10.The Enable Encryption wizard guides you through the encryption setup process for key  server. Click  Next , as shown in Figure 8-46. 11.Specify the primary key server name and IP address. Keep the default port 5696, which is  used to communicate between IBM FlashSystem 900 and SKLM key server. Chapter 8. Configuring settings  295 The Primary SKLM server as defined as the first Key Servers in the Enable Encryption  wizard must be the server that is defined as the primary by SKLM administrators. Note:  The supported versions of IBM Security Key Lifecycle Manager (up to V2.7,  which was the latest code version available at the time of this writing) differentiate  between the primary and secondary key server role.  Up to three other key servers can be added later. To ensure that keys are distributed to all  other (secondary) key servers, you must configure replication on IBM Security Key  Lifecycle Manager or manually transfer configuration by using backup or restore from the  primary key server to all secondary key server. Click  Next , as shown in Figure 8-47 on  page 296). Figure 8-46 Encryption Configuration wizard for key server