[one-users] infiniband

[christopher barry]

So, what about your testing made you decide to go with IPoIB rather than
iSER?


On Fri, 2012-07-13 at 14:52 -0400, Shankhadeep Shome wrote:
> Hi Chris
> 
> 
> iSER will work seamlessly as long as you run it on the hosts, it just
> requires a compatible iSER target. TGTD should work, although the iser
> target I tested with was a zfs appliance. I've never tested a Linux
> iSER target solution. One commercially supported solution you can try
> out is Mellanox's VSA, which presents block storage over iSER. You can
> try the configuration with open-nebula lvm drivers. I think those
> drivers have gotten a lot more robust in the last few weeks as well.
> 
> 
> http://www.mellanox.com/content/pages.php?pg=products_dyn&product_family=105&menu_section=69
> 
> 
> Shank
> 
> On Tue, Jul 10, 2012 at 10:08 PM, Chris Barry <cbarry at rjmetrics.com>
> wrote:
>         @Shankhadeep
>         
>         
>         Hi. We chatted a while back about IB, and you explained your
>         IPoIB setup, and indeed you released your whole solution to
>         the community. That was a very cool thing to do.
>         
>         
>         I'm wondering how you arrived at your solution, because I
>         wonder if I'm barking up a tree you've already determined has
>         no cats... :)
>         
>         
>         Was using IPoIB the initial goal, or did you try other methods
>         before settling on this one? I ask because the tack I'm taking
>         is to try to use iSER. After reading a lot more about how ONE
>         works, it *seems* like it should be pretty easy (knock on
>         wood). It seems like with tgtd (which luckily has iSER support
>         built-in), it should essentially be transparent, as long as
>         the initiator in the host is iSER aware as well. It almost
>         seems like the iscsi method out of the box should 'just work'.
>         Or, am I dreaming? :)
>         Did you experiment along this vein?
>         
>         
>         It would be greatly simplify the network configuration as well
>         if it did work, because there would be no need for the NAT
>         rules anymore - the guest would use OVS in the host for their
>         networking.
>         
>         
>         Anyway, I'm going to try that (unless you've already tried
>         tried it to no avail) first, and I'll let you know how it
>         goes.
>         
>         
>         
>         
>         
>         
>         Regards,
>         Christopher Barry
>         
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>         
> 
>