Dell Chassis Management Controller Version 3.0 for Dell EMC PowerEdge VRTX User's Guide

Unlocking Foreign Configuration

Drives which are part of secure virtual disks are called secured drives. Secured drives can be migrated from one controller to another controller. If a different encryption or security key is configured for the destination controller, the security status of these drives is displayed as ‘locked’ and cannot be seen as part of ‘preview foreign config’. The ‘Import foreign config’ does not detect these foreign drives.

While running the unlock command, provide the source controller passphrase and key ID for these drives. Even after unlocking, the ‘foreign controller key’ still secures these drives. However, you can see these drives while searching for foreign drives in the existing ‘preview foreign config’. You can import or clear the foreign configuration on these secure drives.

If foreign drives with different security keys are migrated from more than one controller, then unlock and import or clear the set of drives from one foreign controller before unlocking the drives migrated from another controller. This action ensures that unlock is not allowed on a controller, if the controller has drives that are unlocked but not imported or cleared.

Once drives are unlocked, you can import the foreign configuration using the CMC web interface or RACADM.

If the controller is power cycled after the unlock and before the import phase, the drives are locked again.

If the system has multiple foreign configurations, unlock and import each foreign configuration before unlocking the foreign configuration.

The key ID used in unlocking is used only to identify the drives with matching the key ID. After the matching drives are found, the passphrase is used for unlocking the drives.