text: (cid:2) Decide whether you must plan for more than one site. For multi-site deployment, review 
  the extra configuration requirements that are imposed. 
  
  (cid:2) Define the number of clusters and the number of enclosures (1 - 4) for each cluster. The 
  number of necessary I/O Groups depends on the overall performance requirements and 
  the number of hosts you plan to attach. 
  
  (cid:2) Decide whether you are going to use N_Port ID Virtualization (NPIV). If you plan to use 
  NPIV, review the extra configuration requirements that are imposed. 
  
  (cid:2) Design the SAN according to the requirement for high availability (HA) and best 
  
  performance. Consider the total number of ports and the bandwidth that is needed at each 
  link, especially Inter-Switch Links (ISLs). Consider ISL trunking for improved performance. 
  Separately collect requirements for Fibre Channel and IP-based storage network. 
  
  **Note:**Check and carefully count the required ports. Separately note the ports that are 
  dedicated for extended links. You might need more long-wave gigabit interface 
  converters (GBICs), especially in an enhanced stretched cluster (ESC) or HyperSwap 
  environment. 
  
  (cid:2) Define a naming convention for the Storwize V7000 clusters, nodes, hosts, and storage 
  objects. 
  
  (cid:2) Define the Storwize V7000 service Internet Protocol (IP) addresses and the system’s 
  management IP addresses. 