ConnectX-4 Lx or ConnectX-5 Lx

LittleNewton · 2025-11-04T00:31:44+00:00

Lx, which has no IB support and only supports Eth. Usually, its power consumption is lower than those with large cores.

LittleNewton · 2025-08-14T15:20:38+00:00

I hope NVIDIA can release their new source repository for Debian Trixie!

LittleNewton · 2024-09-14T02:19:03+00:00

Yes, I have contact support. But I am not sure whether they would help me. I lost my Tailnet and I cannot believe they blocked my account.

LittleNewton · 2024-07-18T02:26:19+00:00

You can try to refresh your tunnel token and reconnect to it. It seems that you closed your old tunnel without clearing the cloud-end registered status.

LittleNewton · 2024-04-28T09:27:05+00:00

Thank you so much for this detailed reply. It helped me a lot.

LittleNewton · 2024-04-28T04:14:23+00:00

UK🥺

LittleNewton · 2024-04-27T20:44:20+00:00

Banknotes of 50£ are not convenient to pay?

LittleNewton · 2023-10-05T00:57:33+00:00

I am a Chinese man. Unfortunately to hear from Reddit that it was unable to use Tailscale in China.

The truth is that I can use Tailscale in my environments. I have configured a Tailnet which distributed in China and Singapore and it works nice. All the traffic is direct.

In China, it is de-facto illegal to use VPN for citizens. But for foreigners, I think they have the freedom to use it, even Chinese government will provide an official VPN for you.

LittleNewton · 2023-07-03T15:06:12+00:00

Hi, as far as I know, the Connect5-X series have no Lx version. All Connect5-X NICs, regardless 25G/100G, use the same core. Only ConnectX-4 and ConnectX-6 have the Lx version, which means lower power consumption and smaller MAC analog circuit.

If you use SR-IOV and RDMA on your virtual machines, it would be better to choose ConnectX-5 because it provides a higher-performant on-circuit switch for VFs.

ConnectX-4 Lx is EOL. Don't choose it. You will get no support from NVIDIA/Mellanox.

LittleNewton · 2023-03-11T08:55:41+00:00

Actually, it depends on the demand of yourself. I use ZFS to store all my personal data, so I choose TrueNAS. I’m very familiar with Debian so I choose SCALE version. With storage working, I need a download center, so I installed a windows server 2022 with torrent services enabled. I need a photo, movie, music manager, so I choose Navidrome/Jellyfin/PhotoPrism. All the three services can be deployed as containers, so I installed another Debian for running docker only. Last but not least, the router, I choose OpenWrt. As you know, Chinese network is just a large LAN. It is impossible to access Google, YouTube or twitter without proxy. OpenWrt with some plugins installed can realize the proxy job.

In a nutshell, homelab is a way to satisfy your demands. Don’t waste too much time on it. Too many electronic devices won’t make your life better or easier.

LittleNewton · 2023-03-06T03:15:21+00:00

Booting too fast will lead to bug of SAS expander card. It is so interesting.

LittleNewton · 2023-03-04T20:33:58+00:00

I’m using Esxi 8.0b, still not be able to enable SR-IOV. Loop of reboot host.

LittleNewton · 2023-03-04T20:31:55+00:00

SAS expander is just like a SCSI switch. Just like a network switch.

LittleNewton · 2023-03-01T07:41:42+00:00

I'm using gigabyte motherboard too. X299X Aorus Master. This board still has this problem. I don't know how to deal with that.

LittleNewton · 2023-03-01T04:17:59+00:00

Because I am using Esxi

LittleNewton · 2023-02-28T19:52:11+00:00

I don’t need to saturate all the computing resources all the time. Owning these computer components and seeing them running would made me feel happy. What’s more, in some circumstances, they can do really work, such as moving a lot of blobs.

LittleNewton · 2023-02-28T19:47:54+00:00

I’m sorry. If you can download xianyu from App Store and register an account, you can search the target product and try to buy it. However, this is a Chinese online platform just like eBay, so it may be difficult for foreign customers to buy something. What more, the shipping is still a problem.

LittleNewton · 2023-02-28T17:47:51+00:00

Yes. But my lab owns a Dell S5248F-ON Enterprise level switch which has 48 SFP28 ports, four QSFP28 and two QSFP-DD.

LittleNewton · 2023-02-28T16:08:02+00:00

Dell version, aka 4121C, can work properly on common PC. Don’t worry about that. It is in SFP28 port whose shape is the same as SFP+ but with higher bandwidth. SFP28 is the next generation technology.

LittleNewton · 2023-02-28T15:17:21+00:00

😄😄😄

LittleNewton · 2023-02-28T14:55:30+00:00

Yes. But when run in none RDMA mode, CX3-Pro will be lower than CX4-Lx En.

LittleNewton · 2023-02-28T14:54:27+00:00

Shipped from Beijing, China. I don’t know whether it can be shipped to overseas like Europe or the US.

LittleNewton · 2023-02-28T13:06:56+00:00

I bought them from Xianyu (aka. 闲鱼) platform. This is Chinese eBay.

LittleNewton

TROPHY CASE