backend8 min read
Restore That Took 9 Hours — Why You Need to Know Your RTO Before the Incident
The disk dies at 2 AM. You have backups. But the restore takes 9 hours because nobody tested it, the database is 800GB, the download from S3 is throttled, and pg_restore runs single-threaded by default. You could have restored in 45 minutes with the right setup.
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