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Brokerage Firm Upgrades from Disaster Recovery to Automatic Failover and Recovery with Sizzling-Hot-Takeover (SZT)

Situation

A brokerage firm located in the Midwestern U.S. provides trading services and trading suggestions to customers through its brokers. It operates a home-grown application running on a redundant pair of HPE NonStop Servers using HPE Shadowbase Active/Passive Disaster Recovery for backup in the event of a primary node failure.

Problem

The firm’s application was mission-critical, yet it was running in a Disaster Recovery (DR) architecture. In a DR architecture (with any backup solution), the IT team can only react after an outage occurs to begin the recovery process. This delay increased the risk for an extended recovery period, since management would need to authorize the failover, slowing the application’s recovery and exacerbating the outage. Additionally, to even perform this recovery process, they would need to assemble the team, potentially while team members were unavailable and difficult-to-reach in remote locations.

For these reasons, the brokerage needed to improve upon its DR architecture, removing the possibility of human error for a rapid recovery in the event of an outage.

Solution

In the “Final HPE Shadowbase Sizzling-Hot-Takeover Architecture” above, brokers are connected to a broker application that routes data to the “active” NonStop Server for processing security buy/sell orders. This NonStop Server is connected to another NonStop Server via Shadowbase bi-directional replication in an active/almost-active SZT architecture. The application on the “Standby” node is up and running, and waiting for requests (it is not processing live transactions). If the active node fails, the network will switch the requests to the hot Standby node, which will process the broker requests.

Additional Notes About this Architecture

Outcomes

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Further Reading

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