No, you can still provide caching on the users' behalf. This is what TTL is for. This wouldn't turn DNS resolvers into non-caching proxies. Sure, sometimes the geo map of the CDN changes, but it wouldn't be smart to do that for every request. Again, TTL can be used to tailor the cache refresh rate which will affect the number of updates a CDN can do to the geo-coded responses.
To do anycast DNS responses, you need to know the source of the request. Everyone using Google PublicDNS always gets the same response since it always looks like it's coming from 8.8.8.8. Sending the class C of the user asking for the query along with the request itself would allow anycast DNS responders to do a better job responding with the right "nearest" IP.
Yup, phone numbers are stupid. Organizing communication by user@domain is a much better way to to do it. This makes it easy for people to have multiple, but easy to remember identities. I have my user@work.com and my personal handle@personal.net. People who don't have a personal.net can simply use a service like gmail.com. Wouldn't it be nice if you could just remember someone's gmail, hotmail, yahoo, whatever address and that was your way to contact them via email, chat, or voice/video?
That's a really great idea. Would you mind sharing your skills at setting up the custom MSI? I have been doing Linux stuff for so long I have a hard time dealing with Windows stuff. I could probably figure it out but it would be great to have an easy to build MSI image.
Back when I was in high school I worked as a tech at a used computer store. A mac LCII came in for trade in and it was fairly yellow from smoke. I opened it up and it was completely caked on the inside. I'm not sure how the cooling fan survived that much gummy smoke dust. I closed the lid and refused to accept it for trade in. The sales drones weren't happy, but the store manager agreed that we wouldn't take it.
Nasty stuff. I wouldn't want to work on computers who have been around smokers. Some people don't realize how disgusting the greasy brown goo is that covers everything around them where they smoke.
Google publishes how they calculate it. It's pretty simple. here is the link. They also post updates quarterly with each datacenter listed separately, although not which one is located where.
Other companies (Yahoo? MS? I forget) are doing similar things with PUE nearing 1.1 by only running the datacenter for peak capacity handling and the just shut it down when it's too hot out to run evaporative cooling.
Either way, using raised floor for cold air handling is not the way you get better than 1.5 PEU.
Wow really? That's the best examples of datacenters you can find? Not a single mention of PUE at all. Lots of fancy talk and equipment but no real numbers.
Cisco's datacenter consumes 10MW. If it has a PUE of 1.50 (good for that kind of design) that's only about 6.6MW for racks.
If this were a Google datacenter with a PUE of 1.22 that's 8.2MW for racks.
If cisco can maintain a PUE of 1.5 for that design, they're wasting 1.6MW of power. That's about 13670MWh per year or at $0.08/KWh is about 1.1 millon dollars a year.
Yup, that was done at the University of Minnesota CS department a few years ago. They had to take A/C offline in the middle of the winter for a few days and the datacenter room was down 3 stories below ground. We ended up propping open 2 emergency exit stairs on 2 ends of the building, covering the two hallways with plastic tarps to prevent air flow. The the doors at either end of the datacenter were propped open and a gigantic 6' fan was turned on. It pulled a ton of cold air down one stairwell and pushed it up through the other.
Worked great except for the grad students who had to sit next to the datacenter doors where it was now freezing cold 24/7 for security.
Many good comments, but nobody is asking what PUE a datacenter gets. Bad PUE turns into lower rack deliverable power and more expensive power when you do get it. I would have a hard time picking a datacenter that didn't have tight closed loop hot isle cooling.
That would work well with Squeezebox server and the squeezeslave client. The audio quality and sync wouldn't be that great but depend on the setup it could be good enough.
The Squeezebox Server software is also open source. Many people have written plugins for it. From simple things like IR Blaster for doing remote amplifier control to Inguz room correction DSP software.
Yes, and you are a libertarian, not a Libertarian. The political party has only a tiny amount to do with the fundamental idea of the simple totalitarian/libertarian scale.
Yup, I'm really disappointed that consumer PCs are still lacking ECC ram. The support for it is in all the chipsets, but it adds $5 to the cost of the machines. Oh well.
I'm really glad you're out of the debt cycle. Serious props for digging yourself out of it.
There are places that will give you auto credit. Credit unions (easy to get with many jobs) are a good way. Dealerships are hurting like crazy and will give car loans in order to get inventory off their lot.
The other option is if you have a trustworthy friend, get a "loan" from them to get the cash down on a car.
You could also get a crappy, but serviceable for 6 months car until you get your credit score back in order.
Unfortunately, you're a bit incorrect about this. If you look around at these other posts, the issue is that even tho you dial any XXX-XXX-XXXX number in the US like it's local, AT&T and Google still both pay long-distance fees in the case of these rural lines. AT&T isn't allowed by federal rules to block these gouging calls, but since Google Voice is an overlay network basically they can. AT&T is just mad because they can't block the calls too.
As was said by someone else on this post, if net neutrality existed on phone networks, this wouldn't be an issue.
