Encryption Key; Backup Of Encryption Key - NEC T30A User Manual

6.1.3.2 Encryption Key

Encryption keys can be set on each tape medium. Set these keys only to necessary tape medium.
If you use the master key to share tape medium, it is not possible to share only some tape medium
because all the tape medium automatically generated using the master key are shared.
However, you can share tape medium without using the master key by individually setting an
encryption key to the tape media containing the tape medium you want to share.

6.1.3.3 Backup of encryption key

If an encryption key is lost due to a device failure or other cause, the encrypted data in the tape
medium cannot be decrypted. Therefore, always back up an encryption keys when registering the
master key or setting the encryption keys to a Library.
For backup procedures, see sections 6.2.1.5 Exporting (backing up) the master key /
6.3.5.1 Backing up the KEY database .
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