The backup concept provides for the 3-2-1 backup rule, where the numerical values stand for
- 3 copies:
- at least every 24 hours a snapshot of the entire storage (attachments) and the database as SSD snapshot
- every 24 hours an incremental backup per tenant (all attachments incl. database)
- every 24 h an offsite backup of all tenant backups from point 2
- 2 media:
- Snapshots/RAID on HDD/SDD
- Tenantbackups in GCP storage buckets (cloud storage)
- 1 external location:
- Copy 1 + 2 are at Google and therefore in Frankfurt.
- Copy 3 is stored encrypted at WASABI in long-term S3 storage
- RTO: 12 Std., RPO: 15 Std.
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