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The Nasdaq Challenge: Move an Entire Network with no Downtime

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Prasad Parvathaneni already had a tough job – maintain the stock quote service for Nasdaq with no downtime – when it got even harder. He needed to move an entire network of apps and databases to an upgraded network segment, with no downtime.

Prasad and his team schemed on a number of approached. Could they use floating IPs? Could they migrate half the devices one day and the other half the next, maintaining service in between?

The biggest hurdle was how to migrate the databases without impacting the app. Ultimately, they sought a way to break the application dependence on the database – to have a layer of technology between them so they could move them independently of each other.

Enter ScaleArc. With ScaleArc’s database load balancing software, Prasad and his team now had that software buffer they were looking for – a way to separate the systems so downtime at the database tier didn’t have to take down the apps.

ScaleArc made the network move faster and free of any downtime. And post network move, ScaleArc continues to enable zero downtime for this critical quote-serving application for Nasdaq.

You can read more about the case study and hear Prasad describe the project in this video.

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