IBM 2943, Руководство пользователя, Страница: 64 / 78

Table 11. Location code descriptions
Location code I/O chip PCI host bridge (PHB) Description
P1-C1 I/O chip 1 PHB1 PCIe x8 slot
P1-C2 PHB2
P1-C3 PHB3
P1-C4 I/O chip 2 PHB4
P1-C5 PHB5
P1-C6 PHB6
P1-C7 I/O chip 3 PHB7
P1-C8 PHB8
P1-C9 PHB9
P1-C10 PHB10
Slot priority
The slot priority for all adapters is P1-C1, P1-C4, P1-C2, P1-C5, P1-C3, P1-C6, P1-C7, P1-C8, P1-C9, and
P1-C10.
There are three I/O chips. Each I/O chip controls three or four PCI host bridges (PHBs) and each PCIe
slot connects directly to a PHB.
v One I/O chip controls slots P1-C1, P1-C2, and P1-C3.
v A second I/O chip controls slots P1-C4, P1-C5, and P1-C6.
v A third I/O chips controls slots P1-C7, P1-C8, P1-C9, and P1-C10.
For best performance, fill P1-C1, P1-C4, P1-C2, P1-C5, P1-C3, and P1-C6 first with the highest bandwidth
adapters. Then, fill the remaining slots.
Determining the best place to install your adapter
You can use the placement guidelines and reference tables in this section to determine the best place in
which to install your adapter on systems running the IBM i operating system.
Finding the current system configuration in IBM i
You can use the System Service Tools in the IBM i operating system to find the current system
configuration.
Figure 6. Rear view. This figure shows the rear view of the expansion unit.
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Power Systems: PCI adapter placement for the IBM Power 720 Express or IBM Power 740 Express