For the migration of the entire infrastructure, the AWS SMS tool was used, which made it possible to make a copy of each of the on-premise installed servers on different AMI’s on AWS. These AMI’s were reliable and consistent images of Fund Grube´s systems. The images were created and updated daily, in blocks and without the users being affected. This way, only one last synchronization had to be done on the day of migration.
Thanks to the SMS this synchronization was very fast since it is incremental synchronizations. Once the corresponding environment migration was finished, only a few more had to be done to have the system fully migrated. After thorough preparation, the downtime of each system was less than two hours and in some cases one hour.
Another important point of the project for Fund Grube was the reduction of backup storage costs. This objective was achieved thanks to the use of S3 containers to store backup copies of SAP databases. AWS S3 service provides unbeatable durability of 99.999999999% (11 nines) and 99.99% availability at a cost ten times lower than the on-premise alternative that was being used before.