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Chapter 11 System Management
11.2 Functions in the Action Area for System
ETERNUS Web GUI User’s Guide
Copyright 2013 FUJITSU LIMITED P2X0-1090-10ENZ0
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11.2.13.5 Setup Encryption Mode
This function sets the encryption mode to encrypt volumes by using the CM.
The procedure to set the encryption mode is as follows:
Procedure
1 Click [Setup Encryption Mode] in [Action].
2 Select the encryption mode and click the [Set] button.
• Encryption Mode
The current encryption mode is displayed.
When changing the encryption mode, select "Disable", "Fujitsu Original" or "AES".
- Disable
"Disable" means no encryption function is used. When changing the encryption mode from
"Fujitsu Original" to "Disable" or from "AES" to "Disable", reboot the ETERNUS DX Disk storage
system.
- Fujitsu Original
"Fujitsu Original" is an encryption method which uses a Fujitsu proprietary algorithm. Compared
to AES, its practical security level is almost equal while it allows faster processing than AES.
- AES
"Advanced Encryption Standard (AES: Standard encryption used for information processing by
the US federal government)" is a standardized encryption method. The ETERNUS DX80 S2/DX90
S2, the ETERNUS DX410 S2/DX440 S2, and the ETERNUS DX8100 S2/DX8700 S2 adopt the AES
128-bit encryption.
• Encryption related functions are only available after enabling the encryption mode.
• When disabling the encryption mode, reboot the ETERNUS DX Disk storage system.
• When changing the encryption mode, delete all the encrypted volumes and volumes being encrypted in
advance.
• Once a volume has been encrypted, it cannot be changed back to a non-encrypted volume.
• This function cannot be changed in the following conditions:
- Encrypted volumes exist
- Volumes being encrypted exist
• If a CM has a cache capacity that is 6GB or less in an ETERNUS DX8700 S2, the encryption mode cannot be
enabled ("Fujitsu Original" or "AES" cannot be selected).
When using the encryption function, set the encryption mode to "Fujitsu Original" or "AES".