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Stack Overflow: How we upgrade a live data center

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Re: Stack Overflow: How we upgrade a live data center

#61
post #41

Earlier quoted context omitted.

> I can't resist reminding you that 1 command from a sysadmin routing traffic to the wrong network was the cause of the last major outage there :) If you're going to bring that up, I can't resist reminding you of that time you had poor sysadmins running up and down stairs with buckets of fuel to keep your servers running[1]. > I've always said this: the cloud isn't a good fit for us; do what works for you. There are…

As Kyle says, we were helping our sister company Fog Creek keep their servers online (as well as other people in that facility like Squarespace) because we cared. Our traffic was not being served from that data center and in fact we shut down most of our servers during that to conserve generator fuel. Our traffic was flowing just fine from Oregon. A decision Kyle and I made the night before when concluding they would…

intetionally or not demeaning a good company

It's sad that you can't handle a snarky comment (right or wrong) that was given in response to your own snarky comment. If you can't handle being poked and it pisses you off, don't poke others.

Also, you seem particularly offended that your altruism is being maligned, when you're also complaining that the GP was unaware that the action was altruistic in the first place (???).

Re: Stack Overflow: How we upgrade a live data center

#62
post #25

That's a really nice cabling job. I've inherited 2 DC's with just-awful-enough cabling that I'd be exceptionally happy to set up new racks again and migrate, just to sort the bloody cables out Sigh, don't think it's gonna happen. As a customer of Dell, it was interesting to see someone elses insight on managing a dell farm. So neat! I am mildly envious! ;)

Thanks! We honestly do this for us and my mild cabling OCD, but if we can help anyone by sharing the details then it's worth it.

You've had us looking for your model of label-maker :)

Re: Stack Overflow: How we upgrade a live data center

#63
post #13

Woah, the datacenter you guys moved to is across the street from my apartment. Just a heads up, I considered it for a project myself but ruled it out because... well this is the back corner of that building: http://40.media.tumblr.com/tumblr_lqnh988WRS1qzpdb2o4_1280.j...

It's odd to see bollards and speed bumps in a swimming pool that big.

here's the reverse angle in street view: https://www.google.com/maps/@40.718382,-74.042041,3a,75y,355...

Re: Stack Overflow: How we upgrade a live data center

#66
Most companies depreciate hardware across 3 years

Can somebody explain why exactly? Was there ever some large scale research with the outcome this was somehow the cheapest? Or is it a mere byproduct of the consumption-based society? I'm asking because I'ved used lots of different types of hardware (both computing and non-computing) and >90% lasted well over 3 years. It seems a waste of time/money to get rid of ot after 3 years? Which matches with SE's findings: they choose 4 years. Still not that much, but already 'better'

Re: Stack Overflow: How we upgrade a live data center

#67
post #66

Most companies depreciate hardware across 3 years Can somebody explain why exactly? Was there ever some large scale research with the outcome this was somehow the cheapest? Or is it a mere byproduct of the consumption-based society? I'm asking because I'ved used lots of different types of hardware (both computing and non-computing) and >90% lasted well over 3 years. It seems a waste of time/money to get rid of ot aft…

Most leasing contracts are on a 3 year basis.

Re: Stack Overflow: How we upgrade a live data center

#68
post #66

Most companies depreciate hardware across 3 years Can somebody explain why exactly? Was there ever some large scale research with the outcome this was somehow the cheapest? Or is it a mere byproduct of the consumption-based society? I'm asking because I'ved used lots of different types of hardware (both computing and non-computing) and >90% lasted well over 3 years. It seems a waste of time/money to get rid of ot aft…

Most leasing contracts are on a 3 year basis.

Ok yes, but why 3?

Re: Stack Overflow: How we upgrade a live data center

#69
post #66

Most companies depreciate hardware across 3 years Can somebody explain why exactly? Was there ever some large scale research with the outcome this was somehow the cheapest? Or is it a mere byproduct of the consumption-based society? I'm asking because I'ved used lots of different types of hardware (both computing and non-computing) and >90% lasted well over 3 years. It seems a waste of time/money to get rid of ot aft…

The default accountability rules say 3 years (or maybe "minimum 3 years"). Therefore older hardware is assumed to have no value, unless someone takes the time to think about it.

Re: Stack Overflow: How we upgrade a live data center

#70

Earlier quoted context omitted.

It normally would, except the base IIS page is a proper 200 to all requests. The load balancer removes all servers having issues - from HAProxy's point of view things were dandy. As always, we are looking how to adjust our deployment process to prevent it from happening in the future.

Everyone I know big enough to run a load balancer has had this happen. The next step in evolution is to have your script look for specific text on a page, which will change 24 months later and have all the perfectly good servers pulled out of rotation.

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