magnawave
Joined 13 years ago
Joined 13 years ago
Of course its "for safety" but of course these breakers are famous for false tripping and causing expensive service calls.
anecdote: In my case, small server rack, on circuit a with an AFCI - since "bedroom". No problem.
Until washing machine on circuit b (no AFCI) runs, then trips circuit a's AFCI. Repeatedly, every time(debug on the breaker a returns ArcFault detection reason too). So... either a) don't wash your clothes b) don't have tech or c) quietly violate the code.
Indeed electrician quietly suggested(after a bunch of triage) I swap out the breaker with a normal one. But of course he wasn't allowed to do that... lol
Been here a decade - nary an issue since - so clearly the usual case of nuisance tripping and nothing more.
I suspect the switching power supplies were close to annoying the ACFI, and a beefy motor on an adjacent circuit was enough to push it over the line. Incidentally, swapped UPSes, power supplies(quality Seasonic), etc and nothing improved.
AWS's pricing model works kinda at their OMG eyewatering scale - aka all the custom hardware they design is highly cost optimized, but just doing custom hardware has a notable cost. This is easily covered by their scale, to make for their famous margins. [during their low scale times, they did use a good bit of HP/Dell, etc]
Oxide seems to be no different (super custom hardware) only major difference being the "in your datacenter" part. Since you own the cost of your datacenter, Oxide has to come in a lot cheaper to even compete with AWS, but how do you do that with low volume [and from the look of it not-cost optimized, but instead fairly tank-like] bespoke hardware? Feels like the pricing / customer fundamentals are going to be pretty rough here outside perhaps a few verticals.
Did figure out the double buffering stuff on my own though ;)
Seems so obvious, learn something new everyday, even if it would have been more useful, say maybe ~30yrs ago ;)
But I think I can say with sufficient knowledge, all things considered still, “way fewer than you might think”.
I’m quite sure not all this Cassandra capacity is just file/photo metadata storage either.
https://www.statesman.com/story/news/2021/02/16/texas-power-...
Maybe it’s time to rethink that. HaI has an interesting take on something similar: Japan https://www.youtube.com/watch?v=Mo88zA5nq4Q
Running your own grid seems cool Texas style, until you have a regional problem and have no where to turn.
The main reason folks dislike helm are 2 fold: 1) using string templating on a space formatted language is just messy and ugly for no good reason. If you don’t do anything terribly complicated it’s not too bad but quickly can be pretty fragile and unreadable. 2) golang(which I like generally) but the templating is messy and adds to the hard to read later problem
Personally find helm’s opportunity for code reuse to be restrictive and folks just end up cut and pasting a lot of declarations all over which is ... so terrible. But the first bullet above is pretty a fundamental design flaw.
At the (tens of) thousands of drives scale (and where you treat drives as cattle) having some extra checks and balances for what you write is an excellent idea. Even better is doing that in a distributed way so multiple machines make that same decision. Occasionally you will run into a drive where the firmware has jumped the shark or some such. (Or CPUs or memory or bus issue for that matter).
But generally speaking drives DO know when they are returning bad data and will error before they will do that. The odds are about as good as other forms of hardware errors that will eat your data.
The latest office for Mac looks quite a bit like the windows version now (for once) so it’s not too surprising.
So want to blame the family. But really Paul Allen’s fault here.
It’s a shame, was such a great museum.