PCIe adapter placement rules and slot priorities for the 8335-GTG, 8335-GTH, or 8335-GTX system

Find information about the placement rules and slot priorities for the Peripheral Component Interconnect Express (PCIe) adapters that are supported for the system.

PCIe slot descriptions

The system provides PCIe generation 4 slots. Table 1 lists the PCIe adapter slots and details for the system as viewed from the rear and going from left to right. Figure 1 shows the rear view of the system with the PCIe adapter slots. The system supports half-height, half-length and short (low-profile) PCIe adapters.

Figure 1. Rear view of a system with PCIe slots indicated
Rear view of a system with PCIe slots indicated
Table 1. PCIe slots and descriptions for the system
Slot identification Description Adapter size Processor module Coherent Accelerator Processor Interface (CAPI)
1 PCIe4 x4 Half-height, half-length CPU 0 No
2 PCIe4 x8 Half-height, half-length CPU 1 (shared) Yes
3 PCIe4 x16 Half-height, half-length CPU 1 Yes
4 PCIe4 x16 Half-height, half-length CPU 0 Yes

PCIe adapter placement rules

Use this information to select slots for installing PCIe adapters in the system. Table 2 provides information about the adapters, the slot priorities in the system they are supported on, and the maximum number of adapters that can be installed in the supported system. The link that appears in the feature code column provides more technical information specific to the PCIe adapter.
Table 2. PCIe adapter slot priorities and maximum adapters supported in the system
Feature code Description Slot priorities (slot identification 1-4) Maximum number of adapters supported
EC2R1 PCIe3 2-port 10 Gb NIC and RoCE SR/CU adapter (FC EC2R and EC2S; CCIN 58FA); Adapter FRU number: 01FT759 3, 4, 2 3
EC2T1 PCIe3 2-port 25/10 Gb NIC and RoCE SR/CU capable adapter (FC EC2T and EC2U; CCIN 58FB); Adapter FRU number: 01FT753 3, 4, 2 3
EC3L PCIe3 2-port 100 GbE (NIC and RoCE) QSFP28 adapter (FC EC3L and EC3M; CCIN 2CEC); Adapter FRU number: 00WT078 4, 3 2
EC5A Non-volatile Memory PCIe3 x8 1.6 TB SSD NVMe adapter (FC EC5A; CCIN 58FC); Adapter FRU number: 01DH573 2, 3, 4 3
EC5C PCIe3 x8 Non-Volatile Memory 3.2 TB SSD NVMe adapter (FC EC5C and EC5D; CCIN 58FD); Adapter FRU number: 01DH361 4, 3, 2 3
EC5E PCIe3 x8 Non-Volatile Memory 6.4 TB SSD NVMe adapter (FC EC5E and EC5F; CCIN 58FE); Adapter FRU number: 01DH365 4, 3, 2 3
EC5G Non-volatile Memory PCIe3 x8 1.6 TB SSD NVMe adapter (FC EC5A and EC5G; CCIN 58FC); Adapter FRU number: 01LK427 4, 3, 2 3
EC62 PCIe4 x16 1-Port EDR 100 Gb InfiniBand ConnectX-5 CAPI capable adapter (FC EC62; CCIN 2CF1); Adapter FRU number: 00WT179 2, 3, 4 3
EC64 PCIe4 x16 2-Port EDR 100 Gb InfiniBand ConnectX-5 CAPI capable adapter (FC EC64; CCIN 2CF2); Adapter FRU number: 00W176 2, 3, 4 3
EC67 PCIe4 x16, 2-port 100 Gb RoCE En ConnectX-5 adapter (FC EC66 and EC67; CCIN 2CF3); Adapter part number: 01FT742 4, 3, 2
Note: If slot 2 is populated by FC EC64 adapter, use slots 4 and 3 for EC67.
 3
EL3Z PCIe2 LP 2-port 10 GbE BaseT RJ45 adapter (FC EL3Z and FC EN0X; CCIN 2CC4); Adapter FRU number: 00E2714 3, 4, 2, 1 4
EL43 PCIe3 LP 16 Gb 2-port Fibre Channel adapter (FC EL43 and FC EN0B; CCIN 577F); Adapter FRU number: 00E3496 3, 4, 2 3
EL4M PCIe2 LP 4-port 1 GbE adapter (FC 5260, FC 5899, FC EL4L, and FC EL4M; CCIN 576F); Adapter FRU number: 74Y4064 1, 2, 3, 4 4
EL5V PCIe3 8x 2-port Fibre Channel (32 Gb/s); (FC EN1A, FC EN1B, FC EL5V, and EL5U; CCIN 578F); Adapter FRU number: 01FT704 3, 4, 2 3
EN0T PCIe2 LP 4-port (10 Gb + 1 GbE) SR+RJ45 adapter (FC EN0T; CCIN 2CC3); Adapter FRU number: 00E2715 3, 4, 2, 1 4
EN0V PCIe2 LP 4-port (10 Gb + 1 GbE) Copper SFP+RJ45 adapter (FC EN0V; CCIN 2CC3); Adapter FRU number: 00E2715 3, 4, 2, 1 4

1 The adapter is only supported on the 8335-GTH and 8335-GTX systems.

* Review SMPI software restrictions that might prevent you from using more than four RMDA interfaces. Slot 2 is a bifurcated slot. A two port adapter is configured as four RDMA interfaces; two from CPU 0 and two from CPU 1. Therefore the adapters in slot 4, 3, and 2 have 8 RDMA interfaces.

** Due to airflow restrictions, the adapter configuration is restricted to slots 4 and 3.