mmt

15 ms·

91.
by mmt 8y ago
> (no racks, PDUs, busbars, fibre drop, network switch, KVM, circuit-breaker, rack&stack, rack anti-tip bracing, artistic cabling, tech support) Anyone paying more than a negligible amount (per server) for any of these is needlessly
92.
by mmt 8y ago
> cost of $267,512.88 per year (as calculated from another comment in the thread), I assume their profit margins for the first year are nearly non-existent NB that this was calculated based on the "All Up Front" pricing, so, fo
93.
by mmt 8y ago
The source is still up at https://github.com/lukegb/yourdatafitsinram Sadly, it just used 6TB as a fixed cutoff, so keeping it up-to-date would be a manual task. Today, only a few years later, that number is 24TB. (Eve
94.
by mmt 8y ago
> $802,538.64 for the 3-year term. I wonder how that compares to building your own on-premise host with that much RAM This was discussed a couple days ago in a different thread [1], when 4TB was the EC2 limit. $400k for the current-gen (
95.
by mmt 8y ago
> I sincerely question the value of a managed wifi system I'm not suggesting that there's necessarily value in "managed", but your parent comment was about the Ubiquiti product being overkill, which is a much broader
96.
by mmt 8y ago
It's not even past tense, in that it still happens. A web search for "airbag theft" should reveal that it's still an issue. Presumably it's only less of an issue because the cost of the part has come down from $1k o
97.
by mmt 8y ago
It does seem like a glaring omission, especially at the modest database sizes they used. Even something like PG with the Citus extension to compare parallelism would have been relevant. EDIT: Although another comment suggests that the data
98.
by mmt 8y ago
> Hire somebody. This is easier said than done, even if they're convinced it's worth the money. Not only are startup founders faced with the usual problems associated with hiring competent technical people (ironically a problem
99.
by mmt 8y ago
I've found that the threshold depends not so much on number of APs but on number of simultaneously active users/devices (arguably the ratio of those per AP, rather than total). An office of 30 people sharing 3 APs will encounter p
100.
by mmt 8y ago
> refrigerator which uses many times as much power and definitely has 100% uptime. Except that the making-cold mechanism of fridges have nowhere near a 100% duty-cycle. You probably wouldn't notice if it didn't even meet two &q
101.
by mmt 8y ago
That's a poor analogy, since flatscreens aren't state-mandated (nor have a mandated value-increasing component). A better analogy would be catalytic converters, which increase the loss when a car is stolen, since there's a si
102.
by mmt 8y ago
And that's just unnecessary friction, which is a problem of politics, not technology. I do recall a time as recently as 4 years ago where it was difficult to find, for example, rack-mountable servers that could hold a large number of t
103.
by mmt 8y ago
This is only applicable if they can actually sell very small increments of their time for that amount of money, which I strongly suspect they can't. There have been numerous threads here on HN about the difficulties of finding full-p
104.
by mmt 8y ago
It will only matter if the infrastructure is a large part of their cost of technical operations (as opposed to labor) or, more importantly, overall cost of operations. In another thread on here (unfortunately I can't recall which), an
105.
by mmt 8y ago
> But if you start taking into account all the logistic, additional skills, people and processes needed to maintain a rack in a DC, You've mostly described what one pays a datacenter provider, plus hiring someone who has experience
106.
by mmt 8y ago
And if considering elastic capacity, do you include the cost of the engineering effort required to take advantage of it? A similar question applies to any other dynamic cost-reduction measure, such as spot instances. I recall reading an ann
107.
by mmt 8y ago
> keeping it running 24/7 involves substantial costs So does using a cloud service. It's not actually obvious, conceptually, but very little of the admin overhead has to do with the "own hardware" aspect of running it
108.
by mmt 8y ago
> have to erode eventually That's not borne out by history, especially in the face of "enterprise" hardware, software, and support, which, in many large companies, is being replaced by cloud (at lower cost!). For smaller c
109.
by mmt 8y ago
If you mean "will be" rather than "is", I'd agree. Otherwise, it's just a kind of reductio ad absurdum to stretch the definition of "robot" to include any machine. The key differentiating factors (a
110.
by mmt 8y ago
> I think you underestimate the middle management "everyone is doing it so it must be better" argument. Not at all. Although I didn't state it outright (in this thread), I'm convinced that this, rather than cost, is
111.
by mmt 8y ago
> I do agree that, a lot of my time can be taken up with explaining why I don't want to replace a file server with a Cassandra cluster(yes really). Adding the complexity of a DBMS (and a non-standard one at that) on top of a distrib
112.
by mmt 8y ago
Right, which is why the current generation is limited to 12TiB for 8S systems, compared to 24TiB for the generation you quoted. Even previous gen, if 12TiB main memory is your goal (NUMA concerns aside), it's probably worth going for t
113.
by mmt 8y ago
I don't think that's true, in the usual sense of the term. When a replica is used as a read slave, that introduces problems with (strong) consistency, that definitely starts to resemble any other distributed system. Adding autom
114.
by mmt 8y ago
I'm not sure anyone would ever actually have only one machine, without a failover option, and failing over had better not bring down the whole system.
115.
by mmt 8y ago
That's a previous-gen CPU system. Current is: https://www.supermicro.com/products/system/7U/7089/SYS-7089P... Server itself is might only be $25k but those 224 cores could add another $90k, so the t
116.
by mmt 8y ago
If you're willing to go back a generation on CPU (and merely 192 cores), you can get 24TB. https://www.supermicro.com/products/system/7U/7088/SYS-7088B...
117.
by mmt 8y ago
Those people are both correct and incorrect. Neither costs a fixed, single amount. Both are ranges that depend on the competence of the practitioner. For example, it's cheaper to use a reserved EC2 instance for 1 year than just on dema
118.
by mmt 8y ago
> I don't quite understand that statement. I didn't make a single statement, but I also made what is more of an accusation (i.e. stating the opinion of others I disagree with) than my own assertion. > Personally I like spend
119.
by mmt 8y ago
> hiring in some infrastructure people Part of the problem is that these, at least the ones making the fundamental decisions, are likely to be software people, with not enough ops/sysadmin experience. > who actually know how to
120.
by mmt 8y ago
I think you meant it cites https://www.kalzumeus.com/2010/06/17/falsehoods-programmers-...

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