I/O Connections To Cmp/Memory Modules - Fujitsu SPARC Enterprise T5440 Service Manual

"Servicing CMP/Memory Modules" on page 102
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"Servicing FB-DIMMs" on page 108
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I/O Connections to CMP/Memory
Modules
Each PCIe slot and onboard I/O device is connected to one CMP module. Device
address is dependent on system configuration. See
CMP Number on page 169
If a CMP module fails, the onboard devices and slots directly connected to it become
unavailable. Recovery of the I/O services connected to the failed CMP requires I/O
node reconfiguration.
For example, in a 4P system, if CMP0 goes offline, the following devices become
unavailable:
PCIe0
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PCIe1
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Onboard hard drives
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In this failure scenario, the system is unable to boot from internal drives.
Similarly, if CMP1 goes offline, the following devices become unavailable:
PCIe4
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PCIe5
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Onboard network devices
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Related Information
"System Bus Topology" on page 167
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"I/O Fabric in 2P Configuration" on page 168
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"I/O Fabric in 4P Configuration" on page 169
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160 SPARC Enterprise T5440 Server Service Manual • June 2011
for more information.
CMP Number on page 168 and