To rekey the system that uses key server encryption, complete the following steps: 1. In the management GUI, select  Settings Security Encryption . Expand  Key Servers  to display all configured key servers on the FlashSystem 900 and  select  Rekey  (see Figure 8-62). 2. Click  Yes  in the message window. The encryption key is generated by the primary key  server and copied to the primary key server only. Ignore the GUI message that the  encryption key is stored on all key server (see Figure 8-63).  Figure 8-63 Rekey Key Server confirmation message Figure 8-62 Select Rekey for the primary key server 304  Implementing IBM FlashSystem 900 Model AE3