if config == nil {
		return true
	}
	return len(config.ListTiers()) == 0
}

// TierType returns the type of tier
func (config *TierConfigMgr) TierType(name string) string {
	config.RLock()
	defer config.RUnlock()

	cfg, ok := config.Tiers[name]
	if !ok {
		return "internal"
	}
	return cfg.Type.String()
}

// ListTiers lists remote tiers configured in this deployment.

		for i, fi := range fivs.Versions {
			objInfos[i] = fi.ToObjectInfo(item.bucket, item.objectPath(), versioned)
		}
		sizeS := sizeSummary{}
		for _, tier := range globalTierConfigMgr.ListTiers() {
			if sizeS.tiers == nil {
				sizeS.tiers = make(map[string]tierStats)
			}
			sizeS.tiers[tier.Name] = tierStats{}
		}
		if sizeS.tiers != nil {
			sizeS.tiers[storageclass.STANDARD] = tierStats{}