How Does Absorb LMS Back Up My Data?

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Applies to: Starter, Pro, Plus, & Enterprise Plans

As part of our recent move to Amazon Web Services (AWS) we've implemented a number of new backup/disaster recovery strategies. Here are some of the more important ones:

  • Multiple Availability Zones: Our LMS is now replicated across three different availability zones (two in Europe) in the US-East region (EU-West in Europe). Although these zones are located in the same general geographic area, each one is logically separated and completely independent of the others. These zones serve two purposes: requests are distributed across the zones to balance the load on each server, and if one zone should fail requests will immediately be redirected to the other zones.
  • Multiple Database Backups: We have three levels of backups for our database:
    • Every 15 minutes: A log of any changes made is passed to our standby database. If our primary database server should fail, all connections can be routed to our standby database instead, allowing for a quick transition.
    • Every night: A differential backup is taken that includes all changes made to the database that day.
    • Every week: A full database backup is taken.
  • Nightly Course Data Backups: All course data is backed up nightly to Amazon's S3 distributed storage service.
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