3 ms·

Indeed - They are loud. ;) You can slow the fan speed down some and that makes a difference, but they still produce a lot of fan noise: If you listen in this

Indeed - They are loud. ;) You can slow the fan speed down some and that makes a difference, but they still produce a lot of fan noise: If you listen in this video of my homelab: https://www.youtube.com/watch?v=-b3t37SIyBs https://www.youtube.com/watch?v=-b3t37SIyBs I would say that more than half of the total 'volume' is attributed to the three Arista switches. They are quite a bit louder than the Ciscos, and of course much louder than the Ubiquiti. I certainly would not have one of these next to me in a work area. On the other hand, they are the cheapest way to get 40G! With DAC cables it can be really inexpensive.

justinclift 2y ago
Thanks, that rules out the Arista option then. :) I'm currently looking into the HP 5900AF-48XG-4QSFP+ (JC772A) switches, as they seem to be a good price/performance mix on Ebay. :) My homelab is currently just a small setup with 4 boxes using 40GbE and a few others with 10GbE. Only one of them really needs the 40GbE though, the other's could be made 10GbE and not care. ;) Random example of this switch: https://www.networktigers.com/products/jc772a-hpe-5900af-48xg-4qsfp-switch https://www.networktigers.com/products/jc772a-hpe-5900af-48x... Can't seem to find any info about noise levels though. :(
- justinclift 2y ago
  Found a data sheet with the acoustic info (https://s4u.com.ua/assets/files/hp%205900.pdf https://s4u.com.ua/assets/files/hp%205900.pdf). 65.7-70.6 dB. That's clearly not going to be workable. Damn.
  - sponaugle 2y ago
    Yea, a lot of them are pretty high flow due to the density of heat generated. Most are consuming 100-200watts, and that has to all come out as heat!
  - sponaugle 2y ago
    So - you could consider the Mikrotik - CRS326-24S+2Q+RM It has 2 40G, and it is very quiet (I have one)
    - justinclift 2y ago
      Thanks, that seems like the right kind of thing. :)
justinclift 2y ago
Nifty homelab by the way. :)

justinclift 2y ago

Thanks, that rules out the Arista option then. :) I'm currently looking into the HP 5900AF-48XG-4QSFP+ (JC772A) switches, as they seem to be a good price/performance mix on Ebay. :) My homelab is currently just a small setup with 4 boxes using 40GbE and a few others with 10GbE. Only one of them really needs the 40GbE though, the other's could be made 10GbE and not care. ;) Random example of this switch: https://www.networktigers.com/products/jc772a-hpe-5900af-48xg-4qsfp-switch https://www.networktigers.com/products/jc772a-hpe-5900af-48x... Can't seem to find any info about noise levels though. :(

justinclift 2y ago
Found a data sheet with the acoustic info (https://s4u.com.ua/assets/files/hp%205900.pdf https://s4u.com.ua/assets/files/hp%205900.pdf). 65.7-70.6 dB. That's clearly not going to be workable. Damn.
- sponaugle 2y ago
  Yea, a lot of them are pretty high flow due to the density of heat generated. Most are consuming 100-200watts, and that has to all come out as heat!
- sponaugle 2y ago
  So - you could consider the Mikrotik - CRS326-24S+2Q+RM It has 2 40G, and it is very quiet (I have one)
  - justinclift 2y ago
    Thanks, that seems like the right kind of thing. :)

justinclift 2y ago

Nifty homelab by the way. :)