matt-p

4 ms·

31.
Show HN: Interactive component to map fibre breaks (OTDR)(react-networks-lib.rackout.net)
9 points by matt-p 2mo ago|0 comments
32.
by matt-p 2mo ago
I'm not saying this is bad, or any worse than other marketplaces, but essentially a direct contract would typically have these 'protections' too. How do you enforce 'you can get a refund in xx days if you're unhappy
33.
by matt-p 2mo ago
Yep, so basically the buyer has to trust the seller is honest and/or doesn't make a mistake (uploading the data for the wrong GPUs or something).
34.
by matt-p 2mo ago
This is super cool! I agree the non-fungible nature of a H100 (or whatever) is a massive challenge. How do you actually verify usage/thermal history on these? Hours run and thermal violations aren't stored on the card IIRC, only E
35.
by matt-p 2mo ago
Nothing, except that it's expensive to do on the carrier side and completely unsupported on any cheap CPE I know of. Aside from that is not a terrible idea, aside from being over engineered when you could just be using DHCP.
36.
by matt-p 2mo ago
Cool work!
37.
by matt-p 3mo ago
Yeah I agree, I understand a weekly reset in some cases could be over the top but if they did a 5-hour reset and took 20% off your weekly usage that would offset the additional cost/inconvenience for most users.
38.
by matt-p 3mo ago
Rural is complicated. You have more distance between subscribers, but it's much more likely to just be grass which you can mole plough into for about a tenth of the cost per metre of digging up sidewalk. I don't know about New Yor
39.
by matt-p 3mo ago
So why don't you have ISPs that focus on one state or one geographical area. We have that all over in Europe.
40.
by matt-p 4mo ago
Yes very true, 2X is with the most modern 10G chipsets only.
41.
by matt-p 4mo ago
I kind of a agree, but it's not going to happen for a long long time. The practicalities are just a nightmare. How do I power an access point with fiber? Ok we add an AC wall socket to the ceiling but now we need a 'brick' to
42.
by matt-p 4mo ago
M3 ultra is obviously 1-2 generations behind and new the studio is expected 'any day now. Even if this was M4 Ultra it would still be ~comparable to any EPYC system in bandwidth, but get to use the GPU for compute so potentially fast
43.
by matt-p 4mo ago
I agree, but maybe not all slots need to be filled with blanks, maybe leaving one or two truly empty slots is OK.
44.
by matt-p 4mo ago
Yeah kind of, I think a 24 channels DDR5 works out approx 1TB/s, but the cost is astronomical, a M5 studio would probably beat that performance for around half the cost. You also get to use the GPU/NPU cores of the mac vs CPU only
45.
by matt-p 4mo ago
A very good idea, the Mac Pro also had a rack mount option didn't it? That would be the kind of thing you could sell as many as you could make.
46.
by matt-p 4mo ago
I don't think it's needs 'call us' just a separate SKU, I mean if they called it Xserve Ultra and it was just a studio in a 1u format with dual PSUs and extra RAM, it would fly off the shelves.
47.
by matt-p 4mo ago
It uses 128b/132b encoding so 10Gb/s USB ≈ 9.69Gb/s you do then have USB framing overhead but it's probably around 2% on typical 1500B ethernet frames. So all in you are losing probably 5% or so to overhead. I am of the
48.
by matt-p 4mo ago
You would use a heat exchanger normally anyway. Forcing the outside (DH) to be slow would get you that, but there is cost in having low flow in that HXs are less efficient at the far end and you can transfer less heat in the same pipework
49.
by matt-p 4mo ago
Yeah, I mean it does depend on the pipework and season/geography for sure. I was simplifying a bit in that a part of the 'distribution' losses are in the plate heat exchanger as you convert from the "IT" loop to the
50.
by matt-p 4mo ago
Definitely!
51.
by matt-p 4mo ago
In essence you can't really because slower flow rate makes the heat transfer less efficient. You'd be halfing the flow rate in that example.
52.
by matt-p 4mo ago
are you manually maintaining the list of 'OSA censored' sites? Sounds great, just I'm lazy :')
53.
by matt-p 4mo ago
Yes, but the heat will still likely need boosting by about a further 10 degrees either at the source or end user. DC inlet is 45°C, outlet is 55°C assuming a 10°C ΔT. By the time that's travelled 500m–1km through pipework you've l
54.
by matt-p 4mo ago
Yeah, this is part of the issue to be honest. You'd need outdoor air to be below ~37°C to guarantee 45°C water outlet temperature. In most locations you still need cooling towers or compressors some of the time, so you still have to bu
55.
by matt-p 4mo ago
Many smaller providers have reasonable price/features but you need to dig in a comparison site or just generally to find them I guess. Like e.g serversearcher.com serverhunter etc
56.
by matt-p 4mo ago
there's a few like https://lowendtalk.com https://serversearcher.com
57.
by matt-p 4mo ago
Seriously social housing is not teachers and nurses, you'd know this if you'd lived in or amongst it. Let's assume for a moment it is teachers and nurses. You think that they shouldn't be allowed a sallery that enables t
58.
by matt-p 4mo ago
Isn't it part of the problem that these are two sides of the same coin, yet owned by different people.
59.
by matt-p 4mo ago
That's fine that should stay as social housing then. It's probably even better this way as it's still possible to place people who for example absolutely have to be in kensington or islington there.
60.
by matt-p 4mo ago
I assume you would build the new social hosing, move folks over then you'll be able to sell the zone 1 houses they came out of and so on and so forth.

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