switch cfg.Name {
	case storageclass.STANDARD, storageclass.RRS:
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, errTierReservedName), r.URL)
		return
	}

	// Refresh from the disk in case we had missed notifications about edits from peers.
	if err := globalTierConfigMgr.Reload(ctx, objAPI); err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	}
	return nil
}

// DiscoveryDoc - parses the output from openid-configuration
// for example https://accounts.google.com/.well-known/openid-configuration
type DiscoveryDoc struct {
	Issuer                           string   `json:"issuer,omitempty"`
	AuthEndpoint                     string   `json:"authorization_endpoint,omitempty"`
	TokenEndpoint                    string   `json:"token_endpoint,omitempty"`

	cpu              = "cpu_total_seconds"

	expiryPendingTasks           MetricName = "expiry_pending_tasks"
	expiryMissedTasks            MetricName = "expiry_missed_tasks"
	expiryMissedFreeVersions     MetricName = "expiry_missed_freeversions"
	expiryMissedTierJournalTasks MetricName = "expiry_missed_tierjournal_tasks"
	expiryNumWorkers             MetricName = "expiry_num_workers"
	transitionPendingTasks       MetricName = "transition_pending_tasks"

)

// DiscoveryDoc - parses the output from openid-configuration
// for example http://localhost:8080/auth/realms/minio/.well-known/openid-configuration
type DiscoveryDoc struct {
	Issuer                           string   `json:"issuer,omitempty"`
	AuthEndpoint                     string   `json:"authorization_endpoint,omitempty"`
	TokenEndpoint                    string   `json:"token_endpoint,omitempty"`

	workers                atomic.Int32
}

// MissedTasks returns the number of ILM expiry tasks that were missed since
// there were no available workers.
func (e *expiryStats) MissedTasks() int64 {
	return e.missedExpiryTasks.Load()
}

// MissedFreeVersTasks returns the number of free version collection tasks that
// were missed since there were no available workers.
func (e *expiryStats) MissedFreeVersTasks() int64 {

### Allowed values for REDUCED_REDUNDANCY storage class

`REDUCED_REDUNDANCY` implies lesser parity than `STANDARD` class. So,`REDUCED_REDUNDANCY` parity drives should be

- Less than N/2, if `STANDARD` parity is not set.
- Less than `STANDARD` Parity, if it is set.

		// Expected to send an empty response in this case.
		{"test-bucket-list-object", "", "zen", "", 10, ListObjectsInfo{}, nil, true},
		// Marker being set to a value which is lesser than and all object names when sorted (37).
		// Expected to send all the objects in the bucket in this case.
		{"test-bucket-list-object", "", "Abc", "", 10, resultCases[14], nil, true},

		{bucketNames[1], "", "minio-object-1.txt", uploadIDs[2], "", 100, listMultipartResults[17], nil, true},
		// Test cases with multiple uploadID listing for a given object (Test number 31-32).
		// MaxKeys set to values lesser than the number of entries in the MultipartInfo.
		// IsTruncated is expected to be true.
		{bucketNames[1], "", "", "", "", 2, listMultipartResults[18], nil, true},

			}
			// Data exists on disk, remove the version from metadata.
			fi.Data = nil
		}

		// Reading data for small objects when
		// - object has not yet transitioned
		// - object size lesser than 128KiB
		// - object has maximum of 1 parts
		if fi.TransitionStatus == "" &&
			fi.DataDir != "" && fi.Size <= smallFileThreshold &&
			len(fi.Parts) == 1 {

| `minio_node_ilm_transition_pending_tasks`                    | Number of pending ILM transition tasks in the queue.                                                       |
| `minio_node_ilm_transition_missed_immediate_tasks`           | Number of missed immediate ILM transition tasks.                                                           |