Management Of Key Information And Encryption Setting Information; Operational Examples; Data Sharing Between Centers; Figure 1.3 Data Cartridge Sharing Using One Master Key - Fujitsu ETERNUS LT260 User Manual

Chapter 1 Overview

1.6 Operational Examples

1.5.3

Management of Key Information and Encryption Setting Information

Although key information and encryption setting information are stored in a redundant manner in the tape
library, encryption keys may be lost in the rare event that the tape library fails. The encrypted data saved on
data cartridges can no longer be decrypted in such a case. Therefore, after registering a master key or setting
an encryption key for a data cartridge, be sure to export the encryption key and keep it in a safe place.
For information on exporting a master key, refer to
information on backing up encryption setting information, refer to
(page 56).
1.6 Operational Examples
It is not necessary to make any change to existing operations in order to use data encryption using the Key
Management Function Option.
This section describes operational examples of sharing data on encrypted data cartridges among multiple
tape libraries and external storage of encrypted data cartridges.
1.6.1

Data Sharing between Centers

Setting the same master key for multiple tape libraries installed in the same center or separate centers
enables these libraries to share data cartridges with encryption keys hidden from view.

Figure 1.3 Data cartridge sharing using one master key

Primary-site
Master key A
FUJITSU Storage ETERNUS LT260 Tape Library Key Management Function Option User's Guide
"2.1.3.2 Exporting the Master Key" (page
16
Copyright 2016 FUJITSU LIMITED
"2.2 Backing Up the Setting Information"
Backup-center
Master key A
P3AG-1192-02ENZ0
35). For