I don't know anyone using the term "top-flight" for sysadmins either. Mostly they're just bad-ass motherfuckers.:)
But while we're using the term, all the "top-flight" "systems analysts" I've met couldn't sysadmin their way out of a wet paper bag. From what I can tell "analyst" is another word for "failing upwards".
I know many "top-flight" sysadmins and systems-focused software engineers. None of them call themselves "analysts".
That's because you're asking in online forums to people who are nearly anonymous and complete strangers. Of course all you're going to get is complete jackasses. You'll get that for just about anything.
You know what people I know do when they have problems with Linux, Windows, MacOS, power tools, cars, bicycles, AV equipment? They call me, the person who knows how to troubleshoot just about anything.
Ask for help from people in person, where they might have sociological pressure to NOT be a jackass. Atleast to your face.
Actually, it's fairly easy to do. I've seen NAT routers can be tricked using UPNP into opening ports. Of course if you don't have UPNP, or have it turned off, there's no issue, but there are a number of ways to get around hiding behind NAT (and other firewalls) these days.
I took a safety/emergency driving course at the local police academy. I thought it was great, really easy. I was amused at the other students who could barely back their car up around cones without smacking most of them. There were a few good drivers in my group, most of them came from northern US states or Canada where you have to learn about ice on the road.
I wish the driving exams in the US were much more strict. I know someone who had a legit driver's license in florida. There's a loophole in the system where you can get one without ever having to take a road test. This person literally can't drive (and thankfully doesn't) but holds a valid license to do so.
Mostly I blame the complete lack of public transit and urban planning in the US. Too many people "NEED" to drive to get around so the rules are such that everyone needs a license. If alternate modes of transport (bus/train/walking) were easier to do things like get to work or stores there would be less need for people to have cars when they have no skill to use them.
It doesn't matter that SATA can do 300MB/s. That's just the interface line rate. Last I did benchmarks of 1T drives (seagate ES.2) they topped out at around 100MB/s. Drives still have a long way to go before they saturate the SATA bus. The only way that happens is if you are using port multipliers to reduce the number of host channels.
Uhh, are you dense? Distributed storage doesn't mean you use someone else's servers. The software mentioned above is for internal use. Hadoop is used by yahoo for their internal cloud, and Lustre is used by a number of scientific labs that do military work.
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No, you can still provide caching on the users' behalf. This is what TTL is for. This wouldn't turn DNS resolvers into non-caching proxies. Sure, sometimes the geo map of the CDN changes, but it wouldn't be smart to do that for every request. Again, TTL can be used to tailor the cache refresh rate which will affect the number of updates a CDN can do to the geo-coded responses.
To do anycast DNS responses, you need to know the source of the request. Everyone using Google PublicDNS always gets the same response since it always looks like it's coming from 8.8.8.8. Sending the class C of the user asking for the query along with the request itself would allow anycast DNS responders to do a better job responding with the right "nearest" IP.
Yup, phone numbers are stupid. Organizing communication by user@domain is a much better way to to do it. This makes it easy for people to have multiple, but easy to remember identities. I have my user@work.com and my personal handle@personal.net. People who don't have a personal.net can simply use a service like gmail.com. Wouldn't it be nice if you could just remember someone's gmail, hotmail, yahoo, whatever address and that was your way to contact them via email, chat, or voice/video?
That's a really great idea. Would you mind sharing your skills at setting up the custom MSI? I have been doing Linux stuff for so long I have a hard time dealing with Windows stuff. I could probably figure it out but it would be great to have an easy to build MSI image.
Back when I was in high school I worked as a tech at a used computer store. A mac LCII came in for trade in and it was fairly yellow from smoke. I opened it up and it was completely caked on the inside. I'm not sure how the cooling fan survived that much gummy smoke dust. I closed the lid and refused to accept it for trade in. The sales drones weren't happy, but the store manager agreed that we wouldn't take it.
Nasty stuff. I wouldn't want to work on computers who have been around smokers. Some people don't realize how disgusting the greasy brown goo is that covers everything around them where they smoke.
Google publishes how they calculate it. It's pretty simple. here is the link. They also post updates quarterly with each datacenter listed separately, although not which one is located where.
Other companies (Yahoo? MS? I forget) are doing similar things with PUE nearing 1.1 by only running the datacenter for peak capacity handling and the just shut it down when it's too hot out to run evaporative cooling.
Either way, using raised floor for cold air handling is not the way you get better than 1.5 PEU.
Wow really? That's the best examples of datacenters you can find? Not a single mention of PUE at all. Lots of fancy talk and equipment but no real numbers.
Cisco's datacenter consumes 10MW. If it has a PUE of 1.50 (good for that kind of design) that's only about 6.6MW for racks.
If this were a Google datacenter with a PUE of 1.22 that's 8.2MW for racks.
If cisco can maintain a PUE of 1.5 for that design, they're wasting 1.6MW of power. That's about 13670MWh per year or at $0.08/KWh is about 1.1 millon dollars a year.
