text: Figure 6-27 Taking a drive offline 
  
  If a spare drive is available and the drive is taken offline, the MDisk of which the failed drive is 
  a member remains*Online*. The spare is automatically reassigned. If no spare drive is 
  available and the drive is taken offline, the status of the array of which the failed drive is a 
  member becomes*Degraded*. Therefore, the status of the storage pool to which the MDisk 
  belongs becomes*Degraded*as well. 
  
  The system prevents you from taking the drive offline if one of the following conditions is true: 
  
  (cid:2) The first option was selected and no suitable spares are available. 
  
  (cid:2) Losing another drive in the array results in data loss. 
  
  A drive that is taken offline is considered*Failed*, as shown in Figure 6-28 on page 211. 