Re: Network hardware recommendations

[Scott Laird <scott@xxxxxxxxxxx>]

I've done this two ways in the past.  Either I'll give each machine an Infiniband network link and a 1000baseT link and use the Infiniband one as the private network for Ceph, or I'll throw an Infiniband card into a PC and run something like Vyatta/VyOS on it and make it a router, so IP traffic can get out of the IB network.  Of course, those have both been for test labs.  YMMV.

On Tue Oct 07 2014 at 11:05:23 AM Massimiliano Cuttini <max@xxxxxxxxxxxxx> wrote:

Hi Christian,

When you say "10 gig infiniband", do you mean QDRx4 Infiniband (usually
flogged as 40Gb/s even though it is 32Gb/s, but who's counting), which
tends to be the same basic hardware as the 10Gb/s Ethernet offerings from
Mellanox?

A brand new 18 port switch of that caliber will only cost about 180$ per
port, too.

I investigate about infiniband but i didn't found affordable prices at all
Moreover how do you connect your legacy node servers to your brand new storages if you have Infiniband only on storages & switches?
Is there any mixed switch that allow you both to connect with Infiniband and Ethernet?

If there is, please send specs because i cannot find just by google it.

Thanks,
Max

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