Explanation/Reference:
The keystore is tied to the storage processors, so care must be taken when performing service operations
in order to preserve the encryption keys. In the event that the chassis and both storage processors need to
be replaced, both storage processors should not be replaced at the same time. Instead, the chassis
replacement should be followed while retaining one SP until the array is back online before replacing the
second SP. In the case that storage processors have already been replaced at the same time and the
keystore was lost, the keystore may be restored from an external backup.