text: **8.2 Host clusters**
  
  IBM Storwize V7000 software supports host clusters starting with V7.7.1 and later. The host 
  cluster allows a user to create a group of hosts to form a cluster. A cluster is treated as a 
  single entity, which allows multiple hosts to access the same volumes. 
  
  Volumes that are mapped to a host cluster are assigned to all members of the host cluster 
  with the same SCSI ID. 
  
  A typical user case is to define a host cluster that contains all of the WWPNs belonging to the 
  hosts participating in a host operating system-based cluster, such as IBM PowerHA®, and 
  Microsoft Cluster Server (MSCS). 
  
  The following new commands were added to deal with host clusters: 
  
  (cid:2) lshostcluster 
  (cid:2) lshostclustermember 
  (cid:2) lshostclustervolumemap 
  (cid:2) mkhost (modified to put host in a host cluster on creation) 
  (cid:2) rmhostclustermember 
  (cid:2) rmhostcluster 
  (cid:2) rmvolumehostclustermap 