IBM Power Systems 9043-MRX User Manual

Table 4. Slot locations and descriptions for the EMX0 PCIe3 expansion drawer
Location code Description
Slot capabilities
SR-IOV Dynamic direct
memory access
(DMA) window
I/O adapter
enlarged capacity
enablement order
P1-C1 PCIe3 x16 Yes Yes Yes
1
P1-C2 PCIe3 x8 Yes Yes No
P1-C3 PCIe3 x8 Yes Yes No
P1-C4 PCIe3 x16 Yes Yes No
P1-C5 PCIe3 x8 Yes Yes No
P1-C6 PCIe3 x8 Yes Yes No
P2-C1 PCIe3 x16 Yes Yes Yes
1
P2-C2 PCIe3 x8 Yes Yes No
P2-C3 PCIe3 x8 Yes Yes No
P2-C4 PCIe3 x16 Yes Yes No
P2-C5 PCIe3 x8 Yes Yes No
P2-C6 PCIe3 x8 Yes Yes No
1
Slots P1-C1 and P2-C1 inherit the I/O Adapter Enlarged Capacity attribute from the slot in the system
that connects to the EMX0 PCIe3 expansion drawer.
Notes:
• All slots are PCIe3 slots.
• All slots support full-length, full-height adapters or short form-factor with a full-height tailstock in
single-wide, generation 3, blind-swap cassettes.
• Slots C1 and C4 in each PCIe3 6-slot fanout module are PCIe3 x16 buses and slots C2, C3, C5, and C6
are PCIe x8 buses.
• All slots support enhanced error handling (EEH).
• All PCIe slots are hot swappable and can be serviced with the power on.
• All six slots in a PCIe3 6-slot fanout module support SR-IOV shared mode.
• Only four FC EC2U adapters can be in SR-IOV mode simultaneously per 6-slot fanout module.
Firmware slot capabilities
System PCIe slots are allocated direct memory access (DMA) space using the following algorithm:
• All slots are allocated a 2 GB default DMA window.
• Slots P1-C1 and P2-C1 inherit the I/O Adapter Enlarged Capacity attribute from the slot in the system
that connects to the EMX0 PCIe3 expansion drawer.
• All other I/O adapter slots are allocated Dynamic DMA Window (DDW) capability based on installed
platform memory. DDW capability is calculated assuming 4K I/O mappings:
– For systems with less than 64 GB of memory, slots are allocated no DDW capability.
– For systems with at least 64 GB of memory, but less than 128 GB of memory, slots are allocated 16
GB of DDW capability.
6
Power Systems: Adapter placement for the 9043-MRX

IBM Power Systems 9043-MRX Specifications

General

Brand	IBM
Model	Power Systems 9043-MRX
Category	Server
Language	English