Mellanox ConnectX-2 Dual Port 10 GbE Adapter for
IBM System x
IBM System x at-a-glance guide
The Mellanox ConnectX-2 Dual Port 10 GbE Adapter for IBM System x delivers high-bandwidth and
industry leading low latency 10 GbE connectivity. With industry-leading performance, power-efficiency,
integration and feature set, ConnectX-2 EN with RDMAoE (RDMA over Ethernet) adapters provide an
optimized, low-latency solution for high-transaction databases, financial services, cloud computing, and
virtualized server and storage data center environments. The ConnectX-2 Dual-Port 10 GbE Adapter
improves network performance by increasing available bandwidth to the CPU and providing enhanced
performance especially in virtualized server environments.
The adapter is shown in Figure 1.
Figure 1. Mellanox ConnectX-2 Dual Port 10 GbE Adapter for IBM System x
Did you know?
The Mellanox ConnectX-2 Dual Port 10GbE Adapter for IBM System x is a a high-performance, dual-port
network adapter for 10Gb/s Ethernet (10GbE) networks with performance requirements for low latency. It
provides an ideal solution for all servers needing high- performance, low-latency data transfer in LAN
connectivity for mission-critical applications. This network adapter provides support for 10GbE networking
with optical or copper connectivity.
Mellanox ConnectX-2 Dual Port 10 GbE Adapter for IBM System x1
Part number information
The part number to order this card is shown in Table 1.
Table 1. Ordering part number and feature code
DescriptionPart numberFeature code
Mellanox ConnectX-2 Dual Port 10 GbE Adapter for IBM System x81Y9990A1M4
The adapter has two empty SFP+ cages that support either SFP+ SR transceivers or twin-ax
direct-attached copper (DAC) cables as listed in Table 2.
Table 2. Supported transceivers and direct-attach copper (DAC) cables
DescriptionPart numberFeature code
IBM 10Gb SFP+ SR Optical Transceiver (BN-CKM-SP-SR)44W44084942
IBM/BNT 10Gb SFP+ SR Optical Transceiver 46C3447Not available
IBM/Brocade 10Gb SFP+ SR Optical Transceiver (IB-000180)45W24112117
IBM/Brocade 10Gb SFP+ SR Optical Transceiver 49Y42160069
IBM/QLogic 10Gb SFP+ SR Optical Transceiver (SFP10-SR50-IBMX-BK)49Y42180064
IBM Twinax Direct Attach Cable (DAC) - 1m45W23982711
IBM Twinax Direct Attach Cable (DAC) - 3m45W24082731
IBM Twinax Direct Attach Cable (DAC) - 5m45W30392751
Features and benefits
The Mellanox ConnectX-2 Dual Port 10 GbE Adapter for IBM System x has the following features:
Performance:
Based on ConnectX-2 EN technology, the PCI Express 2.0 x8 adapter provides a high level of throughput
performance for all network environments by removing I/O bottlenecks in mainstream servers that are
limiting application performance. Servers supporting PCI Express 2.0 with 5 GTps can fully utilize both 10
Gbps ports and achieve up to 40 Gbps duplex bandwidth. Hardware-based stateless offload engines
handle the TCP/UDP/IP segmentation, reassembly, and checksum calculations that would otherwise
burden the host processor. These offload technologies are fully compatible with Microsoft RSS and
NetDMA.
RDMA over Ethernet (RDMAoE) further accelerates application run time. The RDMAoE specification
provides efficient data transfer with very low latencies on lossless Ethernet networks. RDMAoE enables
lowest latency memory transaction, with less than 2µs at full bandwidth with small message size. This
allows very high volume, transaction intensive applications typical of financial market firms and other
industries where speed of data delivery is paramount to take advantage. With Mellanox ConnectX-2 Dual
Port 10 Gbe Adapter, high frequency transaction applications are able to access trading information with
shorter times, making sure the trading servers are able to respond first to any new market data and
market inefficiencies, while the higher throughput enables higher volume trading, maximizing liquidity and
profitability.
Mellanox ConnectX-2 Dual Port 10 GbE Adapter for IBM System x2
In data mining or web crawl applications, RDMAoE provides the needed boost in performance to search
faster by solving the network latency bottleneck associated with I/O cards and the corresponding
transport technology in the cloud. Various other applications that benefit from RDMAoE with ConnectX-2
EN include Web 2.0 (Content Delivery Network), Business intelligence, data base transactions and
various Cloud computing applications.
Mellanox ConnectX-2 EN low power consumption, less than 3.5W per port, provides customers high
bandwidth and low latency at the lowest cost of ownership.
I/O virtualization
ConnectX-2 EN with Virtual Intelligent Queuing (Virtual-IQ) technology provides dedicated adapter
resources and guaranteed isolation and protection for virtual machines within the server. The adapter
gives data center managers better server utilization and LAN and SAN unification while reducing cost,
power, and cable complexity.
Quality of Service
Resource allocation per application or per virtual machine is provided by the advanced QoS supported by
ConnectX-2 EN. Service levels for multiple traffic types can be based on IETF DiffServ or IEEE 802.1p/Q,
allowing system administrators to prioritize traffic by application, virtual machine, or protocol.
Specifications
The adapter has the following specifications:
Low-profile adapter form factor
Ports: Two 10 Gigabit Ethernet ports with SFP+ connectors
ASIC: Mellanox ConnectX-2 EN
Cabling types: Direct Attached Copper, SR and LR Fiber Optic
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Mellanox ConnectX-2 Dual Port 10 GbE Adapter for IBM System x7
This document was created or updated on June 28, 2011.
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Mellanox ConnectX-2 Dual Port 10 GbE Adapter for IBM System x8
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