D[NAME] is only enabled at the array level, there is no setting for individual drives.  If D[NAME] shows as enabled in the symcfg list output, then there is nothing else to do.  Also, D[NAME] needs to be enabled when the array is originally configured and installed.  You cannot modify the setting after the VMAX has been configured. 
Hi There, I am having a Symmetrix Vmax 10K,  I want to know whether DARE (Data at rest Encryption) is enabled or not . Enabling here indicates whether it is enabled at drive level or not . I do have symcli command to check the status  symcfg list -sid xx -v  will show the "Symmetrix Data Encryption"  status of the array as enabled/disabled but my concern here is do we have any symcli command or any way to check whether this option is enabled for drive level.
How to enable Data at rest Encryption