Persistence And Backups¶

What must be persistent¶

• PostgreSQL data
• Redis data when used for queued durability in your deployment model
• API uploads volume
• device-side local storage during studies

Backup priorities¶

1. PostgreSQL
2. uploaded files
3. deployment configuration and secrets inventory

Practical advice¶

• test restore procedures, not only backups
• do not wipe study devices before dashboard verification
• monitor pending and failed queues after load tests