Amazon has migrated 75 petabytes of internal data – previously stored on nearly 7,500 Oracle databases – back to its own servers. On October 15, the tech giant announced that it will no longer use Oracle to store its databases and will instead use its in-house cloud-computing service, Amazon Web Services (AWS).

In an official company blog post, AWS Chief Evangelist Jeff Barr revealed that the database migration had been completed after several years of work: “I am happy to report that this database migration effort is now complete. Amazon’s consumer business just turned off its final Oracle database.”

Cost, performance and a reduction in administrative overheads were cited as the main motivations behind Amazon’s database migration

In total, more than 100 consumer services were involved in the migration effort, including Amazon Prime, Alexa and Kindle. Cost, performance and a reduction in administrative overheads were cited as the main motivations behind the move. Some third-party applications will remain connected to Oracle.

“Over the years, we realised that we were spending too much time managing and scaling thousands of legacy Oracle databases,” Barr wrote. “Instead of focusing on high-value differentiated work, our database administrators spent a lot of time simply keeping the lights on while transaction rates climbed and the overall amount of stored data mounted.”

Each team at the company was tasked with moving an Oracle database to an AWS alternative, such as Amazon DynamoDB, Amazon Aurora, Amazon Relational Database Service and Amazon Redshift. The company added that each team was given “the freedom to choose the purpose-built AWS database service that best fit their needs”.

Amazon’s move away from Oracle will come as a crushing blow to the cloud-computing firm. Amazon was a huge client for Oracle, and there are fears that its exit could lead to further departures elsewhere in the business.Related topics: Amazon, AWS, cloud storage, Oracle

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