code: func listAzureDiskPath(io ioHandler) []string {
  	azureDiskPath := "/dev/disk/azure/"
  	var azureDiskList []string
  	if dirs, err := io.ReadDir(azureDiskPath); err == nil {
  		for _, f := range dirs {
  			name := f.Name()
  			diskPath := azureDiskPath + name
  			if link, linkErr := io.Readlink(diskPath); linkErr == nil {
  				sd := link[(libstrings.LastIndex(link, "/") + 1):]
  				azureDiskList = append(azureDiskList, sd)
  			}
  		}
  	}
  	klog.V(12).Infof("Azure sys disks paths: %v", azureDiskList)
  	return azureDiskList
  }
docs: // exclude those used by azure as resource and OS root in /dev/disk/azure