Specifications

ES/OL
Evaluator Series On-Line™
Storage Systems
Product Analysis
May, 2011
Page 26 of 30
Analysis of Fujitsu ETERNUS DX400 S2
Models DX410 and DX440
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iSCSI Remote Adapter (optional hardware)
The iSCSI Remote Adapter (iSCSI-RA) provides a number of features for the ETERNUS DX400 S2 and other
ETERNUS storage systems.
• Optimized TCP acceleration
1. Provides optimization for all TCP protocols (FTP, iSCSI, etc)
2. High bandwidth using large TCP window size
1. Supports up to 300 Mbps effective TCP transfer rate per card
2. Supports 500 ms RTT TCP connections
• Encrypted TCP Communication
3. Utilizes AES encryption with HMAC-MD5 authentication
4. Supports standard IPsec security
• Bandwidth Control
5. Traffic shaping and QoS
6. Automatic TCP window size adjustment with 50 micro-second precision
• Embedded WAN acceleration
7. All functions supported on one chip on an AMC (Advanced Mezzanine Card)
Evaluator Group Comments: The Fujitsu iSCSI–RA cards provide a significant advantage for
customers looking to deploy a cost effective remote replication setup. The use of iSCSI leverages
TCP/IP, thereby removing the need for FCIP converters commonly found with FC based replication.
Additionally, the encryption provides a level of security mandated by many companies either for
security requirements or best practices guidelines. Finally, the inclusion a TCP accelerator can
eliminate the need for a separate WAN accelerator in many cases. As a result, it is possible for
customers to save well over $100,000 using the Fujitsu iSCSI-RA cards rather than external encryption
and WAN accelerators.