Ancestors

Written by Hanno Rein on 2025-01-29 at 02:51

Many thanks to my (former) students @zyrxvo, Dang, Pejvak and Nick, who helped disassemble 16 nodes of the NIAGARA supercomputer today. Everything is now at UTSC and once we've put it back together, my group will have its own small compute cluster with 640 cores.

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Written by Hanno Rein on 2025-01-31 at 22:08

So far I'm not having much luck in getting the nodes up and running. In short, I'm not sure how to access the Lenovo XClarity Controller (XCC). By default it is supposed to try DHCP first and then fallback to a static IP if that fails. I do see some traffic on the ethernet port, including a DHCP request, but strangely the DHCP offers are not accepted. The default static IP also doesn't work. So maybe the default behaviour was changed? It's not clear to me how to reset the XCC to factory defaults

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Written by Hanno Rein on 2025-01-31 at 22:16

The System Management Module (SMM) has its own ethernet port. I think I've successfully reset the SMM to factory defaults. However, the SMM's network port is completely silent - no traffic at all. Which I think is the default. There are instructions in the manual on how to enable the SMM network, but those require me to reach the XCC. So I'm a bit stuck. 🤷‍♂️

Any hints would be appreciated! 😉

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Written by Hanno Rein on 2025-01-31 at 22:28

Side note: The servers use 240V. I didn't want to wait for the university to put a 240V circuit in at work and I don't have an easily accessible 240V socket at home either. So I built this MacGyver-style contraption which combines two 120V outlets on different circuits into one 240V. And yes, this is definitely not up to code for many different reasons and you should absolutely not try this at home yourself.

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Written by Hanno Rein on 2025-02-04 at 02:27

Finally getting somewhere!

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Toot

Written by Hanno Rein on 2025-02-04 at 23:40

I've put everything in the rack today.

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Descendants