Specifications

ES/OL

Evaluator Series On-Line™

Storage Systems

Product Analysis

May, 2011

Page 10 of 30

Analysis of Fujitsu ETERNUS DX400 S2

Models DX410 and DX440

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• Everyday - The mode is enabled every day from the specified start time to the specified end time.

• Every week - The mode is enabled every day from the specified start time to the specified end time.

• Specific day – The day or date of the month, along with start, and number of days is specified

• Specific week – A day of the week within the month, along with the start and ending day of the week and

the starting and ending time are specified

• Last Access Time – A specific amount of time has elapsed since a RAID group was last accessed, this

may be set to 10, 20, 30, 40, 50 or 60 minutes (default is 30 minutes)

Evaluator Group Comments: The lower power consumption of ECO-Mode is a somewhat unique

feature in the midrange market segment that provides customers with greater flexibility in matching

their storage systems to business requirements.

Disk Data Encryption

ETERNUS provides data encryption and protects critical, security sensitive data from unauthorized access to

drives that have been removed from the storage system. Setup and management of encryption is via the

ETERNUS management console and encryption is on a LUN by LUN basis.

There are two primary encryption algorithms supported:

• Fujitsu Original Encryption mode

• AES 128-bit (Advanced Encryption Standard) mode

All data within the system is encrypted and decrypted within the controller as shown below in Figure 4. When

encryption is enabled, data stored on disks is all encrypted with the same key. By keeping the key separate

from the drives, Fujitsu provides a high level of security if drives are lost or stolen.

Figure 4: Disk Data Encryption Detail (Source: Fujitsu)