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Recently, I was working with a client’s systems administration team, and they were agonizing over timing a new application upgrade. They knew the upgrade was going to take hours (we’re talking Windows here, not Unix, sigh!), and did not want to interrupt business operations. They planned on a midnight upgrade, which would necessitate overtime, and require project managers, QA stage, and others to work overnight as well. “Wait, you’re on the cloud, right? Take advantage of cloud infrastructure and do your upgrade with zero downtime,” I remarked. Well, apparently this was novel to them, so I outlined a couple approaches my teams have taken inRead More →