Power is how expensive? At one of the largest carrier hotels/biggest IX points in north america, I've calculated the cost of power to be around 23 cents/kWh... That's with the building providing multiply redundant 2 megawatt generators, diverse city power feeds, and taking into account the building's cost for air conditioning.
Based on these calculations for a high density, high power colo cabinet one 208V 30A circuit = 6240W You can use about 85% of that safely, so you've got 5304W load possible if you use 5304W for a month 24x7 you've got 3946kWh consumed in a month $900/month for that electrical circuit divided by 3946 = 22.8 cents per kWh so uhm... a 15W Intel NUC sized thing running solid for a month is 11.16 kWh consumed in a month, or about $2.50 of electricity. Does it really make a difference to use a raspberry pi? On Tue, Mar 22, 2016 at 6:26 PM, Graham McIntire <gra...@vntx.net> wrote: > I haven't had any of them die on me from SD card write failure yet, though > I've been worried about it. I keep spares of everything in case of failure, > but they're cheap enough you could set up a huge VRRP cluster or something > to eliminate any down time. Power is expensive at the building with our > fiber, and by using Pis I'm able to keep the air conditioner off and save a > good chunk of money every month. > > On Wed, Mar 2, 2016 at 6:14 PM, Paul Stewart <p...@paulstewart.org> wrote: > >> I like Raspberry Pi units … but I wouldn’t think of using them for >> servers … YMMV .. I think of them more as “useful toys”…. For servers I >> need redundant disc (minimum two Intel SSD w/hardware RAID1), redundant >> power etc… could be blades or physical servers. >> >> >> >> Now one could argue that for something like DNS, you have redundancy via >> the application too … I completely get that .. >> >> >> >> *From:* Af [mailto:af-boun...@afmug.com] *On Behalf Of *Matt >> *Sent:* Wednesday, March 2, 2016 12:34 PM >> >> *To:* af@afmug.com >> *Subject:* Re: [AFMUG] PowerDNS vs Bind for Resolver >> >> >> >> Was thinking about moving some servers to Raspberry Pi. I like they take >> up very little rack space and power and with quad cores are pretty fast and >> now they support Centos. Have you had any issues with flash dying after >> too many writes? >> >> >> >> >> >> >> >> On Sun, Feb 28, 2016 at 8:46 PM, Graham McIntire <gra...@vntx.net> wrote: >> >> I run unbound on 2 raspberry Pi 2's, and they consistently outperform any >> other internal or external server I've set up. >> >> >> >> On Sun, Feb 28, 2016 at 8:05 PM, Paul Stewart <p...@paulstewart.org> >> wrote: >> >> +100 on that one … >> >> >> >> *From:* Af [mailto:af-boun...@afmug.com] *On Behalf Of *Mike Hammett >> *Sent:* Sunday, February 28, 2016 11:32 AM >> *To:* af@afmug.com >> *Subject:* Re: [AFMUG] PowerDNS vs Bind for Resolver >> >> >> >> Unbound. >> >> >> >> ----- >> Mike Hammett >> Intelligent Computing Solutions <http://www.ics-il.com/> >> <https://www.facebook.com/ICSIL> >> <https://plus.google.com/+IntelligentComputingSolutionsDeKalb> >> <https://www.linkedin.com/company/intelligent-computing-solutions> >> <https://twitter.com/ICSIL> >> Midwest Internet Exchange <http://www.midwest-ix.com/> >> <https://www.facebook.com/mdwestix> >> <https://www.linkedin.com/company/midwest-internet-exchange> >> <https://twitter.com/mdwestix> >> The Brothers WISP <http://www.thebrotherswisp.com/> >> <https://www.facebook.com/thebrotherswisp> >> >> >> <https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg> >> ------------------------------ >> >> *From: *"Matt" <matt.mailingli...@gmail.com> >> *To: *af@afmug.com >> *Sent: *Sunday, February 28, 2016 10:29:19 AM >> *Subject: *[AFMUG] PowerDNS vs Bind for Resolver >> >> For a simple non-authorative resolver running on Centos do most prefer >> Bind or PowerDNS? >> >> >> >> >> >> >> > >
