[openib-general] [PATCH] IB/SRP: Enable multichannel

Lakshmanan, Madhu mlakshmanan at silverstorm.com
Sun Oct 1 06:23:15 PDT 2006


> Quoting r. Michael S. Tsirkin <mst at mellanox.co.il>:
> Subject: RE: [openib-general] [PATCH] IB/SRP: Enable multichannel
> >Quoting r. Lakshmanan, Madhu <mlakshmanan at silverstorm.com>:
> >Subject: RE: [openib-general] [PATCH] IB/SRP: Enable multichannel
> >
> >Quoting r.  Vu Pham [vuhuong at mellanox.com]:
> > >Subject: Re: [PATCH] IB/SRP: Enable multichannel
> > >What is the advantage to have multiple connections/qps on the same
> > >physical port to the same target? The disavantages are wasting
> > >resources, instability, no fail-over on physical port error...
> >
> >The advantage is if the target in question is an IOC that connects to
a
> > FC SAN for example. In this case, the host is physically connected
to
> > the same IOC, but can maintain independent logical connections to
> > specific storage devices on the SAN that are "behind" the IOC.
>
> We could just let the user specify the Id Ext when adding the device.
> How does this sound?
> --
> MST

I agree. That was exactly what I had in mind. I'll work on the patch
that does that.

Madhu





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