text: When the HBA on the host scans for devices that are attached to it, the HBA discovers all of 
  the volumes that are mapped to its FC ports and their SCSI identifiers (SCSI LUN IDs). 
  
  For example, the first disk that is found is generally SCSI LUN 1. You can control the order in 
  which the HBA discovers volumes by assigning the SCSI LUN ID as required. If you do not 
  specify a SCSI LUN ID when mapping a volume to the host, the storage system automatically 
  assigns the next available SCSI LUN ID, based on any mappings that exist with that host. 
  
  Example 7-21 shows how to map volumes volume_B and volume_C to defined host Almaden by 
  using**mkvdiskhostmap**command. 
  
  Example 7-21 The mkvdiskhostmap command 
  
  IBM_Storwize:ITSO:superuser>mkvdiskhostmap -host Almaden volume_B 
  Virtual Disk to Host map, id [0], successfully created 
  IBM_Storwize:ITSO:superuser>mkvdiskhostmap -host Almaden volume_C 
  Virtual Disk to Host map, id [1], successfully created 