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So! We made the big move to www.lawenforcementcanada.ca the colocation Doudoune Canada Goose facility without too much pain and anguish. In fact, thanks to some precise planning and preparation we were pretty much back on line a day earlier than lawenforcementcanada.ca expected.
Were there any problems during the move? Nothing too crazy. Some expected confusion about the network/DNS configuration. A lot of expected struggle due to the frustrating non standards regarding rack rails. And one unexpected nuisance where the power strips mounted in the back of the rack were blocking the external sata ports on the jbod which holds georgem/paddym’s disks. However if we moved the strip, it would block other ports on other servers. It was a bit of a puzzle, eventually solved.
canada goose outlet france It feels great knowing our servers are on real backup power for the first time ever, and on a functional kvm, and behind a more rigid firewall that we control ourselves. As well, we no longer have that 100Mbit hardware limit in our way, so we can use the full gigabit of Hurricane Electric bandwidth. canada goose outlet france
Jeff and I predicted based on previous demand that we’d see, once things settled down, a bandwidth usage average of 150Mbits/second (as long as both multibeam and astropulse workunits were available). And in fact this is what we’re seeing, though we are still tuning some throttle mechanisms to make sure we don’t go much higher than that.
canada goose france Why not go higher? At least three reasons for now. First, we don’t really have the data or the ability to split workunits faster than that. Second, we eventually hope to move off Hurricane and get on the campus network (and wantonly grabbing all the bits we can for no clear scientific reason wouldn’t be setting a good example that we are in control of our needs/traffic). Third, and perhaps most importantly, it seems that our result storage server can’t handle much higher a load. Yes, that seems to be our big bottleneck at this point the ability of that server to write results to Canada Goose Pas Cher disk much faster than current demand. We expected as much. We’ll look into improving the disk i/o on that system soon. And we’ll see how we fare after tomorrow’s outage. canada goose france
canada goose Doudoune Canada Goose Pas Cher site officiel What’s next? We still have a couple more servers to bring down, perhaps next week, like the BOINC/CASPER web servers, and Eric’s GALFA machines. Meanwhile there’s lots of minor annoyances. Remember that a lot of our server issues stemmed from a crazy web of cross dependencies (mostly NFS). Well in advance we started to untangle that web to get these servers on different subnets, but you can imagine we missed some pieces, and the resulting fallout of a decade’s worth of scripts scattered around in a decade’s worth of random locations expecting a mount to exist and not getting it. Nothing remotely tragic, and we may very well be beyond all that at this point. canada goose site officiel
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canada goose outlet I should wish one bit of explanation though, regarding this statement. canada goose outlet
“Why not go higher? At least three reasons for now. First, we don’t really have the data or the ability to split workunits faster than that.”
canada goose femme It would appear that Canada Goose Pas Cher the ability of the splitters to keep up with demand and the improved distribution of work with the increased bandwidth has been doing rather well since coming back up. canada goose femme
‘Cat lives matter.’
Have made friends in this life.
Most were cats.
Are you saying that you are not able to acquire enough data from Arecibo to continue to distribute work at the improved rates?
fausse canada goose pas cher Right. our observation time is the bottleneck in this case. When we are able to use the telescope we can record at the rates we desire, and we are easily able to shuttle all the data back to UCB on the drives we have. fausse canada goose pas cher
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Are you saying that you are not able to acquire enough data from Arecibo to continue to distribute work at the improved rates.