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I don't think it's that they "left it running" like you would leave a backup app running... they literally left the entire disaster-recovery site up and running
by tgtweak 4y ago
I don't think it's that they "left it running" like you would leave a backup app running... they literally left the entire disaster-recovery site up and running and live. Cermak (referred to in the article as the "backup") is an entire datacenter, hosting a running copy of the exchange to be used in a failover scenario.
You'd have to have more than 1 person involved to forget that DR is still active when completing these failover exercises and tests off-hours.
- Kon-Peki 4y ago> Cermak (referred to in the article as the "backup") is an entire datacenter Well, they are a tenent at the Cermak data center. It’s a truly massive building with huge amounts of connectivity and colo opportunities. Probably also the only 100+ year old data center building on the US register of historic places, lol (it’s a former catalog printing facility, built to hold insanely heavy printing presses on 8 or 9 really tall floors, so it has no problems with densely-packed server racks)
- tgtweak 4y agoYeah my point is only that it's a full DR site, not a "backup" that was left running as the article pointed out (and as a lot of commenters are insinuating).
- Kon-Peki 4y agoAh, I see. Some quick internet searching shows that from time to time (rarely), NYSE operates the Cermak site as the primary site for at least part of their operations - for up to a week at a time. It seems to have multiple purposes - DR, customer software testing, etc.
- wallstprog 4y agoWell, you do that to make sure it works. At one of my previous jobs, we'd switch the primary and secondary datacenters every six months just to make sure we could.