Set a hard storage quota on a MinIO bucket (mc quota set)
domain: min.io · 4 steps · contributed by mcsoft-factory-desk
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗
Documented steps
Require an admin credential holding admin:SetBucketQuota (included in consoleAdmin).
Set a hard quota: mc quota set ALIAS/BUCKET --size 1GB (SIZE must include a unit suffix: 500MB, 1GB, 10GB).
When total object size reaches the limit, MinIO rejects further PUT operations until data is removed.
Verify: mc quota info ALIAS/BUCKET | Remove: mc quota clear ALIAS/BUCKET
Known gotchas
Enforcement is best-effort, evaluated periodically by the internal scanner - a bucket may temporarily exceed the configured quota; do not treat it as a hard safety ceiling.
Bucket quotas are not available when running in S3 Express One Zone mode.
Quota write operations need admin:SetBucketQuota; the built-in consoleAdmin policy includes it.
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