Yup, that was done at the University of Minnesota CS department a few years ago. They had to take A/C offline in the middle of the winter for a few days and the datacenter room was down 3 stories below ground. We ended up propping open 2 emergency exit stairs on 2 ends of the building, covering the two hallways with plastic tarps to prevent air flow. The the doors at either end of the datacenter were propped open and a gigantic 6' fan was turned on. It pulled a ton of cold air down one stairwell and pushed it up through the other.
Worked great except for the grad students who had to sit next to the datacenter doors where it was now freezing cold 24/7 for security.
Many good comments, but nobody is asking what PUE a datacenter gets. Bad PUE turns into lower rack deliverable power and more expensive power when you do get it. I would have a hard time picking a datacenter that didn't have tight closed loop hot isle cooling.
Wow, really, providing a global address book for a company is hard? Your network is pretty fucked up.
That would work well with Squeezebox server and the squeezeslave client. The audio quality and sync wouldn't be that great but depend on the setup it could be good enough.
The Squeezebox Server software is also open source. Many people have written plugins for it. From simple things like IR Blaster for doing remote amplifier control to Inguz room correction DSP software.
Yes, and you are a libertarian, not a Libertarian. The political party has only a tiny amount to do with the fundamental idea of the simple totalitarian/libertarian scale.
It's already getting there with the rollout of LTE on most of the major US networks.
Yup, I'm really disappointed that consumer PCs are still lacking ECC ram. The support for it is in all the chipsets, but it adds $5 to the cost of the machines. Oh well.
I'm really glad you're out of the debt cycle. Serious props for digging yourself out of it.
There are places that will give you auto credit. Credit unions (easy to get with many jobs) are a good way. Dealerships are hurting like crazy and will give car loans in order to get inventory off their lot.
The other option is if you have a trustworthy friend, get a "loan" from them to get the cash down on a car.
You could also get a crappy, but serviceable for 6 months car until you get your credit score back in order.
Unfortunately, you're a bit incorrect about this. If you look around at these other posts, the issue is that even tho you dial any XXX-XXX-XXXX number in the US like it's local, AT&T and Google still both pay long-distance fees in the case of these rural lines. AT&T isn't allowed by federal rules to block these gouging calls, but since Google Voice is an overlay network basically they can. AT&T is just mad because they can't block the calls too.
As was said by someone else on this post, if net neutrality existed on phone networks, this wouldn't be an issue.
I don't know anyone using the term "top-flight" for sysadmins either. Mostly they're just bad-ass motherfuckers. :)
But while we're using the term, all the "top-flight" "systems analysts" I've met couldn't sysadmin their way out of a wet paper bag. From what I can tell "analyst" is another word for "failing upwards".
I know many "top-flight" sysadmins and systems-focused software engineers. None of them call themselves "analysts".
So I take it you're in favor of leaded gasoline and are opposed to catalytic converters.
Since it can in no way change his crop, then yes he is being an idiot.
In fact, organic gardening is idiotic and dangerous to begin with. So he is all around an idiot.
What evidence do you have to support your statement that "organic gardening is idiotic and dangerous"?
That's because you're asking in online forums to people who are nearly anonymous and complete strangers. Of course all you're going to get is complete jackasses. You'll get that for just about anything.
You know what people I know do when they have problems with Linux, Windows, MacOS, power tools, cars, bicycles, AV equipment? They call me, the person who knows how to troubleshoot just about anything.
Ask for help from people in person, where they might have sociological pressure to NOT be a jackass. Atleast to your face.
Actually, it's fairly easy to do. I've seen NAT routers can be tricked using UPNP into opening ports. Of course if you don't have UPNP, or have it turned off, there's no issue, but there are a number of ways to get around hiding behind NAT (and other firewalls) these days.
I took a safety/emergency driving course at the local police academy. I thought it was great, really easy. I was amused at the other students who could barely back their car up around cones without smacking most of them. There were a few good drivers in my group, most of them came from northern US states or Canada where you have to learn about ice on the road.
I wish the driving exams in the US were much more strict. I know someone who had a legit driver's license in florida. There's a loophole in the system where you can get one without ever having to take a road test. This person literally can't drive (and thankfully doesn't) but holds a valid license to do so.
Mostly I blame the complete lack of public transit and urban planning in the US. Too many people "NEED" to drive to get around so the rules are such that everyone needs a license. If alternate modes of transport (bus/train/walking) were easier to do things like get to work or stores there would be less need for people to have cars when they have no skill to use them.
It doesn't matter that SATA can do 300MB/s. That's just the interface line rate. Last I did benchmarks of 1T drives (seagate ES.2) they topped out at around 100MB/s. Drives still have a long way to go before they saturate the SATA bus. The only way that happens is if you are using port multipliers to reduce the number of host channels.
Uhh, are you dense? Distributed storage doesn't mean you use someone else's servers. The software mentioned above is for internal use. Hadoop is used by yahoo for their internal cloud, and Lustre is used by a number of scientific labs that do military work.