IBM 8286-41A, Manual

Page: 38 / 72

Table 8. PCIe slot locations and descriptions for the 8286-41A or 8286-42A system (continued)
Slot Location
code Description PHB Adapter
size Slot capabilities Slot availability in
CAPI SR-IOV Dynamic direct
memory access
(DMA) window
I/O adapter
enlarged
capacity assign
order
3
8286-41A or
8286-42A
(1 processor)
8286-42A
(2 processors)
Slot 3 P1-C4
1, 6
PCIe3 x8 Processor
Module 2,
Chip-0, PHB1 Full-height,
half-length or
Short
(low-profile) No Yes Yes 6 No Yes
Slot 4 P1-C5
1
PCIe3 x16 Processor
Module 2,
Chip-0, PHB0 Full-height,
full-length Yes Yes Yes 11 No Yes
Slot 5 P1-C6
1
PCIe3 x16 Processor
Module 1,
Chip-1, PHB0 Full-height,
full-length Yes Yes Yes Default Yes Yes
Slot 6 P1-C7
1
PCIe3 x16 Processor
Module 1,
Chip-0, PHB0 Full-height,
full-length Yes Yes Yes Default Yes Yes
Slot 7 P1-C8
2
PCIe3 x8 PCIe3 Switch 2,
S2P16 Full-height,
half-length or
Short
(low-profile) No No Yes 5, 10
4
Yes Yes
Slot 8 P1-C9
2
PCIe3 x8 PCIe3 Switch 2,
S2P17 Full-height,
half-length or
Short
(low-profile) No No Yes 6, 8
5
Yes Yes
Slot 9 P1-C10
2, 6
PCIe3 x8 PCIe3 Switch 2,
S1P9 Full-height,
half-length or
Short
(low-profile) No Yes Yes Default Dedicated slot for the LAN adapter
Slot 10 P1-C11
2
PCIe3 x8 PCIe3 Switch 1,
S0P1 Full-height,
half-length or
Short
(low-profile) No No Yes 7 Yes Yes
Slot 11 P1-C12
2, 6
PCIe3 x8 PCIe3 Switch 1,
S1P9 Full-height,
half-length or
Short
(low-profile) No Yes Yes Default Yes Yes
1
Slot is a direct slot from the Processor Module and is a high-performance slot. The connectors in these slots are differently colored than the slots from the PCIe3 switches.
2
Slot connected by the PCIe3 switches.
3
Assigned PCIe slot order when the I/O Adapter Enlarged Capacity option is enabled. For example, if the option was enabled with a value of 5 on a two processor system, five slots (P1-C6, P1-C7, P1-C10,
P1-C12, and P1-C2) are enabled with the I/O enlarged capacity. If the option was enabled with a value of 6 on a two processor system, then six slots (P1-C6, P1-C7, P1-C10, P1-C12, P1-C2, and P1-C4) are
enabled with the I/O enlarged capacity, and so on.
Note:
Enabling the I/O Adapter Enlarged Capacity option will only affect Linux partitions. If your system does not have Linux partitions, the I/O Adapter Enlarged Capacity setting should be disabled.
4
The I/O Adapter Enlarged Capacity assignment order value is 5 for one processor or 10 for two processors.
5
The I/O Adapter Enlarged Capacity assignment order value is 6 for one processor or 8 for two processors.
6
For platforms with less than 64GB of total system memory, SR-IOV should not be configured in these slots as performance may be severely impacted.
v All slots are PCIe generation 3 slots.
v The peak bandwidths supported by the x16 slots are 16 gigabytes per second (GBps) in simplex mode and 32 GBps in duplex mode.
v The peak bandwidths supported by the x8 slots are 8 GBps in simplex mode and 16 GBps in duplex mode.
v Regular full-height adapters can be installed only in the full-height, full-length slots 2, 4, 5, and 6.
v The full-height, half-length or short (low-profile) adapters can be installed in slots 1, 3, 7, 8, 10, and 11.
v All slots support enhanced error handling (EEH).
v All PCIe slots are hot swappable and support concurrent maintenance.
PCIe adapters placement rules
Use this information while selecting slots for installing PCIe adapters in the 8286-41A or 8286-42A system.
Use Table 9 on page 23 to identify slot placement priorities in the system and the maximum number of
adapters that can be installed in the system.
1.
IBM Manufacturing requires the slot P1-C10 to hold a local area network adapter (LAN) adapter to
install and test the server. One LAN feature code (5899, EN0H, EN0K, EN0M, EN0S, EN0U, EN0W,
EN15, or EN17 for systems running AIX or Linux; 5899, EN15, or EN17 for systems running IBM i)
should be selected for this purpose. IBM will ship the LAN adapter in the P1-C10 slot. The client can
move this LAN adapter to a different slot and can use P1-C10 for different adapters if appropriate.
The following tables assume the LAN adapter remains in the P1-C10 slot.
2. The PCIe3 cable adapter (FC EJ08) is supported in slots P1-C3 (Slot 2), P1-C6 (Slot 5), P1-C5 (Slot 4),
and P1-C7 (Slot 6).
3. Slots P1-C3, P1-C5, P1-C6, and P1-C7 are x16 slots with busses direct from the Processor Modules and
can be used to install high-performance PCIe adapters. The adapter priority for these slots is for the
FC EJ12 (FPGA Accelerator), then for the high-performance adapters, followed by any other adapter.
22
Power Systems: PCIe adapter placement for the 8247-42L, 8286-41A, or 8286-42A