text: **Client node**
  In Figure 5-1, the client node represents a Content Manager OnDemand object server with an 
  installed Tivoli Storage Manager archive API. The client node is assigned to a policy domain. 
  Each Content Manager OnDemand system that stores reports in Tivoli Storage Manager 
  needs at least one defined client node. 
  
  **Storage policy**
  A storage policy consists of the following items: 
  
  (cid:2) Policy domain: Contains the policy set, management class, and archive copy group that is 
  used by the client node 
  
  (cid:2) Policy set: Contains management classes, which contain the archive copy groups 
  
  (cid:2) Management class: Determines where data is stored and how it is managed 
  
  (cid:2) Archive copy group: Used to copy data to Tivoli Storage Manager for long-term storage 
  
  **Storage devices and media**
  Storage devices and media consist of the following items: 
  
  (cid:2) Library: One or more drives with similar media mounting requirements. Only defined when 
  you have an external library. 
  
  (cid:2) Drive: A drive mechanism, which is defined by Tivoli Storage Manager, that is in an optical 
  or tape library or stand-alone device. 
  
  (cid:2) Device class: Specifies the device type and how the device manages media. 
  
  (cid:2) Storage pools and volumes: A named collection of storage volumes of the same media 
  type that is associated with a device class. 