Chelsio Communications www.chelsio.com sales@chelsio.com +1-408-962-3600•• •
High Performance, Multi-Port
1GbE Storage Accelerator
Unified Wire TCP/IP Storage••
S304E-BT
CHELSIO’Smulti-port 1 Gigabit
Ethernet adapters are opti-
mized for storage applications. The
third-generation technology from
Chelsio provides the highest 1GbE
performance available and dramati-
cally lowers host-system CPU com-
munications overhead.
With on-board hardware that
offloads TCP/IP, iSCSI, and iWARP
RDMA processing from its host sys-
tem, the adapters free up host CPU cycles for useful applications. The sys-
tem achieves increased bandwidth, lower latency, and lower power.
The adapters accelerate the iSCSI protocol for block-level storage traffic
between servers and storage systems. For more info on Chelsio’s iSCSI
solution, please go to our website at www.chelsio.com.
The adapters’ multiple ports and IEEE 802.3ad link aggregation/ failover
features are ideal for critical network applications that require redundancy
and high-availability capabilities.
With these adapters, Chelsio is delivering on the promise of the ‘unified
wire,’ enabling the convergence of server networking, storage networking,
and cluster computing interconnects onto a single platform and a single
fabric.
1Gb Ethernet-only networking reduces the data center’s cost in network
adapters, cables, switches, rack space, power, equipment spares, man-
agement tools, planning, networking skills, and installation.
You can get a white paper on Chelsio’s Unified Wire solution at our
website, www.chelsio.com.
The ‘Unified Wire’Solution
Highlights
Applications
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‘Unified Wire’ interconnect solution for
server networking, storage network-
ing, and clustering on a single
platform
Full TCP offload, iSCSI, and iWARP
RDMA plus direct data placement (DDP)
Very low latency Ethernet
Increase cluster fabric bandwidth
Reduces host CPU utilization by up to
90% compared to NICs without full
offload capabilities
PCI Express 8x host bus interface
Line-rate 1Gbps full-duplex performance
Integrated traffic manager, QoS, and
virtualization capabilities
TCP sockets, SCSI, RNIC-PI, kDAPL,
and OpenFabrics software interfaces
Powerful per-connection, per-server,
and per-interface configuration and
control
Scale up servers and NAS systems
Link servers in multiple facilities to syn-
chronize data centers
Consolidate LAN, SAN, and cluster
networks
Enable high performance NAS systems
and Ethernet-based IP SANs
Deploy Ethernet-only IP SANs through-
out the enterprise beyond the data
center
Develop shared-storage systems provid-
ing both file- and block-level services
Deploy Ethernet-only networking for clus-
ter fabric, LAN, and SAN
Routable infrastructure
Data-Center Networking
Networked Storage
High Performance Computing
Fully Featured Server Adapter
Third-Generation Protocol Offload Engine
Complete and Flexible TCP Offload
Upper Layer Protocols
Robust, Proven Solution
Software Drivers
Product Models
Chelsio’s multi-port 1GbE adapters offer best-of-class performance and fea-
tures, including IP/UDP/TCP checksum and large send offload, rate control
and QoS, virtualization, and rule-based traffic steering and filtering.
These adapters employ Chelsio’s unique third-generation Terminator 3ASIC,
a high-performance, programmable protocol processor. Terminator 3 pro-
cesses all connections in a single datapath to deliver line-rate 1Gbps or
10Gbps performance with one connection, up to thousands of connections.
In contrast, competitive multi-RISC offload engines, which rely on having
enough connections to distribute their processing among parallel processors
to achieve full performance, are ultimately limited by the performance of each
processor.
The Terminator 3 ASIC has hundreds of programmable registers for protocol
configuration, RFCs, and offload control. Chelsio’s multi-port 1GbE adapters
can offload TCP processing per-connection, per-server, per-interface, and
globally and simultaneously tunnel traffic from non-offloaded connections to
the host processor for the native TCP/IP stack to process. These adapters pro-
vide a flexible zero copy capability for regular TCP connections, requiring no
changes to the sender, to deliver line rate performance at minimal CPU utili-
zation.
