Case Study: A1 Austria Migrates 21TB Elasticsearch to OpenSearch with A1 Digital

A1 Austria migrates 21TB to OpenSearch in one week with A1 Digital

A1 Austria, a major telecommunications provider, faced significant challenges with its on-premises Elasticsearch deployment, including rising licensing costs, management complexity, and performance issues that hindered its data analytics capabilities. To address this, they partnered with vendor A1 Digital, opting for their OpenSearch by Exoscale service, powered by Aiven, to achieve a more scalable and cost-effective solution.

The solution implemented by A1 Digital involved a seamless migration of a massive 21TB, 30-node cluster to managed OpenSearch in just one week. This transition resulted in dramatically improved performance, with data queries now running twice as fast, and enabled the creation of valuable dashboards in days instead of weeks. The cluster is now managed by just two engineers, freeing internal resources for innovation and catalyzing further cloud adoption across the parent A1 Group.

A1 Austria