IBM CONNECTX-2 manual Part number information, Features and benefits, Performance

Part number information

The part number to order this card is shown in Table 1.

Table 1. Ordering part number and feature code

Description	Part number	Feature code
Mellanox ConnectX-2 Dual Port 10 GbE Adapter for IBM System x	81Y9990	A1M4

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

Description	Part number	Feature code
IBM 10Gb SFP+ SR Optical Transceiver (BN-CKM-SP-SR)	44W4408	4942
IBM/BNT 10Gb SFP+ SR Optical Transceiver	46C3447	Not available
IBM/Brocade 10Gb SFP+ SR Optical Transceiver (IB-000180)	45W2411	2117
IBM/Brocade 10Gb SFP+ SR Optical Transceiver	49Y4216	0069
IBM/QLogic 10Gb SFP+ SR Optical Transceiver (SFP10-SR50-IBMX-BK)	49Y4218	0064
IBM Twinax Direct Attach Cable (DAC) - 1m	45W2398	2711
IBM Twinax Direct Attach Cable (DAC) - 3m	45W2408	2731
IBM Twinax Direct Attach Cable (DAC) - 5m	45W3039	2751

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 x 2