[dm-devel] RFC: dm-switch target [v2]

Pasi Kärkkäinen pasik at iki.fi
Sat Oct 22 15:08:24 UTC 2011


On Fri, Sep 02, 2011 at 05:56:11PM -0500, Jim_Ramsay at DELL.com wrote:
> Pasi Kärkkäinen wrote:
> >On Wed, Aug 31, 2011 at 04:19:24PM -0400, Jim Ramsay wrote:
> >> We propose a new DM target, dm-switch, which can be used to
> >> efficiently implement a mapping of IOs to underlying block devices in
> >> scenarios where there are: (1) a large number of address regions, (2)
> >> a fixed size of these address regions, (3) no pattern than allows for
> >> a compact description with something like the dm-stripe target.
> >
> > Great, I've been waiting for this module :)
> 
> Thanks, it's great to hear the interest!
> 
> > Do you guys have some userland tool/script to populate the page
> > table in dm-switch, or is there some other way to test this
> > (with eql storage) ?
> 
> We are planning on providing some sample code, which will
> demonstrate how to upload a page table from userland via the
> netlink socket.
> 

Hello again,

Any news about this sample code? 

I noticed you guys just posted v3 of the patch, 
so it would be nice to try it out.

-- Pasi




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