Figure 2.17 Confirmation Screen For The Master Key Setting - Fujitsu ETERNUS LT260 User Manual

Chapter 2 Setup and Operation Procedures
2.1 Basic Setup
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On the confirmation screen, click [Yes] to confirm the setting.
If a master key is already set, the old master key is overwritten with a new master key. Data that was
encrypted using the old master key cannot be read. For details about backing up the master key, refer
to "2.1.3.2 Exporting the Master Key" (page

Figure 2.17 Confirmation screen for the master key setting

2.1.3.2 Exporting the Master Key
The purposes for exporting the master key are as follows.
• Backing up the master key
By exporting the generated master key, backups are saved externally.
• Sharing the master key with other tape libraries
When the encrypted data is shared between multiple tape libraries, the master key is shared by importing
the exported master key to other tape libraries.
For the LT260, if a maintenance part must be replaced due to a failure, the master key and encryption keys
may need to be exported and imported by the user.
When exported, the master key is created as a binary file that is protected by a password. There is no risk of
decrypting the master key.
If a master key is not set and the imported master key does not exist, a master key is automatically created
when the data is first written to the data cartridge in each partition.
FUJITSU Storage ETERNUS LT260 Tape Library Key Management Function Option User's Guide
35).
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