text: **Vital product data**
  Vital product data (VPD or VDP) is information that uniquely defines system, hardware, 
  software, and microcode elements of a processing system. 
  
  **Volume**
  A volume is an IBM Storwize V7000 logical device that appears to host systems that are 
  attached to the SAN as a SCSI disk. Each volume is associated with exactly one I/O Group. A 
  volume has a preferred node within the I/O Group. 
  
  **Volume copy**
  A volume copy is a physical copy of the data that is stored on a volume. Mirrored volumes 
  have two copies. Non-mirrored volumes have one copy. 
  
  **Volume protection**
  To prevent active volumes or host mappings from inadvertent deletion, the system supports a 
  global setting that prevents these objects from being deleted if the system detects that they 
  have recent I/O activity. When you delete a volume, the system checks to verify whether it is 
  part of a host mapping, FlashCopy mapping, or remote-copy relationship. In these cases, the 
  system fails to delete the volume, unless the**-force**parameter is specified. Using the**-force**
  parameter can lead to unintentional deletions of volumes that are still active. Active means 
  that the system detected recent I/O activity to the volume from any host. 