#What is the Maximum througput on 2 x 100Gb ports card?

1 messages · Page 1 of 1 (latest)

hoary grove
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For X1148 or X1146 NIC's, it has 2 ports, 100Gb on each port, will it have the maximum of 100Gb or 200Gb throughput?
Backend switches can support 2x100Gb LACP group.

earnest pagoda
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Look up the specs for the connect x6 card. That is the x1148. The x1146 is a chelsio card

earnest pagoda
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the x1146 is only supported on the c/a800 as a standard network card. I presume that is your platform if you are asking.

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On this platform the x1148 is ONLY supported with twinax and if you need optics then you must use the x1146.

If you are trying to do nfs/rdma, this requires RoCE which is only supported on the x1148 (Mellanox card)

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The reasoning is heat. The 800 is a hot platform so to speak and the Mellanox cards run hot to start. Using optics in those cards significantly heats the system where things may/will warp.

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The spec sheet for the Mellanox card indicates 200Gb of total bandwidth

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Looks like the x1146 may be the Chelsio T6 card which specs out to 128Gb bandwidth due to PCI Gen3 limitations

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With that said, I’ve never ever seen anyone come close to saturating any 100g card on a Netapp in both directions

peak osprey
earnest pagoda
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Don’t confuse the cards and LACP. A single connection may never see more than the bandwidth of a single link but the question was the bandwidth of the cards themselves which I supplied answers for

urban fog
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yeah, LACP is just a band-aid and in practice never doubles the performance unless you have a very favorable environment

hoary grove
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One more follow-up.

I know 100Gb should be enough for client connections in general speaking. But, what procedure (ACTIVE IQ UM, or Commands ) should I perform to determine how much throughput we are currently using ?

weak dragon
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Harvest and Grafana are exactly what you want

hoary grove
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Unfortunately, we don't have Harvest and Grafana implemented yet.

Are therer any other ways to determine?