text: **12.5 Configuring more providers**
  
  After the system is configured with a single encryption key provider, a second provider can be 
  added. 
  
  **Note:**If you set up encryption of your storage system when it was running IBM Spectrum 
  Virtualize code version earlier than V7.8.0, you must rekey the master encryption key 
  before you can enable second encryption provider when you upgrade to code version V8.1 
  or later. 