HP XP20000XP24000 Disk Array - Manual (Page 9)

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
Specification Item
AES 256bit Encryption algorithm
Hardware
specification
ECB mode Encryption mode
Open-system volumes, mainframe-system volumes and multi-platform
volumes.
Volume type
Encryptable
volume
All emulation types Emulation type
Storage system
Unit for creating encryption
key Encryption key
management
1 Number of encryption keys
Parity group Unit for setting encryption
Allowed (see Encrypting existing data , page 12). Encrypting existing data Data migration
XP24000/XP20000 Disk Encryption User's Guide 9