MongoDB Backup Strategies

Create a Logical Backup

Use mongodump to create a backup of a sample MongoDB database and verify the backup files.

Expected output: Backup files stored in the specified directory containing BSON data.

Hint: Use the --db and --out options with mongodump.

Plan a Backup Schedule

Design a backup schedule for a MongoDB deployment with daily full backups and hourly incremental backups.

Expected output: A documented backup schedule outlining timing and backup types.

Hint: Consider RPO and RTO requirements and system load.

Logical backups export data at the document level using mongodump, making them portable but slower for large datasets. Physical backups copy raw database files, often via snapshots, enabling faster backups but requiring consistent database states.

Using filesystem snapshots or incremental backups can reduce downtime. Scheduling backups during low-traffic periods and leveraging replica sets to offload backup operations also help maintain availability.

Regular testing ensures backups are valid and restorations work correctly, preventing surprises during actual disaster recovery scenarios.