iamFilesListing := iamOS.cachedIAMListing.Load().(map[string][]string)
		listKey := policyDBSTSUsersListKey
		if isGroup {
			listKey = policyDBGroupsListKey
		}
		for _, item := range iamFilesListing[listKey] {
			stsUserName := strings.TrimSuffix(item, ".json")
			entityKeysInStorage.Add(stsUserName)
		}
	} else {
		// For non-iam object store, we copy the mapping keys from the cache.
		cache := sys.store.rlock()

	}

	cache.Info.updates = updates

	dataUsageInfo, err := scanDataFolder(ctx, disks, s.drivePath, cache, func(item scannerItem) (sizeSummary, error) {
		// Look for `xl.meta/xl.json' at the leaf.
		if !strings.HasSuffix(item.Path, SlashSeparator+xlStorageFormatFile) &&
			!strings.HasSuffix(item.Path, SlashSeparator+xlStorageFormatFileV1) {
			// if no xl.meta/xl.json found, skip the file.
			return sizeSummary{}, errSkipFile

		HTTPStatusCode: http.StatusServiceUnavailable,
	},
	ErrSiteReplicationIAMError: {
		Code:           "XMinioSiteReplicationIAMError",
		Description:    "Error while replicating an IAM item",
		HTTPStatusCode: http.StatusServiceUnavailable,
	},
	ErrSiteReplicationConfigMissing: {
		Code:           "XMinioSiteReplicationConfigMissingError",

			}
		}
		return true
	})

	if iamOS, ok := store.IAMStorageAPI.(*IAMObjectStore); ok {
		for item := range listIAMConfigItems(context.Background(), iamOS.objAPI, iamConfigPrefix+SlashSeparator+policyDBSTSUsersListKey) {
			user := strings.TrimSuffix(item.Item, ".json")
			if userPredicate != nil && !userPredicate(user) {
				continue
			}

			var mappedPolicy MappedPolicy

When the _access_ format is used, MinIO appends events to a list using [RPUSH](https://redis.io/commands/rpush). Each item in the list is a JSON encoded list with two items, where the first item is a timestamp string, and the second item is a JSON object containing event data about the operation that happened in the bucket. No entries appended to the list are updated or deleted by MinIO in this format.