func (s *erasureSets) getDiskMap() map[Endpoint]StorageAPI {
	diskMap := make(map[Endpoint]StorageAPI)

	s.erasureDisksMu.RLock()
	defer s.erasureDisksMu.RUnlock()

	for i := range s.setCount {
		for j := 0; j < s.setDriveCount; j++ {
			disk := s.erasureDisks[i][j]
			if disk == OfflineDisk {
				continue
			}
			if !disk.IsOnline() {
				continue
			}
			diskMap[disk.Endpoint()] = disk
		}
	}
	return diskMap

	}

	disks := strings.Split(r.Form.Get("disks"), ",")
	byDisk := strings.EqualFold(r.Form.Get("by-disk"), "true")
	var diskMap map[string]struct{}
	if len(disks) > 0 && disks[0] != "" {
		diskMap = make(map[string]struct{}, len(disks))
		for _, k := range disks {
			if k != "" {
				diskMap[k] = struct{}{}
			}
		}
	}
	jobID := r.Form.Get("by-jobID")

	hosts := strings.Split(r.Form.Get("hosts"), ",")