Understanding our new hourly storage integrity checks

Silent data corruption is one of the least visible failure modes in storage — a bit flips on disk, nothing crashes, and you don't find out until you try to restore from a backup that's already corrupted. Our integrity checks exist specifically to catch that before it becomes your problem.

As of this release, Gold and Platinum storage tiers run checksum verification against stored objects every hour, up from the daily check we'd run previously. Bronze and Silver tiers remain on the daily schedule. If a checksum mismatch is detected, the affected object is automatically restored from a healthy replica and you're notified via the dashboard.

This doesn't replace the value of testing your own restores periodically, but it does mean the most common failure mode — corruption that goes undetected until you need the data — gets caught within the hour instead of within the day.