HP StorageWorks XP24000/XP20000 Disk Encryption Users Guide (AE131-96060, March 2009)

2 About DKA Encryption License Key
operations
This chapter describes the functions of DKA Encryption License Key.
• Overview of encryption
• Creating encryption keys
• Backing up encryption keys
• Restoring encryption keys
• Setting or releasing encrypted parity groups
• Formatting an encrypted LDEV
• Encrypting existing data
• Defining encryption status
Overview of encryption
Encryption specification
Table 1 Encryption specification using DKA Encryption License Key
SpecificationItem
AES 256bitEncryption algorithm
Hardware
specification
ECB modeEncryption mode
Open-system volumes, mainframe-system volumes and multi-platform
volumes.
Volume type
Encryptable
volume
All emulation typesEmulation type
Storage system
Unit for creating encryption
key
Encryption key
management
1Number of encryption keys
Parity groupUnit for setting encryption
Allowed (see Encrypting existing data, page 12).Encrypting existing dataData migration
XP24000/XP20000 Disk Encryption User's Guide 9