text: **4.7 Other administrative procedures**
  
  In this section, we discuss other administrative procedures. 
  
  **4.7.1 Removing a control enclosure from a clustered system**
  
  Removing a control enclosure from a system causes a loss of access to drives in this control 
  enclosure and any expansions enclosures connected to this control enclosure. If not planned 
  and executed carefully and correctly, this procedure can cause disruption in access to storage 
  or data loss. Make sure that you have current and verified data backups before removing a 
  control enclosure from a system. Follow carefully the enclosure removal procedure that is 
  provided at this IBM Knowledge Center web page. 
  
  **4.7.2 Shutting down the system**
  
  You can safely shut down an Storwize V7000 cluster by using the GUI or CLI. 
  
  After you shut down the entire cluster, you need to power it on manually to start the system 
  again. Make sure that someone is available with physical access to the IBM Spectrum 
  Virtualize hardware who can start the system after it is shut down. 
  
  **Note:**For systems with enabled encryption, ensure that the cluster can access at least one 
  valid encryption key provider. Access to an encryption key provider (USB key or a key 
  server) is required at start time to unlock encrypted data. 