text: **OAM collection**
  A*collection*is a group of objects that typically have similar performance, availability, backup, 
  retention, and class transition characteristics. A collection is used to catalog many objects, 
  which, if cataloged separately, can require a large catalog. Every object must be assigned to 
  a collection. Object names within a collection must be unique; however, the same object 
  name can be used in multiple collections. Each collection belongs to only one object storage 
  group. Each storage group can contain from one to many collections. 
  
  **Important:**A collection is the only interface that is used by the administrator to determine 
  how to store objects in OAM. It is used when you create a storage set. 