Date: Thu, 26 May 2016 11:44:32 -0600 From: John Nielsen <lists@jnielsen.net> To: Justin Clift <justin@postgresql.org> Cc: Grzegorz Junka <list1@gjunka.com>, freebsd-infiniband@freebsd.org Subject: Re: InfiniBand supported hw Message-ID: <05BB7487-B000-4800-88BD-EC7DEC508160@jnielsen.net> In-Reply-To: <A69E3E1D-002C-47CA-A898-0ABF67F64D5B@postgresql.org> References: <9f3323d3-fc01-c1e7-8a93-3132a61c9235@gjunka.com> <A69E3E1D-002C-47CA-A898-0ABF67F64D5B@postgresql.org>
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On May 26, 2016, at 11:07 AM, Justin Clift <justin@postgresql.org> = wrote: > On 26 May 2016, at 14:00, Grzegorz Junka <list1@gjunka.com> wrote: >> Is 500EX-D supported on FreeBSD? I read that it's a Voltaire version = and it is the same as Mellanox ConnectX, which supposed to be supported. >=20 > Yep, they should work. You may need to flash them with their Mellanox = equivalent > firmware, but I'm not sure. (doing that flash isn't very hard btw) >=20 >> Also, most InfiniBand cards provide two ports. When connecting two = computers together (IPoIB) is it possible to use both ports to double = the speed? >=20 > Not sure, as I've not needed to personally. None of my storage (or = other uses) > even fills one DDR port. Yet. :) >=20 > I *think* the answer to that is yes, It depends on what you mean by "use both ports." You can of course use = both ports at the same time, but if you're envisioning something like an = IPoIB version of an Ethernet LAGG I don't think that is supported. If you are using the IB for storage protocols, then active/active = multipathing is one way to utilize the full bandwidth of multiple ports. >> Lastly, is NFS RDMA properly supported on FreeBSD? >=20 > Again not sure. Other people here would likely know. :)
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