't
> appear that big a change, but would like to see your patch.
Christophe committed it already, see the following multipath-tools
commit:
2b68b83 Support different 'minio' values for rq and bio based dm-multipath
next prev parent reply other threads:[~2011-02-01 3:13 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-19 21:30 [PATCH] [RFC] multipath: change the DEFAULT_MINIO for the request based multipath Malahal Naineni
2011-01-20 7:32 ` Hannes Reinecke
2011-01-20 16:07 ` Mike Snitzer
2011-01-21 7:03 ` Jun'ichi Nomura
2011-01-21 8:47 ` Christophe Varoqui
2011-01-21 14:12 ` Mike Snitzer
2011-01-21 14:46 ` Christophe Varoqui
2011-01-21 17:39 ` Malahal Naineni
2011-01-25 8:56 ` Jun'ichi Nomura
2011-01-26 2:23 ` Malahal Naineni
2011-01-26 17:27 ` nishant mungse
2011-01-27 15:16 ` nishant mungse
2011-01-31 23:53 ` Christophe Varoqui
2011-02-01 2:21 ` Malahal Naineni
2011-02-01 3:13 ` Mike Snitzer [this message]
2011-02-01 8:14 ` Malahal Naineni
2011-02-01 8:13 ` Malahal Naineni
2011-02-01 9:00 ` Christophe Varoqui
2011-02-01 9:51 ` Malahal Naineni
2011-01-21 13:26 ` Mike Snitzer
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