HDD Encryption Unit
D017/D018/D019/D020 1-78 SM
Encryption Key Restoration
If the controller board becomes defective [A] and needs to be replaced, "Encryption key
restoring" is required in order to use the data on the NVRAM and HDD.
This is because this encryption function works properly only when the keys in the
controller board, NVRAM and HDD match.
SC858, 859 or 878 occurs if there is a problem with restoring or updating the
encryption key. (For details of how to update the encryption key, refer to the Operating
Instructions.)
The customer engineer then asks an administrator to input the encryption key [B] into
an SD card [C].
Encryption key restoration is completed [D] after installation (by the CE) and activation
by the administrator.
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