Chelsio Communications www.chelsio.com sales@chelsio.com +1-408-962-3600•• •
High Performance
10GbE Storage Accelerator
S310E-CR
S310E-CXA*
S310E-BT
Highlights
Applications
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‘Unified Wire’ interconnect solution for
server networking, storage networking,
and clustering on a single
platform
Reduces host CPU utilization by up to
90% compared to NICs without full
offload capabilities
PCI Express 8x host bus interface
Line-rate 10Gbps full-duplex
performance
Integrated traffic manager, QoS, and
virtualization capabilities
TCP sockets, SCSI, RNIC-PI, kDAPL,
and OpenFabrics 1.3 software inter-
faces
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
Full TCP offload, iSCSI, and iWARP
RDMA plus direct data placement (DDP)
Very low latency Ethernet
Increase cluster fabric bandwidth
Data-Center Networking
Networked Storage
High Performance Computing
*Active cable
capable
CHELSIO’SS310E 10GbE
Storage Accelerator is a
10 Gigabit Ethernet adapter
with PCI Express host bus
interface optimized for stor-
age applications. The third-
generation technology from
Chelsio provides the highest
10GbE performance available
and dramatically lowers host-
system CPU communications
overhead.
With on-board hardware that off-
loads TCP/IP, iSCSI, and iWARP
RDMA processing from its host sys-
tem, the S310E frees up host CPU
cycles for useful applications. The
system achieves increased bandwidth,
lower latency, and lower power.
This combination makes it practical to con-
verge other networks that traditionally used
niche technologies onto 10GbE. High band-
width and extremely low latency make
10GbE with protocol offload the best technol-
ogy for high-performance cluster computing
(HPCC) fabrics.
The S310E also accelerates the iSCSI protocol
for block-level storage traffic between servers and storage systems. With
high-speed iSCSI, 10GbE is now the best technology for storage area net-
works. For more info on Chelsio’s iSCSI solution, please go to our website
at www.chelsio.com.
With the S310E, 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.
10Gb 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
Unified Wire TCP/IP Storage••
Fully Featured Server Adapter
Third-Generation Protocol Offload Engine
Complete and Flexible TCP Offload
Upper Layer Protocols
Robust, Proven Solution
Software Drivers
Product Models
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The S310E offers best-of-class performance and features, including IP/UDP/TCP
checksum and large send offload, rate control and QoS, virtualization, and rule-
based traffic steering and filtering.
The S310E employs Chelsio’s unique third-generation Terminator 3 ASIC, a high-
performance, programmable protocol processor. Terminator 3 processes all con-
nections in a single datapath to deliver line-rate 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 pro-
cessing among parallel processors to achieve full performance, are ultimately lim-
ited by the performance of each processor.
The Terminator 3 ASIC has hundreds of programmable registers for protocol con-
figuration, RFCs, and offload control. The S310E can offload TCP processing per-
connection, per-server, per-interface, and globally and simultaneously tunnel traf-
fic from non-offloaded connections to the host processor for the native TCP/IP
stack to process. The S310E provides a flexible zero copy capability for regular
TCP connections, requiring no changes to the sender, to deliver line rate perfor-
mance at minimal CPU utilization.
The S310E offloads the expensive byte touching iSCSI operations 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. The S310E also implements a high-capacity, low-
latency, high-bandwidth iWARP RDMA/RDDP, which adheres to the IETF stan-
dards.
Subjected to thousands of hours of compatibility testing, over two years of stress
testing by several OEM test suites and production deployments in servers, stor-
age systems and cluster computing, Chelsio’s robust, stable protocol offload tech-
nology delivers proven performance in a wide range of environments. The S310E
is generations ahead of competing products.
Chelsio offers a full suite of protocol software and drivers with the S310E adapt-
ers. See www.chelsio.com/support for latest info. The software supports opera-
tion in both protocol-offload and non-offload modes.
10GBASE-SR or LR†10GBASE-CX4 RJ-45
300m or 10km 15m 30m
LC Duplex CX4 Cat-6a
MMF or SMF CX4 copper* Twisted Pair
Model:
Physical interface:
Distance:
Connector:
Media:
S310E-CR S310E-CXA S310E-BT
*Supports active optical cables with distances up to 100 meters
†SFP+ optics sold separately. Only Chelsio-supplied modules may be used:
SM10G-SR 10G short-reach SFP+ optic module
SM10G-LR 10G long-reach SFP+ optic module
CX4CABLE3M CX4 copper cable, 10GBASE-CX4, 3-meter
CX4CABLE15M CX4 copper cable, 10GBASE-CX4, 15-meter
SRCABLE3M Fiber optic cable, 10GBASE-SR, 3-meter
LRCABLE3M Fiber optic cable, 10GBASE-LR, 3-meter
TAPCABLE1M Twinax passive cable, 1-meter
TAPCABLE3M Twinax passive cable, 3-meter
TAPCABLE5M Twinax passive cable, 5-meter
Specifications
Host Interface
Network Interfaces
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 x8, x4, x2, x1
MSI-X, MSI and support for legacy pin interrupts
10GBASE-SR short-reach optics (850nm)
10GBASE-LR long-reach optics (1310nm)
10GBASE-CX short-reach copper
10GBASE-T
IEEE 802.3ae (10GbE)
IEEE 802.1p Priority and 802.1Q VLAN tagging
IEEE 802.3x flow control
IEEE 802.3ad load-balancing and failover
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 during 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 1.3
Dimensions without bracket:
S310E-CR & S310E-CXA
6.6 in. x 2.5 in. or 16.8 cm x 6.4 cm
S310E-BT
6.6 in. x 4.2 in. or 16.8 cm x 10.7 cm
Operating Temp: 0 to 55ºC or 32 to 131ºF
Operating Humidity: 5 to 95%
Typical power consumption
S310E-CR: 16.7W
S310E-CXA: 16W
S310E-BT: 24W
Large Receive Offload (LRO) for IPv4 & IPv6
Airflow: 200 lf/m
Shipped with both a full-length bracket (attached)
and a low-profile bracket.
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MMIX-0721
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.
