m.Set(usageBucketVersionsCount, float64(usage.VersionsCount), "bucket", bucket)
		m.Set(usageBucketDeleteMarkersCount, float64(usage.DeleteMarkersCount), "bucket", bucket)

		if quota != nil && quota.Quota > 0 {
			m.Set(usageBucketQuotaTotalBytes, float64(quota.Quota), "bucket", bucket)
		}

		for k, v := range usage.ObjectSizesHistogram {
			m.Set(usageBucketObjectSizeDistribution, float64(v), "range", k, "bucket", bucket)

	files := []usageTestFile{
		{name: "bucket/rootfile", size: 10000},
		{name: "bucket/rootfile2", size: 10000},
		{name: "bucket/dir1/d1file", size: 2000},
		{name: "bucket/dir2/d2file", size: 300},
		{name: "bucket/dir1/dira/dafile", size: 100000},
		{name: "bucket/dir1/dira/dbfile", size: 200000},
		{name: "bucket/dir1/dira/dirasub/dcfile", size: 1000000},
		{name: "bucket/dir1/dira/dirasub/sublevel3/dccccfile", size: 10},
	}

```
notify_webhook        publish bucket notifications to webhook endpoints
notify_amqp           publish bucket notifications to AMQP endpoints
notify_kafka          publish bucket notifications to Kafka endpoints
notify_mqtt           publish bucket notifications to MQTT endpoints
notify_nats           publish bucket notifications to NATS endpoints

		// of the client provided context and add the bucket
		// key, if not present.
		kmsCtx := kms.Context{}
		for k, v := range cryptoCtx {
			kmsCtx[k] = v
		}
		if _, ok := kmsCtx[bucket]; !ok {
			kmsCtx[bucket] = path.Join(bucket, object)
		}
		newKey, err := GlobalKMS.GenerateKey(ctx, &kms.GenerateKeyRequest{
			Name:           newKeyID,
			AssociatedData: kmsCtx,
		})
		if err != nil {

		return nil
	}
	return dst
}

// bucketsUsageInfo returns the buckets usage info as a map, with
// key as bucket name
func (d *dataUsageCache) bucketsUsageInfo(buckets []BucketInfo) map[string]BucketUsageInfo {
	dst := make(map[string]BucketUsageInfo, len(buckets))
	for _, bucket := range buckets {
		e := d.find(bucket.Name)
		if e == nil {
			continue
		}
		flat := d.flatten(*e)

	testCases := []struct {
		bucket string
		result bool
	}{
		// MinIO meta bucket.
		{
			bucket: minioMetaBucket,
			result: true,
		},
		// MinIO meta bucket.
		{
			bucket: minioMetaMultipartBucket,
			result: true,
		},
		// MinIO meta bucket.
		{
			bucket: minioMetaTmpBucket,
			result: true,
		},
		// Normal bucket
		{
			bucket: "mybucket",

	// Bucket operations.
	MakeBucket(ctx context.Context, bucket string, opts MakeBucketOptions) error
	GetBucketInfo(ctx context.Context, bucket string, opts BucketOptions) (bucketInfo BucketInfo, err error)
	ListBuckets(ctx context.Context, opts BucketOptions) (buckets []BucketInfo, err error)
	DeleteBucket(ctx context.Context, bucket string, opts DeleteBucketOptions) error

	peerRESTMethodDevNull               = "/devnull"
	peerRESTMethodNetperf               = "/netperf"
	peerRESTMethodGetReplicationMRF     = "/getreplicationmrf"
)

const (
	peerRESTBucket          = "bucket"
	peerRESTBuckets         = "buckets"
	peerRESTUser            = "user"
	peerRESTGroup           = "group"
	peerRESTUserTemp        = "user-temp"
	peerRESTPolicy          = "policy"
	peerRESTUserOrGroup     = "user-or-group"

		dirQuorum: 1,
		objQuorum: 1,
		bucket:    bucket,
		strict:    false, // Allow less strict matching.
	}

	path := baseDirFromPrefix(prefix)
	filterPrefix := strings.Trim(strings.TrimPrefix(prefix, path), slashSeparator)
	if path == prefix {
		filterPrefix = ""
	}

	lopts := listPathRawOptions{
		disks:          disks,
		fallbackDisks:  fallbackDisks,
		bucket:         bucket,
		path:           path,

Lifecycle transition functionality provided in [bucket lifecycle guide](https://github.com/minio/minio/master/docs/bucket/lifecycle/README.md) allows tiering of content from MinIO object store to public clouds or other MinIO clusters.

Transition tiers can be added to MinIO using `mc admin tier add` command to associate a `gcs`, `s3` or `azure` bucket or prefix path on a bucket to the tier name.