SFN6122F vs SFN7002F

[cyruspy]

Any insights you could share regarding these two NICs?. The SFN6122F are reported to draw less power than X520-DA2, but next generation NICs (SFN7002F cost around the same)

 

[Jason Antes]

Personally, for the same cost I'd go next gen. I have a HP version of the SFN5162f and it runs pretty hot. I'll have to get a cooling fan to put on the heatsink if it doesn't wind up in one of the Proliant servers I have. I did find drivers for my card on Solarflare's site and it's the same download for the 5xxx, 6xxx, 7xxx, and 8xxx series cards. Worked to install to Windows 10.

At the bottome of the page. Solarflare

 

[cyruspy]

Yup, newer gen seems the way to go. Pulled the trigger on two of the SFN7002F (us$ 19 each). It seems to require a license to enable OpenOnLoad unluckily, on the other side hope to be able to play with DPDK.

I'm a little worried about your comment. What power consumption and temperatures are you seeing?

 

[altmind]

7122f, 8522 are crazy hot. easily reaching 95C and spamming linux console with thermal warnings. even without low-latency profile. these are not to be insalled in desktop cases - they need external airflow.

 

[altmind]

also, solarflares are not liked by snabb switch authors(they prefer mellanox and intel) - they are not really open, there's thick firmware layer that is not fully documented.
i remember a presentation on that, but cannot find it. but there's a list of "open" cards on snabbco/snabb

also... i've never heard about RDMA or iwarp support on solarflare. is there any?

 

[cyruspy]

I don't have use for RDMA. I'm aware of the closed drivers and high level interfaces.

I'm mostly concerned by the power consumption, hope it was a good selection. ‍

 

[Jason Antes]

At idle, mine is at 45C at the chip (I have an infrared thermometer). I haven't turned up my other 10Gb resources yet to test at full download/upload.