All 7 Redis Backup & Disaster Recovery questions
More in Redis Backup & Disaster Recovery
How do you create a manual backup of your Redis data at a specific point in time? What is a reasonable backup schedule and retention policy to establish for a production Redis instance? How would you set up a disaster recovery plan for Redis that accounts for an entire data center or region becoming unavailable? How do managed cloud Redis services typically handle backup and disaster recovery differently than a self hosted Redis instance? How would you design and test a complete disaster recovery drill for a Redis based application to verify your team can actually recover successfully under pressure? What considerations are important when backing up a very large Redis dataset without significantly impacting production performance during the backup process?
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How do you restore a Redis instance from a previously saved RDB backup file?

Beginner

Answer

You stop the Redis server, replace its current data file with the backup RDB file you want to restore, ensuring it is placed in the directory and with the filename Redis expects based on its configuration, and then start the Redis server again, which will automatically load the data from that restored file.
systemctl stop redis
cp /backups/redis_backup_20260907.rdb /var/lib/redis/dump.rdb
systemctl start redis
Real-world example A company recovers their Redis instance after a hardware failure by stopping the service, replacing the data file with their most recent backup, and restarting Redis, quickly restoring their application's cached data.

Common follow-ups: What happens if the restored RDB file is from a significantly older backup than expected?;Do you need to restore both RDB and AOF files, or just one?

Persistence (RDB/AOF);Redis Architecture & Installation
All 7 Redis Backup & Disaster Recovery questions