IBM 5877 12X Channel 4U I/O Drawer (DDR) 10x PCIe
IBM 5877 12X Channel 4U I/O Drawer (DDR) 10x PCIe
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Description
Product Description
Model 5802 and 5877 expansion units
Learn about the PCI Express™ (PCIe) slots in the 5802 and 5877 expansion units.
System description
The 5802 and 5877 expansion units are 19-inch, rack-mountable, I/O expansion drawers that are designed to be attached to the system using 12x double date rate (DDR) cables.
The expansion units can accommodate 10, generation 3 cassettes. These cassettes can be installed and removed without removing the drawer from the rack. The expansion units do not support I/O processor (IOP) adapters.
The following figure shows the back view of the expansion unit.
Table 1 describes the location codes that are shown in Figure 1.
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, P1-C10.
There are three I/O chips. Each I/O chip controls three or 4 PCI host bridges (PHBs) and each PCIe slot connects directly to a PHB.- One I/O chip controls slots P1-C1, P1-C2, and P1-C3.
- A second I/O chip controls slots P1-C4, P1-C5, and P1-C6.
- 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.
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Contact Info
International Systems Management, Inc.
5824-E Peachtree Corners East
Norcross, GA, 30092
USAPhone: 770.840.8994
Fax: 770.840.9228
Email: [email protected]
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