When are data encryption keys needed

After you setup the encryption environment, you will need data encryption keys to perform the following operations:

• Adding drives

A Free key is needed for each drive to allocate a DEK key.

• Replacing drives

A Free key is needed for each drive to change a DEK key.

• Adding or replacing encrypting back-end directors (EBEDs)

Six Free keys are needed for each EBED to create four CEK keys and two keys to register CEK keys.

• Updating CEK keys

For VSP G200, VSP G400, G600, and VSP F400, F600: Two Free keys for each disk board (Four Free keys per storage system) are needed to change CEK keys.

For VSP G800 and VSP F800:

Two Free keys for each disk board (16 free keys per storage system) are needed to change CEK keys.

For VSP G1000, G1500, and VSP F1500:

Four Free keys for each EBED (32 Free keys per storage system) are needed to change CEK keys.

If a problem occurs during an operation, extra keys might be needed to recover from the problem.