text: With data migration, apply the following guidelines: 
  
  (cid:2) Choose the data migration method that best fits your operating system platform, type of 
  data, and SLA. 
  
  (cid:2) Choose where you want to place your data after migration in terms of the storage tier, 
  pools, and back-end storage. 
  
  (cid:2) Check whether enough free space is available in the target storage pool. 
  
  (cid:2) To minimize downtime during the migration, plan ahead of time all of the required 
  changes, including zoning, host definition, and volume mappings. 
  
  (cid:2) Prepare a detailed operation plan so that you do not overlook anything at data migration 
  time. Especially for a large or critical data migration, have the plan peer reviewed and 
  formally accepted by an appropriate technical design authority within your organization. 
  
  (cid:2) Perform and verify a backup before you start any data migration. 
  
  (cid:2) You might want to use the Storwize V7000 as a data mover to migrate data from a 
  
  non-virtualized storage subsystem to another non-virtualized storage subsystem. In this 
  case, you might have to add checks that relate to the specific storage subsystem that you 
  want to migrate. 