Chelsio’s multi-port adapters offload the expensive byte touching iSCSI oper-
ations and payload placement to greatly accelerate iSCSI performance for IP
SAN applications while maintaining flexibility. The iSCSI protocol itself can be
implemented by vendors to provide product differentiation. These adapters
also implement a high-capacity, low-latency, high-bandwidth iWARP
RDMA/RDDP, which adheres to the IETF standards.
Subjected to thousands of hours of compatibility testing, over three years of
stress testing by several OEM test suites and production deployments in serv-
ers, storage systems and cluster computing, Chelsio’s robust, stable protocol
offload technology delivers proven performance in a wide range of environ-
ments. Chelsio’s adapters are generations ahead of competing products.
Chelsio offers a full suite of protocol software and drivers for the S304E-BT
adapters. See www.chelsio.com/support for latest info. The software sup-
ports operation in both protocol-offload and non-offload modes for Linux.
PCI Express
100m
Cat-5
Twisted pair
Model:
Host interface
Physical interface:
Distance:
Connector:
Media:
S304E-BT
Four RJ-45
Specifications
Host Interface
Network Interface
Ethernet
Stateless Offloads
TCP/IP Full Offload
Integrated Traffic Manager
Virtualization and Firewall
iSCSI Acceleration
High Performance RDMA
Physical and Environmental
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PCI Express 1.1 x4, x2, x1
MSI-X, MSI and support for legacy pin
interrupts
1000BASE-T
IEEE 802.1p Priority and 802.1Q VLAN tagging
IEEE 802.3x flow control
IEEE 802.3ad link aggregation
Ether II and 802.3 encapsulated frames
Multiple MAC addresses per interface
Jumbo Frames up to 9.6Kbytes
TCP checksum offload for IPv4 & IPv6
TCP Segmentation Offload (TSO) for IPv4 &
IPv6
Large Send Offload (LSO) for IPv4 & IPv6
UDP checksum offload for IPv4 & IPv6
Receive Side Scaling and packet steering
Line rate packet filtering and attack protection
Full TCP implementation including exceptions
High performance even in presence of packet
loss
Extensive RFC compliance, fully featured stack
Zero copy on Tx and Rx
Direct Data Placement (DDP)
Up to 64K simultaneous connections capacity
Multiple Tx & Rx queues with QoS
Two separate channels for simultaneous low
latency & high bandwidth
Per-connection and per-class rate control
Packet loss avoidance
Rule-based packet steering and filtering
capability
Full iSCSI initiator and target mode stack
Header & Data Digest (CRC) generation &
checking
PDU recovery
Direct Data Placement (DDP)
Ultra-low latency, line rate bandwidth
IETF RDDP and RDMAC iWARP compliance
APIs: RNIC-PI, kDAPL and OpenFabrics
Dimensions without bracket: 6.6 in. x 4.2 in. or
16.8cmx10.7cm
Operating Temp: 0 to 55ºC or 32 to 131ºF
Operating Humidity: 5 to 95%
Typical power consumption: 20W
Large Receive Offload (LRO) for IPv4 & IPv6
Airflow: 200 lf/m
MMIX-0804A
Chelsio Communications www.chelsio.com sales@chelsio.com +1-408-962-3600•• •
INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH CHELSIO PRODUCTS. NO LICENSE, EXPRESS OR
IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT.
EXCEPT AS PROVIDED IN CHELSIO’S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS, CHELSIO ASSUMES NO
LIABILITY WHATSOEVER, AND CHELSIO DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY, RELATING TO SALE AND/OR
USE OF CHELSIO PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR
PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY
RIGHT. CHELSIO PRODUCTS ARE NOT INTENDED FOR USE IN MEDICAL, LIFE SAVING, OR LIFE SUSTAINING
APPLICATIONS. CHELSIO MAY MAKE CHANGES TO SPECIFICATIONS AND PRODUCT DESCRIPTIONS AT ANY TIME,
WITHOUT NOTICE.
