Content gap: backup durations #4920
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Blargian
commented
Dec 8, 2025
| Incremental backups will usually complete much faster than a full backup as less data is being backed up. | ||
| Restoring from an incremental backup will be slightly slower than restoring from a full backup as all incremental backups and the last full backup in the chain are included in the restore as explained above. | ||
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| In our testing, we have seen that smaller backups ~1 TB could take up to 10-15 minutes or longer to back up. |
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We should note these are VERY broad generalizations
Blargian
commented
Dec 8, 2025
| Backups less than 20 TB should complete within an hour, and backing up 50 TB of data should take about 2-3 hours. | ||
| Backups get economies of scale at larger sizes, and we have seen backups of up to 1 PB for some internal services complete in about 10 hours. | ||
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| Restore durations are about the same as the backup durations. |
dhtclk
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Dec 8, 2025
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LGTM provided assertions are double checked
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Summary
Adds a section on backup durations.
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